MY WORLD OF VOCABULARY PRIMARY 4 49 SAINT GABRIEL’S COLLEGE, THAILAND No. Vocabulary & Parts of speech Thai Definition Sentence 24 multiplication (n.) การคูณ The multiplication table of 5 is easy. 25 product (n.) ผลคูณ The product of 3 and 2 is 6. 26 multiplicand (n.) จำ�ำนวนที่ถูกคูณ Multiply 347 by 9. 347 is the multiplicand. 27 multiplier (n.) ตัวคูณ Multiply 347 by 9. 9 is the multiplier. 28 division (n.) การหาร Division of numbers is interesting. 29 divisor (n.) ตัวหาร The number by which we divide the dividend is called the divisor. 30 quotient (n.) ผลหาร The number that we get after the division is called the quotient. 31 remainder (n.) จำ�ำนวนที่เหลืออยู่ หลังจากการหาร (เศษ) When 8 is divided by 3 the remainder is 2. 32 dividend (n.) ตัวตั้ง The number to be divided is called the dividend. 33 divisible (adj.) หารได้ลงตัว 45 is divisible by 9 because there is no remainder. 34 factor (n.) ตัวประกอบ The factors of 15 are 1, 3 and 5. 35 multiple (n.) ผลคูณ The multiples of 2 are 2, 4, 6, 8, ... .
MY WORLD OF VOCABULARY PRIMARY 4 50 SAINT GABRIEL’S COLLEGE, THAILAND No. Vocabulary & Parts of speech Thai Definition Sentence 36 similarly (adv.) เช่นเดียวกัน Similarly we can verify 0.200 = 0.20 = 0.2 . 37 odd number (n.) จำ�ำนวนคี่ 1, 3, 5, 7, ... are odd numbers. 38 even number (n.) จำ�ำนวนคู่ Even numbers can be divided by 2. 39 prime number (n.) จำ�ำนวนเฉพาะ Numbers which have only two factors, 1 and the number itself are called prime numbers. 40 composite number (n.) จำ�ำนวนที่มี ตัวประกอบมากกว่า 2 ตัว Numbers which have more than two factors are called composite numbers. 41 highest common factor (HCF) (n.) ตัวหารร่วมมาก Highest common factor is normally written as HCF. It is also called greatest common divisor (GCD). The highest common factor of 4 and 6 is 2. 42 common factor (n.) ตัวประกอบร่วม The common factors of 12 and 15 are 1 and 3. 43 common multiple (n.) ผลคูณร่วม A common multiple of two numbers is one that is a multiple of both the numbers. 44 least common multiple (LCM) (n.) ผลคูณร่วมน้อย The LCM of two or more numbers is the smallest number that is divisible by each of the numbers. 45 prime factor (n.) ตัวประกอบเฉพาะ The prime factors of 24 are 2 and 3.
MY WORLD OF VOCABULARY PRIMARY 4 51 SAINT GABRIEL’S COLLEGE, THAILAND No. Vocabulary & Parts of speech Thai Definition Sentence 46 divisibility (n.) ความสามารถใน การหารได้ลงตัว Some divisibility rules : All even numbers are divisible by 2. 47 measure (v.) วัด We can measure the length by a ruler. 48 length (n.) ความยาว The length of a stick is 23 cm. 49 mass (n.) มวล The mass of a box is 250 g. 50 capacity (n.) ความจุ The capacity of this bottle is 1.5 l. 51 fraction (n.) เศษส่วน Fractions are smaller than a whole number. 52 numerator (n.) ตัวเศษ(ตัวเลขด้าน บนของเศษส่วน) In 2- 7 , 2 is the numerator. 53 denominator (n.) ตัวส่วน In 2- 7 , 7 is denominator. 54 proper fractions (n.) เศษส่วนแท้ 3- 5 is a proper fraction. 55 improper fraction (n.) เศษส่วนเกิน The numerator is greater than the denominator in improper fractions. 56 mixed number (n.) เศษส่วนจำ�ำนวนคละ 1 2- 3 is a mixed number. 57 equivalent fraction (n.) เศษส่วนที่มีค่าเท่า กัน 1- 2 , 2- 4 and 4- 8 , are equivalent fractions. 58 express (v.) แสดง Express 1 2- 3 as an improper fraction.
MY WORLD OF VOCABULARY PRIMARY 4 52 SAINT GABRIEL’S COLLEGE, THAILAND No. Vocabulary & Parts of speech Thai Definition Sentence 59 simplest form (n.) แบบฟอร์มที่ง่าย ที่สุด (เศษส่วน อย่างต่�่ำำ) 1- 4 is the simplest form of - 25 100 . 60 lowest terms (n.) เศษส่วนอย่างต่�่ำำ 8- 16 in lowest terms is 1- 2 . 61 shade (v.) แรเงา Shade one half of the square. 62 whole number (n.) จำ�ำนวนเต็ม 7 is a whole number. 63 decimal (adj.) ทศนิยม 1.25 is a decimal number. 64 tenths (n.) หลักส่วนสิบ In 4.57 , digit 5 is in the tenths place. 65 hundredths (n.) หลักส่วนร้อย In 4.57, digit 7 is in the hundredths place. 66 thousandths (n.) หลักส่วนพัน In 2.745, digit 5 is in the thousandths place. 67 decimal point (n.) จุดทศนิยม In 17.9 the decimal point is between 7 and 9. 68 hour hand (n.) เข็มนาฬิกา The hour hand is the smallest in a clock. 69 second hand (n.) เข็มวินาที The second hand is the fastest. 70 minute hand (n.) เข็มนาที The minute hand is longer than hour hand. 71 hour (n.) ชั่วโมง We have an hour long lunch break. 72 second (n.) วินาที 60 seconds make 1 minute.
MY WORLD OF VOCABULARY PRIMARY 4 53 SAINT GABRIEL’S COLLEGE, THAILAND No. Vocabulary & Parts of speech Thai Definition Sentence 73 minute (n.) นาที 1 minute is made up of 60 seconds. 74 noon (n.) ตอนเที่ยงวัน We have our lunch break at noon. 75 midnight (n.) เที่ยงคืน At midnight I am in my bed. 76 ante meridian (a.m.) / (n.) ก่อนเที่ยงวัน I go to school at 7:00 a.m. 77 post meridian (p.m.) / (n.) หลังเที่ยง I go back home at 4:00 p.m. 78 calendar (n.) ปฏิทิน A calendar has 12 months. 79 leap year ปีอธิกสุรทินคือ ปีที่ มี 366 วัน โดย เดือนกุมภาพันธ์มี 29 วัน A leap year comes once in four years and has 366 days. 80 geometry (n.) วิชาเรขาคณิต I like to study geometry. 81 line segment (n.) ส่วนของเส้นตรง There are 2 line segments in the figure. 82 ray (n.) รังสี A ray is a straight line. 83 angle (n.) มุม There are 4 right angles in a square. 84 vertex (n.) จุดยอดมุม Vertex is the point where an angle is formed. 85 interior (adj.) ภายใน There are 3 interior angles in a triangle. 86 exterior (adj.) ภายนอก There are 3 exterior angles in a triangle.
MY WORLD OF VOCABULARY PRIMARY 4 54 SAINT GABRIEL’S COLLEGE, THAILAND No. Vocabulary & Parts of speech Thai Definition Sentence 87 degree (n.) องศา A right angle is equal to 90 degrees. 88 protractor (n.) เครื่องมือรูปร่างครึ่ง วงกลมใช้ในการวัด และสร้างมุม We use a protractor to measure angles. 89 center (n.) จุดศูนย์กลาง Draw a line from the center of the circle. 90 base line (n.) เส้นฐาน The base line of the triangle ABC is BC. 91 right angle (n.) มุมฉาก Right angle is equal to 90o . 92 acute angle (n.) มุมแหลม Acute angle is less than 90o . 93 obtuse angle (n.) มุมป้าน Obtuse angle is more than 90o . 94 straight angle (n.) มุมตรง Straight angle is equal to 180o . 95 reflex angle (n.) มุมกลับ Reflex angle is greater than 180o . 96 full rotation (n.) มุมกลม Full rotation is 360o exactly. 97 triangle (n.) รูปสามเหลี่ยม Triangles have 3 sides. 98 quadrilateral (n.) รูปสี่เหลี่ยม Quadrilaterals have 4 sides. 99 rectangle (n.) รูปสี่เหลี่ยมผืนผ้า Opposite sides are equal in a rectangle. 100 square (n.) รูปสี่เหลี่ยมจัตุรัส All sides are equal in a square. 101 circle (n.) วงกลม There are 5 circles in the picture. 102 distance (n.) ระยะทาง The distance from my house to school is 5 km.
MY WORLD OF VOCABULARY PRIMARY 4 55 SAINT GABRIEL’S COLLEGE, THAILAND No. Vocabulary & Parts of speech Thai Definition Sentence 103 radius (n.) รัศมี The fixed distance between the center and any point on the circle is called its radius. 104 diameter (n.) เส้นผ่าศูนย์กลาง The diameter of a circle is twice the radius. 105 chord (n.) คอร์ด (เส้นตรง ที่ตัดเส้นโค้ง) A line segment whose end points lie on the circle is called a chord. 106 semicircle (n.) ครึ่งวงกลม Half a circle is a semicircle. 107 compass (n.) วงเวียน, เข็มทิศ We use a compass to make a circle. 108 symmetry (n.) สมมาตร The kite has symmetry about a line. 109 symmetrical (adj.) สมมาตร T is a symmetrical letter. 110 axis of symmetry (n.) แกนสมมาตร The line that divides the figure into identical parts is called the axis of symmetry. 111 line of symmetry (n.) เส้นสมมาตร A line of symmetry divides a figure into 2 equal halves. 112 perimeter (n.) ความยาวรอบรูป Perimeter is the distance around a figure. 113 area (n.) พื้นที่ Find the area of a square. 114 length (n.) ความยาว The length of the box is 7 cm. 115 breadth (n.) ความกว้าง The breadth of the table is 1.5 m. 116 line graph (n.) กราฟเส้น The line graph shows the number of umbrellas sold at Mrs Chin’s shop over one week.
SCIENCE AND TECHNOLOGY
MY WORLD OF VOCABULARY PRIMARY 4 57 SAINT GABRIEL’S COLLEGE, THAILAND VOCABULARY SCIENCE AND TECHNOLOGY UNIT 1 : AIR, RESPIRATION AND PHOTOSYNTHESIS No. Vocabulary & Parts of speech Thai Definition Sentence 1 breeze (n.) สายลมที่พัดเบาๆ Breeze is a gentle wind. 2 gale (n.) ลมพายุ It’s been raining with gale since yesterday. 3 humidity (n.) ความชื้น High humidity makes us feel sticky and uncomfortable. 4 component (n.) ส่วนประกอบ Oxygen is one of the components of air. 5 constitute (v.) ถือว่าเป็น Dust constitutes the air pollutants. 6 extinguisher (n.) เครื่องดับเพลิง Every household must have fire extinguisher for emergency use. 7 spiracle (n.) รูเปิด A butterfly has spiracles on its abdomen and thorax. 8 reptile (n.) สัตว์เลื้อยคลาน Reptiles have dry scaly skin. 9 diaphragm (n.) กะบังลม When we breathe, our diaphragm contracts and relaxes. 10 respiration (n.) การหายใจ Respiration is important to both plants and animals.
MY WORLD OF VOCABULARY PRIMARY 4 58 SAINT GABRIEL’S COLLEGE, THAILAND UNIT 2 : TRANSPORT SYSTEM No. Vocabulary & Parts of speech Thai Definition Sentence 1 transport (v.) ขนย้าย Blood transports useful and unuseful materials in the human circulatory system. 2 substance (n.) สสาร Our body produces essential substances. 3 efficient (adj.) มีประสิทธิภาพ Plants have an efficient transport system. 4 necessary (adj.) จำ�ำเป็น Water is necessary for living things to sustain life. 5 clot (v.) (เลือด)แข็งตัว There are drugs that help blood to clot. 6 bleeding (n.) เลือดไหล Kids often have bleeding in the nose when the weather is hot. 7 vessel (n.) เส้นโลหิต Some blood vessels are thick and narrow. 8 prevent (v.) ป้องกัน To prevent high level of air pollution, burning of trash must be prohibited. 9 artery (n.) เส้นเลือดแดง An artery is a wide and muscular blood vessel. 10 capillary (n.) เส้นเลือดฝอย Capillary carries food and wastes. 11 platelet (n.) เกล็ดเลือด Platelet helps the blood to clot if there is a wound. 12 contract (v.) หดตัว Our lungs contract when we inhale.
MY WORLD OF VOCABULARY PRIMARY 4 59 SAINT GABRIEL’S COLLEGE, THAILAND No. Vocabulary & Parts of speech Thai Definition Sentence 13 relax (v.) คลายตัว Our lungs relax when we exhale. 14 specialized (adj.) เฉพาะทาง The heart is a specialized organ that pumps blood around the body. UNIT 3 : MATTER No. Vocabulary & Parts of speech Thai Definition Sentence 1 matter (n.) สสาร Matter exists in different forms. 2 mass (n.) มวล The package has a mass of 10 Kg. 3 volume (n.) ปริมาตร A bottle of milk has a volume of 300 ml. 4 container (n.) ภาชนะ Liquid takes the shape of its container. 5 temperature (n.) อุณหภูมิ The normal human body temperature is 37o C. 6 effect (n.) ผลกระทบ Cooling is the effect of decreasing the temperature. 7 occupy (v.) ครอบครอง All forms of matter occupy space. 8 spread (v.) กระจาย Virus can spread easily through the air. 9 squeeze (v.) บีบ Gas molecules can be squeezed into a small container.
MY WORLD OF VOCABULARY PRIMARY 4 60 SAINT GABRIEL’S COLLEGE, THAILAND No. Vocabulary & Parts of speech Thai Definition Sentence 10 melting (n.) การละลาย Melting occurs when a substance absorbs heat from the surroundings. 11 evaporation (n.) การระเหย Evaporation takes place when water boils. 12 condensation (n.) การควบแน่น The mist formed outside a cold bottle is due to condensation. 13 freezing (adj.) การแข็งตัว The freezing point of water is 0o C. 14 state (n.) สถานะ Temperature can change the state of matter. 15 pour (v.) เท She poured a cup of milk into the mixture. UNIT 4 : FORMS AND SOURCES OF ENERGY No. Vocabulary & Parts of speech Thai Definition Sentence 1 force (n.) แรง Force is needed to move a cart. 2 energy (n.) พลังงาน We get energy from food to do our work. 3 digestion (n.) การย่อย Digestion is changing large food into a more soluble chemical substances. 4 respiration (n.) การหายใจ Respiration requires digested food and oxygen to release energy.
MY WORLD OF VOCABULARY PRIMARY 4 61 SAINT GABRIEL’S COLLEGE, THAILAND No. Vocabulary & Parts of speech Thai Definition Sentence 5 circulation (n.) การหมุนเวียนโลหิต Digested food is distributed to our body cells through circulation. 6 require (v.) ต้องการ Photosynthesis requires carbon dioxide, water and sunlight to make food for plants. 7 function (n.) หน้าที่ The function of the heart is to pump blood around the body. 8 thermal (adj.) เกี่ยวกับความร้อน We get thermal energy from the sun. 9 raise (v.) ยก Potential energy increases when an object is raised at higher elevation. 10 exert (v.) ออกแรง To push a heavy object, greater force must be exerted. 11 source (n.) แหล่ง The sun is the main source of energy. 12 dependent (adj.) ขึ้นอยู่กับ Animals are dependent on plants for food. 13 generate ( (v.) ผลิต Biomass can be used to generate electricity. 14 pressure (n.) ความดัน Intense pressure helps fossil fuel formation. 15 transfer (v.) ถ่ายโอน There is a continuous transfer of energy from plants to animals.
MY WORLD OF VOCABULARY PRIMARY 4 62 SAINT GABRIEL’S COLLEGE, THAILAND UNIT 5 : LIGHT No. Vocabulary & Parts of speech Thai Definition Sentence 1 artificial (adj.) เทียม A light bulb is an artificial source of light. 2 ray (n.) รังสี Ray is a single line of light. 3 beam (n.) ลำ�ำแสง There’s a beam of light shining through the door. 4 transparent (adj.) โปร่งใส Water is transparent. 5 translucent (adj.) โปร่งแสง My glass door is translucent. 6 opaque (adj.) ทึบแสง Most of the objects around us are opaque. 7 spectacles (n.) แว่นตา Spectacles can be transparent or translucent. 8 through (prep.) ทะลุ Light can pass through transparent objects. 9 reflection (n.) การสะท้อนกลับ I saw his reflection in the water. 10 refraction ( (n.) การหักเห Refraction is the bending of light as it passes through two optical media. 11 bouncing (n.) การกระดอน, การตกกระทบ Reflection is the bouncing of light. 12 plane (adj.) ระนาบ A plane mirror reflects almost all the light that falls into it. 13 image (n.) รูปภาพ You can see your image in the mirror.
MY WORLD OF VOCABULARY PRIMARY 4 63 SAINT GABRIEL’S COLLEGE, THAILAND No. Vocabulary & Parts of speech Thai Definition Sentence 14 polished (adj.) ขัด, มัน Polished surfaces are good reflectors of light. 15 optical (adj.) เกี่ยวกับ การมองเห็น Modern cameras have high definition optical lens. UNIT 6 : THE MOON No. Vocabulary & Parts of speech Thai Definition Sentence 1 quarter (n.) หนึ่งในสี่ส่วน The moon’s size is about a quarter of the earth. 2 neighbor (n.) เพื่อนบ้าน The moon is the closest earth’s neighbor in the solar system. 3 brightest (adj.) สว่างที่สุด The sun is the brightest celestial object. 4 crater (n.) ปากปล่องภูเขาไฟ Craters on the moon are visible on earth using a telescope. 5 surface (n.) พื้นผิว The surface of the moon is covered with a layer of dust. 6 atmosphere (n.) บรรยากาศ The atmosphere shields us from ultraviolet rays from the sun. 7 toward (prep.) สู่ The moon is facing towards the sun during new moon. 8 revolve (v.) โคจร The Earth revolves around the sun. 9 satellite (n.) ดาวเทียม The moon is the Earth’s only satellite.
MY WORLD OF VOCABULARY PRIMARY 4 64 SAINT GABRIEL’S COLLEGE, THAILAND No. Vocabulary & Parts of speech Thai Definition Sentence 10 phase (n.) ระยะ, ช่วง The phases of the moon is due to its relative position from the sun. 11 crescent (adj.) เสี้ยว The moon is waxing crescent three days after new moon. 12 gibbous (adj.) ซึ่งนูนทั้งสองด้าน Gibbous moon is seen four days before and after full moon. 13 opposite (n.) สิ่งตรงข้าม Waxing moon is the opposite of waning moon. 14 spacecraft (n.) ยานอวกาศ Apollo 11 was the first spacecraft that landed on the moon. 15 orbit (v.) โคจร The moon orbits around the Earth in 28 days.
MY WORLD OF VOCABULARY PRIMARY 4 65 SAINT GABRIEL’S COLLEGE, THAILAND I TELL STUDENTS THAT THE OPPORTUNITIES I HAD WERE A RESULT OF HAVING A GOOD EDUCATIONAL BACKGROUND. EDUCATION IS WHAT ALLOWS YOU TO STAND OUT.
SOCIAL STUDIES
MY WORLD OF VOCABULARY PRIMARY 4 67 SAINT GABRIEL’S COLLEGE, THAILAND VOCABULARY SOCIAL STUDIES GEOGRAPHY UNIT 1: GEOGRAPHICAL TOOLS No. Vocabulary & Parts of speech Thai Definition Sentence 1 area (n.) พื้นที่ A lot of tourists visit this beautiful area of the city. 2 accurate (adj.) แม่นยำ�ำ You can use a ruler to get the accurate measure of that straight line. 3 compass (n.) เข็มทิศ A compass can help us find directions. 4 curved (adj.) โค้ง The curved part of this new road is dangerous. 5 demonstrate (v.) สาธิต Flight attendants always demonstrate how to be safe during a flight. 6 diagram (n.) แผนภาพ Many people have worked together to create this complete diagram of Bangkok. 7 direction (n.) ทิศทาง North, east, west and south are the four main directions. 8 distance (n.) ระยะทาง We need to travel a long distance going our vacation house.
MY WORLD OF VOCABULARY PRIMARY 4 68 SAINT GABRIEL’S COLLEGE, THAILAND No. Vocabulary & Parts of speech Thai Definition Sentence 9 estimation (n.) การประมาณ My estimation on the total cost of all our purchases is almost correct. 10 filter (n.) ตัวกรอง The filter of the air-con needs cleaning. 11 height (n.) ความสูง The height of the tallest student in our class is five feet. 12 landscape (n.) ภูมิประเทศ The northern part of Thailand has a landscape of scenic mountains. 13 legend (n.) คำ�ำอธิบายองค์ ประกอบของแผนที่ The meaning of all the symbols used on a map can be found on its legend. 14 route (n.) เส้นทาง Our travel route for today is from Pattaya to Bangkok vice versa. 15 satellite (n.) ดาวเทียม NASA is planning to send another satellite to the outer space. 16 specific (adj.) เฉพาะเจาะจง Please choose a specific topic that you can present in the class. 17 symbol (n.) สัญลักษณ์ For many people, the horseshoe is a symbol of luck. 18 tool (n.) อุปกรณ์ Mr. Lee puts all his working tools inside a wooden box. 19 temperature (n.) อุณหภูมิ The nurse gets my body temperature with a thermometer.
MY WORLD OF VOCABULARY PRIMARY 4 69 SAINT GABRIEL’S COLLEGE, THAILAND No. Vocabulary & Parts of speech Thai Definition Sentence 20 weather (n.) สภาพอากาศ The weather in this city changes from time to time. UNIT 2 : THE NATURAL ENVIRONMENT OF A PROVINCE No. Vocabulary & Parts of speech Thai Definition Sentence 1 bulky (adj.) ใหญ่/เทอะทะ Four men are placing a bulky package inside the van. 2 canal (n.) คลอง There are many canals that connect to the Chao Phraya River. 3 change (v.) เปลี่ยนแปลง She changes her dress quickly. 4 clay (n.) ดินเหนียว This pot is made from clay. 5 disaster (n.) ภัยพิบัติ The Corona Virus is a big disaster to humans. 6 environment (n.) สิ่งแวดล้อม Our environment needs our love and protection. 7 export (v.) ส่งออก Thailand exports rice to other countries. 8 fertile (adj.) อุดมสมบูรณ์ Fertile soil is good for growing different vegetables. 9 import (v.) นำ�ำเข้า They import the products that they sell. 10 mangrove (n.) ต้นโกงกาง Mane fish lay their eggs under the mangroves. 11 material (n.) วัสดุ You need to buy the materials for your project.
MY WORLD OF VOCABULARY PRIMARY 4 70 SAINT GABRIEL’S COLLEGE, THAILAND No. Vocabulary & Parts of speech Thai Definition Sentence 12 mineral (n.) แร่ธาตุ Fertile soil is rich in minerals. 13 rainfall (n.) ปริมาณน้�้ำำฝน Rainfall is important to farmers. 14 region (n.) ภูมิภาค Thailand is divided into different regions. 15 resource (n.) ทรัพยากร One of the most important resources of Thailand is the rainfall. 16 soil (n.) ดิน Soil is important to all living things. 17 technology (n.) เทคโนโลยี Modern technology is sometimes harmful. 18 textile (n.) สิ่งทอ Thai textile is colorful and nice. 19 valuable (n.) ของมีค่า You need to keep an eye on your valuables when you are in a crowded place. 20 underground (adj.) ใต้ดิน The underground water is used to irrigate crops. UNIT 3 : WAY OF LIVING No. Vocabulary & Parts of speech Thai Definition Sentence 1 celebrate (v.) เฉลิมฉลอง We celebrate Songkran Festival in April. 2 ceremony (n.) พิธี A Buddhist ceremony is happening inside the temple at the moment. 3 crime (n.) อาชญากรรม Killing somebody is a crime.
MY WORLD OF VOCABULARY PRIMARY 4 71 SAINT GABRIEL’S COLLEGE, THAILAND No. Vocabulary & Parts of speech Thai Definition Sentence 4 democratic (adj.) ประชาธิปไตย Philippines is a democratic country. 5 festival (n.) เทศกาล Loy Krathong is a Thai festival. 6 formal (adj.) เป็นทางการ My boss always comes to the office in her formal dress. 7 identity (n.) อัตลักษณ์ You can easily know the identity of your friends in times of trouble. 8 man-made (adj.) ที่มนุษย์สร้างขึ้น Man-made things are made by humans. 9 modern (adj.) ทันสมัย IPhones and computers are kinds of the modern technology. 10 natural (adj.) โดยธรรมชาติ Thailand is rich in natural resources, such as forests, seas, rivers, and lands. 11 outdoor (adv.) กลางแจ้ง Some people work outdoor. 12 polite (adj.) สุภาพ Always talk in a polite way to somebody older than you. 13 pollution (n.) มลพิษ Pollution is a big problem in major cities like Bangkok. 14 poverty (n.) ความยากจน The government wants to end poverty in all parts of the country. 15 religion (n.) ศาสนา Buddhism is the main religion of Thailand.
MY WORLD OF VOCABULARY PRIMARY 4 72 SAINT GABRIEL’S COLLEGE, THAILAND No. Vocabulary & Parts of speech Thai Definition Sentence 16 repair (v.) ซ่อมแซม A plumber can repair a broken tap. 17 self-employed (adj.) เป็นนายของตนเอง Many people nowadays prefer to be self-employed. 18 skill (n.) ทักษะ The work is difficult and it requires a lot of skill. 19 unemployment (n.) การว่างงาน Available jobs for the people are not enough to stop unemployment in our country. 20 uniform (n.) เครื่องแบบ Students wear their school uniform. UNIT 4 : THE PEOPLE AND THE ENVIRONMENT OF BANGKOK AND THAILAND No. Vocabulary & Parts of speech Thai Definition Sentence 1 anywhere (adv.) ที่ใดก็ได้ You shouldn’t throw your trash anywhere. 2 custom (n.) ขนบธรรมเนียม Going to temples to pay merit during Buddhist lent is a custom of Thai people. 3 disappear (v.) สาบสูญ We will all disappear if we don’t protect our environment. 4 earn (v.) ได้เงินจากการ ทำ�ำงาน Successful businessmen earn a lot of money from selling their products. 5 education (n.) การศึกษา Parents send their children to school to get education.
MY WORLD OF VOCABULARY PRIMARY 4 73 SAINT GABRIEL’S COLLEGE, THAILAND No. Vocabulary & Parts of speech Thai Definition Sentence 6 expert (n.) ผู้เชี่ยวชาญ Many experts are studying the changes on the Earth’s climate. 7 fertilizer (n.) ปุ๋ย Using too much commercial fertilizers in farming can be harmful to the soil. 8 government (n.) รัฐบาล All the countries in the world have their own form of government. 9 harm (v.) ทำ�ำอันตราย Pollution also harms the fish in the water. 10 laborer (n.) คนงาน A big company in the city needs a lot of laborers to work in its new factory. 11 part-time (adj.) นอกเวลา Justin got a part-time job working three days a week. 12 pipe (n.) ท่อ It was hard to bring water to houses in the past because there were no pipes. 13 properly (adv.) อย่างเหมาะสม Using our natural resources properly will help save our environment. 14 protect (v.) ป้องกัน The soldiers protect the whole the country. 15 respect (v.) เคารพ We should respect each other’s religion. 16 river bank (n.) ฝั่งแม่น้�้ำำ People in the past built their houses near the river banks.
MY WORLD OF VOCABULARY PRIMARY 4 74 SAINT GABRIEL’S COLLEGE, THAILAND No. Vocabulary & Parts of speech Thai Definition Sentence 17 tradition (n.) ประเพณี Wai Kru is a Thai tradition that pays respect to teachers. 18 utensil (n.) ภาชนะ Spoon and fork are kinds of utensils. 19 well-known (adj.) เป็นที่รู้จัก Som-tam is a well-known Thai dish. ECONOMICS UNIT 1 : GOODS AND SERVICES IN THE COMMUNITY No. Vocabulary & Parts of speech Thai Definition Sentence 1 benefit (n.) ประโยชน์ I enjoy all my benefits as a worker. 2 business (n.) ธุรกิจ My family has a small business. 3 butcher (n.) คนขายเนื้อ A butcher sells meat in the market. 4 collect (v.) เก็บเงิน The owner of our apartment will collect our rent at the end of the month. 5 community (n.) ชุมชน There are businesses and service providers in the community. 6 construction (n.) การก่อสร้าง The construction of my house begins tomorrow. 7 create (v.) สร้างสรรค์ Good and responsible people create a better community.
MY WORLD OF VOCABULARY PRIMARY 4 75 SAINT GABRIEL’S COLLEGE, THAILAND No. Vocabulary & Parts of speech Thai Definition Sentence 8 everyone (pron.) ทุกคน The sudden increase of the bread’s price surprised everyone. 9 grown (adj.) ที่เติบโต Her grown business continues to bring her good income. 10 librarian (n.) บรรณารักษ์ It is the duty of the librarian to check if the books are in their proper shelves. 11 often (adv.) บ่อยครั้ง Shopping malls often have promotions. 12 plumber (n.) ช่างประปา My mother called a plumber to come install our new toilet sink. 13 postal (adj.) เกี่ยวกับการ ไปรษณีย์ The postal worker delivered my mail. 14 private (adj.) ส่วนตัว Private service providers earn money straight from their customers. 15 product (n.) สินค้า Our fish products are sold locally and internationally. 16 provide (v.) จัดหา St. Gabriel’s College provides quality education. 17 public (adj.) ที่เกี่ยวข้องกับ ส่วนรวม Public servants get their salary from the people’s taxes. 18 receive (v.) ได้รับ The farmer receives the payment of his produce from the buyer.
MY WORLD OF VOCABULARY PRIMARY 4 76 SAINT GABRIEL’S COLLEGE, THAILAND No. Vocabulary & Parts of speech Thai Definition Sentence 19 service (n.) การบริการ A service is an action done for someone. 20 tax (n.) ภาษี We should always pay our taxes. UNIT 2 : PRODUCTIVITY, PRICE AND MARKETS No. Vocabulary & Parts of speech Thai Definition Sentence 1 alternative (n.) ทางเลือก Potato is an alternative for rice. 2 acquire (v.) ได้รับ Opportunity cost is the value that we always give up to acquire something. 3 capital (n.) ทุน Money, machines and tools are the capital that we need in the factory. 4 choice (n.) ทางเลือก Ben doesn’t have a choice but to sell his car to pay his debts. 5 decrease (v.) ลดลง The demand of roses has decreased after Valentine’s Day. 6 demand (n.) อุปสงค์ Expect that the demand of watermelon next month will decrease. 7 enough (adj.) เพียงพอ Ken and Art have enough money to buy a present for their friend. 8 entrepreneur (n.) ผู้ประกอบการ The entrepreneur took a risk in putting up his new business.
MY WORLD OF VOCABULARY PRIMARY 4 77 SAINT GABRIEL’S COLLEGE, THAILAND No. Vocabulary & Parts of speech Thai Definition Sentence 9 excessive (adj.) ซึ่งมากเกินไป The excessive supply of a certain product will make its price decrease. 10 exchange (v.) แลกเปลี่ยน .The buyer and the seller exchange products and money at the market. 11 fundamental (adj.) พื้นฐาน Scarcity is a fundamental economic problem. 12 increase (v.) เพิ่มขึ้น The price of the fruits in the market will increase if the rain doesn’t stop. 13 input (n.) ปัจจัยที่ใช้ในการ ผลิต Before you start working make sure to check all the necessary inputs. 14 limited (adj.) จำ�ำกัด The shoes that I bought at the shopping mall today are limited edition. 15 market (n.) ตลาด There are many different products that we can buy at the market. 16 output (n.) ผลผลิต Our boss came to the factory to check our output today. 17 population (n.) ประชากร Thailand’s population is almost 70 million. 18 price (n.) ราคา The prices of the fruits and vegetables will increase if the flood continues.
MY WORLD OF VOCABULARY PRIMARY 4 78 SAINT GABRIEL’S COLLEGE, THAILAND No. Vocabulary & Parts of speech Thai Definition Sentence 19 productivity (n.) ความสามารถ ในการผลิต The northern region of the country has a high agricultural productivity. 20 quantity (n.) ปริมาณ The quantity of the products made by the workers has met the demand. 21 scarcity (n.) การขาดแคลน The scarcity of resources forces us to make a choice. 22 shortage (n.) จำ�ำนวนที่ ไม่เพียงพอ The shortage of eggs will affect the production of cakes. 23 supply (n.) อุปทาน Due to the high demand of masks, its supply in the market is getting low. 24 surplus (n.) ส่วนที่เกิน The farmer has a surplus of tomatoes because not many buyers came today. 25 wage (n.) ค่าจ้าง The monthly wages of the workers were increased by their kind boss. UNIT 3 : CUSTOMER SATISFACTION No. Vocabulary & Parts of speech Thai Definition Sentence 1 advertisement (n.) การโฆษณา I have seen a nice advertisement on TV. 2 allowance (n.) เบี้ยเลี้ยง My mom always gives me allowance when I go to school.
MY WORLD OF VOCABULARY PRIMARY 4 79 SAINT GABRIEL’S COLLEGE, THAILAND No. Vocabulary & Parts of speech Thai Definition Sentence 3 appealing (adj.) ที่ดึงดูดความสนใจ Appealing packages can influence people to buy things. 4 behavior (n.) พฤติกรรม Studying consumer’s behavior is important to businessmen. 5 beneficial (adj.) เป็นประโยชน์ Making a shopping list before going to the supermarket is beneficial to moms. 6 brand (n.) ยี่ห้อ IPhone is a good brand of cellphone. 7 buyer (n.) ผู้ซื้อ Many buyers came to the mall yesterday for the last day of the year end sale. 8 certification (n.) เอกสารรับรอง HCB (Halal) gives certification to products which are good for Muslims. 9 consumer (n.) ผู้บริโภค A consumer is the one who uses a product. 10 customer (n.) ลูกค้า Our company has a good satisfaction rating from our valued customers. 11 electrical appliance (n.) เครื่องใช้ไฟฟ้า Television is an electrical appliance. 12 fairly (adv.) อย่างยุติธรรม The store keeper fairly talked to the buyers who came to buy at her shop. 13 income (n.) รายได้ If your income is limited, you had better not shop at the shopping mall.
MY WORLD OF VOCABULARY PRIMARY 4 80 SAINT GABRIEL’S COLLEGE, THAILAND No. Vocabulary & Parts of speech Thai Definition Sentence 14 influence (v.) มีอิทธิพล Advertisements influence people to buy goods. 15 legal (adj.) เกี่่ยวกัับกฎหมาย, ถููกกฎหมาย If something is not against the law, it is legal. 16 need (n.) ความจำ�ำเป็น Food is a basic need of people. 17 payer (n.) ผู้จ่ายเงิน The one who provides the money in buying something is the payer. 18 producer (n.) ผู้ผลิต Thailand is one of the biggest rice producers in the world. 19 promotion (n.) การส่งเสริมการขาย Our buy 1 get 1 promotion ends today. 20 quality (n.) คุณภาพ Thai textile products have good quality. 21 return (v.) ส่งคืน I will return the shoes that I bought online because they are not my size. 22 right (n.) สิทธิ It is everyone’s right to choose a product. 23 safe (adj.) ปลอดภัย A certain food product is safe to consume if it has an FDA certification. 24 satisfaction (n.) ความพึงพอใจ The customer ate his food with satisfaction. 25 want (n.) ความต้องการ Your wants will satisfy your desire but not your hungry stomach.
MY WORLD OF VOCABULARY PRIMARY 4 81 SAINT GABRIEL’S COLLEGE, THAILAND ALL MEN DREAM, BUT NOT EQUALLY. THOSE WHO DREAM BY NIGHT IN THE DUSTY RECESSES OF THEIR MINDS, WAKE IN THE DAY TO FIND THAT IT WAS VANITY: BUT THE DREAMERS OF THE DAY ARE DANGEROUS MEN, FOR THEY MAY ACT ON THEIR DREAMS WITH OPEN EYES, TO MAKE THEM POSSIBLE.
OCCUPATION
MY WORLD OF VOCABULARY PRIMARY 4 83 SAINT GABRIEL’S COLLEGE, THAILAND VOCABULARY OCCUPATION COMPUTER No. Vocabulary & Parts of speech Thai Definition Sentence 1 memory (n.) ความจำ�ำ A computer stores data in its memory. 2 input (n.) ข้อมูลที่ป้อนเข้าไป The data that you give the computer is called input. 3 output (n.) ข้อมูลที่ส่งออกมา When a computer finishes processing the data, you get output. 4 process (v.) ดำ�ำเนินการ Computers work on or process the data to solve problem. 5 hardware (n.) อุปกรณ์ อิเล็กทรอนิกส์, เครื่องกลไก ของคอมพิวเตอร์ Hardware is any part of the computer that you can touch. 6 drag (v.) ลาก You can drag an item around on the screen. 7 operating system (n.) ระบบปฏิบัติการ The operating system is what makes the computer run. 8 point (n.) จุดพอยต์ (วัดแบบ พิมพ์) A point is a measurement of how big the font will be.
MY WORLD OF VOCABULARY PRIMARY 4 84 SAINT GABRIEL’S COLLEGE, THAILAND No. Vocabulary & Parts of speech Thai Definition Sentence 9 icon (n.) ภาพ, สัญลักษณ์ The tools are shown on the screen in little pictures called icons. 10 program (n.) รายการ,โปรแกรม The instructions that a computer uses to process data are called programs. 11 software (n.) ชุดคำ�ำสั่ง Software is a programs that tell your computer what to do. 12 insert (v.) แทรก When you insert characters, the old characters make room for the new ones. 13 symbol (n.) สัญลักษณ์ Each key has a letter or number or symbol or little word on it. 14 shift key (n.) ปุ่มยกแคร่พิมพ์ดีด Press the shift key. 15 screen (n.) จอ, ฉาก The monitor is a screen that is a part of your computer. 16 search (v.) ค้นหา When you begin to search, the computer will ask you what character you are searching for. 17 background (n.) พื้นหลัง The background picture that we see on the desktop is called the wallpaper. 18 website (n.) ที่อยู่ของเว็บบน ระบบค้นหาและเข้า ถึงข้อมูลบน อินเตอร์เน็ต These locations are known as websites.
MY WORLD OF VOCABULARY PRIMARY 4 85 SAINT GABRIEL’S COLLEGE, THAILAND No. Vocabulary & Parts of speech Thai Definition Sentence 19 multimedia (n.) สื่อผสม Multimedia means multiple forms of media. 20 animation (n.) ภาพเคลื่อนไหว The different components of multimedia are text, images, sound, animation and video. TECHNOLOGY No. Vocabulary & Parts of speech Thai Definition Sentence 1 cleaning tool (n.) เครื่องมือ ทำ�ำความสะอาด There are cleaning tools in my house. 2 brush (n.) แปรงขัด A brush is a tool for cleaning the room. 3 feather brush (n.) ไม้ขนไก่ The feather brush uses for cleaning the dust. 4 broom (n.) ไม้กวาดพื้น A broom made from dry small grass is used for sweeping. 5 mop (n.) ไม้ถูพื้น A mop is used for drying and cleaning the floor. 6 bucket (n.) ถังน้�้ำำ Bucket is packet cleaning. 7 spade (n.) พลั่วขุดดิน Spade is garden tool. 8 hoe (n.) จอบขุดดิน The garden uses the hoe to prepare soil for planting. 9 rake (n.) คราด The rake is the garden tool for breaking the soil into small pieces.
MY WORLD OF VOCABULARY PRIMARY 4 86 SAINT GABRIEL’S COLLEGE, THAILAND No. Vocabulary & Parts of speech Thai Definition Sentence 10 lawn mower (n.) รถตัดหญ้า Father bought a lawn mower. 11 shovel (n.) พลั่วตักดิน Shovel is the garden tool, used for planting in a pot. 12 long handle fork (n.) ส้อมพรวนดิน The gardener uses the long handle fork to prepare soil for planting. 13 pruning sheer (n.) กรรไกรตัดกิ่งไม้ A pruning sheer is a garden tool, used for cutting and trimming the three shrubs. 14 plastic pipe (n.) สายยางฉีดน้�้ำำ Plastic pipe in the garden. 15 fertilizer N-P-K (n.) ปุ๋ย N-P-K N-P-K is the chemical fertilizer. 16 occupation (n.) อาชีพ My occupation is an engineer. 17 freelance (n.) อาชีพอิสระ The freelance career is needed by tom. 18 employee (n.) ลูกจ้าง The employee career is my occupation. 19 housewife (n.) แม่บ้าน My mother is a housewife. 20 reporter (n.) ผู้รายงานข่าว He works as a reporter.
MY WORLD OF VOCABULARY PRIMARY 4 87 SAINT GABRIEL’S COLLEGE, THAILAND MEMO
MY WORLD OF VOCABULARY PRIMARY 4 88 SAINT GABRIEL’S COLLEGE, THAILAND MEMO