Read the following passage and mark the letter A, B, C,  D on your answer sheet to indicate the correct answer to each of the questions. Fill in the appropriate word in question 30

        After a busy day of work and play, the body needs to rest. Sleep is necessary for good health. During this time, the body recovers from the (26) ______ of the previous day. The rest that you get while sleeping enables your body to prepare itself for the next day.

        There are four levels of sleep, each being a little (27) ______ than the one before. As you sleep, your muscles relax little by little. Your heart beats more slowly, and your brain slows down. After you (28) _____ the fourth level, your body shifts back and forth from one level of sleep to the other.

        Although your mind slows down, you will dream from time to time. Scientists who study sleep state that when dreaming (29) ______ , your eyeballs begin to move more quickly. This stage of sleep is called REM, which stands for Rapid Eye Movement.

        If you have trouble falling asleep, some people recommend breathing very slowly and deeply. Other people believe that drinking warm milk will make you (30) ______. There is also an old suggestion that counting sheep will put you to sleep!

A. dizzy

B. drowsy

C. tired

D. awake

Read the following passage and mark the letter A, B, C,  D on your answer sheet to indicate the correct answer to each of the questions. Fill in the appropriate word in question 29

        After a busy day of work and play, the body needs to rest. Sleep is necessary for good health. During this time, the body recovers from the (26) ______ of the previous day. The rest that you get while sleeping enables your body to prepare itself for the next day.

        There are four levels of sleep, each being a little (27) ______ than the one before. As you sleep, your muscles relax little by little. Your heart beats more slowly, and your brain slows down. After you (28) _____ the fourth level, your body shifts back and forth from one level of sleep to the other.

        Although your mind slows down, you will dream from time to time. Scientists who study sleep state that when dreaming (29) ______ , your eyeballs begin to move more quickly. This stage of sleep is called REM, which stands for Rapid Eye Movement.

        If you have trouble falling asleep, some people recommend breathing very slowly and deeply. Other people believe that drinking warm milk will make you (30) ______. There is also an old suggestion that counting sheep will put you to sleep!

A. exists

B. occurs

C. survives

D. appears

Read the following passage and mark the letter A, B, C,  D on your answer sheet to indicate the correct answer to each of the questions. Fill in the appropriate word in question 28

        After a busy day of work and play, the body needs to rest. Sleep is necessary for good health. During this time, the body recovers from the (26) ______ of the previous day. The rest that you get while sleeping enables your body to prepare itself for the next day.

        There are four levels of sleep, each being a little (27) ______ than the one before. As you sleep, your muscles relax little by little. Your heart beats more slowly, and your brain slows down. After you (28) _____ the fourth level, your body shifts back and forth from one level of sleep to the other.

        Although your mind slows down, you will dream from time to time. Scientists who study sleep state that when dreaming (29) ______ , your eyeballs begin to move more quickly. This stage of sleep is called REM, which stands for Rapid Eye Movement.

        If you have trouble falling asleep, some people recommend breathing very slowly and deeply. Other people believe that drinking warm milk will make you (30) ______. There is also an old suggestion that counting sheep will put you to sleep!

A. reach

B. attain

C. arrive

D. achieve

Read the following passage and mark the letter A, B, C,  D on your answer sheet to indicate the correct answer to each of the questions. Fill in the appropriate word in question 26

        After a busy day of work and play, the body needs to rest. Sleep is necessary for good health. During this time, the body recovers from the (26) ______ of the previous day. The rest that you get while sleeping enables your body to prepare itself for the next day.

        There are four levels of sleep, each being a little (27) ______ than the one before. As you sleep, your muscles relax little by little. Your heart beats more slowly, and your brain slows down. After you (28) _____ the fourth level, your body shifts back and forth from one level of sleep to the other.

        Although your mind slows down, you will dream from time to time. Scientists who study sleep state that when dreaming (29) ______ , your eyeballs begin to move more quickly. This stage of sleep is called REM, which stands for Rapid Eye Movement.

        If you have trouble falling asleep, some people recommend breathing very slowly and deeply. Other people believe that drinking warm milk will make you (30) ______. There is also an old suggestion that counting sheep will put you to sleep!

A. actions

B. activities

C. acts

D. activeness

Read the following passage and mark the letter A, B, C,  D on your answer sheet to indicate the correct answer to each of the questions. Fill in the appropriate word in question 27

        After a busy day of work and play, the body needs to rest. Sleep is necessary for good health. During this time, the body recovers from the (26) ______ of the previous day. The rest that you get while sleeping enables your body to prepare itself for the next day.

        There are four levels of sleep, each being a little (27) ______ than the one before. As you sleep, your muscles relax little by little. Your heart beats more slowly, and your brain slows down. After you (28) _____ the fourth level, your body shifts back and forth from one level of sleep to the other.

        Although your mind slows down, you will dream from time to time. Scientists who study sleep state that when dreaming (29) ______ , your eyeballs begin to move more quickly. This stage of sleep is called REM, which stands for Rapid Eye Movement.

        If you have trouble falling asleep, some people recommend breathing very slowly and deeply. Other people believe that drinking warm milk will make you (30) ______. There is also an old suggestion that counting sheep will put you to sleep!

A. higher

B. shorter

C. deeper

D. lighter

Puberty is the time when your body grows from a child's to an adult's. You will know that you are going (1)............ puberty by the way that your body changes.

If you are a boy , your shoulders will (2).......... and your body will become more muscular . these changes are caused by the hormones (3)............ your body begins producing in much larger amounts (4).............. before

puberty (5).............. over a number of year, and the age at which it starts and ends varies (6).......... . It generally begins somewhere between the ages of 7 and 13 for girls, and somewhere between the ages of 9 and 15 for boys, although it can be earlier or later for some (7)......... in age is normal

Sometimes, (8) ............., people pass this normal age range for puberty (9) showing any sings of body changes. This is(10) .......... delayed puberty

1. A. at B. in C. through D. out of

2. A widen B. increase C. expand D. spread

3. A. how B. what C. this D. that

4. A. more than B. than C. as well as D. as

5. A. survives B. exists C. begins D. occurs

6. A. wide B. widely C. width D. widen

7. A. period B . offer C. range D. limit

8. A however B. but C. moreover D.although

9. A. refusing B. avoiding C .with D. without

10. A.Call B.called C. being calles D. having called

You use energy every day. Energy is the ability (21) _______ change. When you ride a bike, you use energy from your body to make the bike move. Your parents use heat energy to change the food (22) _______ raw to cooked.

Not all energy is used as soon as you get it. Sometimes energy is (23) _______ to be used later, stored energy can be chemical energy stored in a battery or in your body. It can also be potential energy. Potential energy is based on (24) _______ position of the object. A soccer player standing ready to kick a ball has potential energy.

Energy of motion is also called kinetic energy. Potential energy converts, or changes into, kinetic energy when the thing or person begins to move. When the soccer player kicks the ball, kinetic energy is at work. Energy often changes forms. When you (25) _______ the light, electricity converts into light. When you eat, chemical energy from your food converts. into thermal and mechanical energy that allows you to move and work.

21.A. cause              B. to cause        C. causing.       D. caused

22.A. from               B. in                    C. with             D. by

23.A. saved             B. kept                C. stored            D. made

24.A. the                 B. a                      C. an                   D. x

25.A. switch off     B. switch over     C. switch back      D. switch on

Read the following passage and mark the letter A, B, C,  D on your answer sheet to indicate the correct answer to each of the questions.

        After a busy day of work and play, the body needs to rest. Sleep is necessary for good health. During this time, the body recovers from the (26) ______ of the previous day. The rest that you get while sleeping enables your body to prepare itself for the next day.

        There are four levels of sleep, each being a little (27) ______ than the one before. As you sleep, your muscles relax little by little. Your heart beats more slowly, and your brain slows down. After you (28) _____ the fourth level, your body shifts back and forth from one level of sleep to the other.

        Although your mind slows down, you will dream from time to time. Scientists who study sleep state that when dreaming (29) ______ , your eyeballs begin to move more quickly. This stage of sleep is called REM, which stands for Rapid Eye Movement.

          If you have trouble falling asleep, some people recommend breathing very slowly and deeply. Other people believe that drinking warm milk will make you (30) ______. There is also an old suggestion that counting sheep will put you to sleep!

Điền vào ô số 30

A. dizzy

B. drowsy

C. tired

D. awake 

Read the following passage and mark the letter A, B, C,  D on your answer sheet to indicate the correct answer to each of the questions.

        After a busy day of work and play, the body needs to rest. Sleep is necessary for good health. During this time, the body recovers from the (26) ______ of the previous day. The rest that you get while sleeping enables your body to prepare itself for the next day.

        There are four levels of sleep, each being a little (27) ______ than the one before. As you sleep, your muscles relax little by little. Your heart beats more slowly, and your brain slows down. After you (28) _____ the fourth level, your body shifts back and forth from one level of sleep to the other.

        Although your mind slows down, you will dream from time to time. Scientists who study sleep state that when dreaming (29) ______ , your eyeballs begin to move more quickly. This stage of sleep is called REM, which stands for Rapid Eye Movement.

          If you have trouble falling asleep, some people recommend breathing very slowly and deeply. Other people believe that drinking warm milk will make you (30) ______. There is also an old suggestion that counting sheep will put you to sleep!

Điền vào ô số 27

A. higher

B. shorter

C. deeper 

D. lighter