She is good at ________ Chinese ________ math. Her favorite subject is English.

   A. either; or    B. not only; but also    C. neither; nor    D. both; and

--- Can the twins carry the boxes to their bedroom?

--- I’m afraid _____ of them can do it. They are too young.

  A. either         B. none        C. neither        D. each

 For years scientists have been arguing about whether nature or nurture (后天) decides what people will be like. Is it nature— what people are (41) with— that decides what they will be like? (42) is it nurture —what(43) to people when they are born —that decides what they will be like?

    Scientists have been studying twins to (44) if they can find the answer, because twins start out with the (45) DNA. Sometimes twins don’t live together at birth and grow up in different (46) and different places— so the nature is the same for both, but the nurture is different.

    When scientists (47) these twins in their later life, they some times find some surprising (48).

    Jim Springer and Jim Lewis were adopted（收养）by two different families at birth. They first met each other again thirty-nine years (49) and discovered they had a lot in (50). Both had been (51) twice. Their first wives were both named Linda and their second wives were both named Betty!

    Each twin had a son — one called his son James Alan and the (52) called his son James Alan, too. Their children each had a dog called “Toy”. They even arrived at their first (53) in the same color of car.

    So far twin (54) seem to show that both nature and nurture are important. What we have from birth, and how and where we live help to build (55) we are.

    1.A. born     B. grown    C. taught     D. made

   2.A. So     B. And    C. If     D. Or

   3.A. pretends    B. happens    C. falls     D. depends

   4.A. hear     B. win    C. see     D. plan

    5.A. nice     B. same    C. full     D. free

    6.A. families     B. cities    C. countries     D. nations

    7.A. believe     B. suggest    C. receive    D. compare

   8.A. numbers     B. discoveries    C. results     D. decisions

    9.A. ago     B. later    C. forward     D. behind

    10.A. common     B. fact    C. danger     D. trouble

   11.A. mentioned     B. married    C. succeeded     D. interviewed

    12.A. either     B. else    C. other     D. only

   13.A. competition     B. education    C. purpose     D. meeting

    14.A. studies    B. movies    C. challenges     D. mysteries

    15.A. what     B. when    C. where     D. who

A smile will tell people around you that you are a kind and friendly person. However, many people don’t smile because they think they ugly teeth. For example, one of my classmates, Mile, doesn’t have very nice teeth, so that is why he seldom opens his mouth. he even says that he has lost confidence because of his teeth. So it is very important for us to look after our teeth. In fact, a lot of people have this problem. Some people inherit teeth problems from their parents, while others’ teeth are damaged because of bad habits, like heavy smoking, eating too much sugar or not brush-ing teeth often. If your teeth are in bad shape, you should see a dentist and ask for help. They can help improve your teeth and tell you how to take care of then.

Smiling can help you to feel more confident and make other people think of you as a more friendly person. If you want to keep healthy, you should not only smile but also laugh. An Indian doctor called Katarina said that young children should laugh about 300 times a day, wile adults should laugh between 7 and 15 times a day. So please take this chance to smile and laugh now!

根据短文内容，选出一个最佳答案填入题前括号内。

1. What has made Mike lose his confidence?

A. His bad habit.  B. His bad teeth.       C. Not smiling.         D. Eating too much sugar.

2. Many people don’t smile because     .

A. they don’t like smiling                     B. they think they are ugly 

C. their teeth are not beautiful                D. they can’t open their mouths

3. What can a dentist do according to the passage?

A. A dentist can tell you how to improve your bad teeth.

B. A dentist can help you to take care of your bad teeth.

C. A dentist can tell you how to brush your teeth.

D. Both A and B.

4. If you want to keep healthy, you had better     .

A. not smile often                          B. laugh all the time 

C. neiter smile nor laugh                   D. smile and even laugh often

5. How many times should a child laugh every day in doctor Kataria’s opinion?

A. Either 300 or 30 times a day.                B. Between 7 and 15 times a day.

C. Around 300 times a day.                      D. Only 30 times a day.

A smile will tell people around you that you are a kind and friendly person. However, many people don’t smile because they think they ugly teeth. For example, one of my classmates, Mile, doesn’t have very nice teeth, so that is why he seldom opens his mouth. he even says that he has lost confidence because of his teeth. So it is very important for us to look after our teeth. In fact, a lot of people have this problem. Some people inherit teeth problems from their parents, while others’ teeth are damaged because of bad habits, like heavy smoking, eating too much sugar or not brush-ing teeth often. If your teeth are in bad shape, you should see a dentist and ask for help. They can help improve your teeth and tell you how to take care of then.
Smiling can help you to feel more confident and make other people think of you as a more friendly person. If you want to keep healthy, you should not only smile but also laugh. An Indian doctor called Katarina said that young children should laugh about 300 times a day, wile adults should laugh between 7 and 15 times a day. So please take this chance to smile and laugh now!
根据短文内容，选出一个最佳答案填入题前括号内。
1. What has made Mike lose his confidence?
A. His bad habit.  B. His bad teeth.      C. Not smiling.        D. Eating too much sugar.
2. Many people don’t smile because    .
A. they don’t like smiling                    B. they think they are ugly 
C. their teeth are not beautiful               D. they can’t open their mouths
3. What can a dentist do according to the passage?
A. A dentist can tell you how to improve your bad teeth.
B. A dentist can help you to take care of your bad teeth.
C. A dentist can tell you how to brush your teeth.
D. Both A and B.
4. If you want to keep healthy, you had better    .
A. not smile often                         B. laugh all the time 
C. neiter smile nor laugh                  D. smile and even laugh often
5. How many times should a child laugh every day in doctor Kataria’s opinion?
A. Either 300 or 30 times a day.               B. Between 7 and 15 times a day.
C. Around 300 times a day.                     D. Only 30 times a day.