These problems will in your life.What you can do is to face them and solve them.A. join B. grow C. enter D. appear 题目和参考答案——青夏教育精英家教网—

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These problems will in your life.What you can do is to face them and solve them.

A. join B. grow C. enter D. appear

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Antifreeze is a liquid(液体) that is added to water to keep it from freezing． When water freezes and turns to ice，it expands(膨胀)．The force of water expanding is so great that it will break the hardest metal．Water is used in car engines(发动机) to keep them cool while they run，and if this water is allowed to freeze in winter it can break the iron block of the engine．That is why antifreeze is necessary．

Water freezes at 0℃；the usual kind of antifreeze will not freeze until the temperature is－40℃．A mixture(混合物) of five parts of water and four parts of antifreeze will prevent freezing at－18℃；four parts of water and five parts of antifreeze reduce this to －22℃．

Alcohol is a kind of good antifreeze，but when the air is running it becomes hot and the alcohol boils away，so it must be changed very often．Most people use antifreeze that does not boil away when the engine is running．There are several chemicals that do this．One of the most popular is called ethylene glycol．

1.people use ________ to keep car engines cool．

A. antifreeze B. water C. alcohol D. ethylene glycol.

2.The usual kind of antifreeze freezes at ________．

A. 0℃ B. －18℃ C. －22℃ D. －40℃

3.We use antifreeze in order to ________．

A. keep alcohol in water

B. stop ice from becoming water

C. make the freezing point of water lower

D. raise the freezing point of water

4.Besides alcohol，________ is another kind of popular antifreeze．

A. water B. ethylene glycol C. any chemical D. any mixture

5.The text is written to ________．

A. tell us what antifreeze is

B. make people buy antifreeze

C. tell us that cars need antifreeze

D. show us how to protect car engines

Ocean Park is a good place ________．

A. having fun B. to having fun C. to have fun D. have fun

Who is ________ of the two girls?

A. quiet B. quietest

C. quieter D. the quieter

根据对话内容,从方框内的选项中选出能填入空白处的最佳选项,其中有两个为多余选项。

Jenny:Wow!Kate,you have changed a lot!

Kate:Why do you think so?

Jenny:36.1. But now you are very thin.

Kate:You changed,too!You used to have long hair,but now you have short hair.

Jenny:How is your school life?

Kate:37.2. School,home,school,home...every day!

Jenny:By the way,you used to play tennis after school.38.3.

Kate:No,I hardly ever do that now.I don’t have free time anymore.I have to do a lot of homework after school every day.

Jenny:Oh,poor Kate.

Kate:39.4.

Jenny:We are in the same boat.I love music and my mother used to take me to the concerts.But now I can only do that in my dreams.

Kate:How I miss the old days!

Jenny:40.5.

A.How about you,Jenny?

B.Do you still often play tennis now?

C.You used to have short hair.

D.It’s boring.

E.You used to be a little fat.

F.So do I.

G.You used to be quiet.

The boss always makes his workers from morning till night.

A. work B. to work C. working D. worked

Jack is good at basketball.He is the city basketball team.

A. at B. of C. with D. on

---Did you see any giant pandas in the zoo?

---I saw____________ .They were all sleeping then.

A. nothing B. no one C. nobody D. none

Look at the picture. In it you can see many boys and girls. They are at school now. The school is Huanghe Middle School. It is my new school.

This is my English teacher. His name is Zhang Jun. He is over 40 years old. He is tall and strong. His hair is short and black. He likes playing football and basketball.

The boy beside me is Liu Hua. He is my good friend. He is 13 years old. He has short hair. He is good at Maths. In his free time, he likes listening to music.

This slim girl is Lily. She is from England. She is 12. She is good at singing and dancing. We all like her very much.

根据短文内容，回答下列问题。

1.How old is Mr Zhang?

________________________________________________________________________

2.What does Mr Zhang look like?

________________________________________________________________________

3.What's Mr Zhang's hobby?

________________________________________________________________________

4.What is Liu Hua good at?

________________________________________________________________________

5.Where's Lily from?

________________________________________________________________________

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