Have you ever noticed that your fingertips are winked when you’ve just finished swimming or washing dishes? It seems as if your hands have aged 30 years in a second. But is this an accident? Or is it something that nature has built into our bodies?

If your finger’s wrinkling up had no use at all, “ it wouldn’t need to.” Professor Tom Smulders from Newcastle University, UK, told BBC News. By studying wet fingers closely, Smulders and his partners found that the wrinkles looked a bit like the patterns on the car tire or on the bottom of the running shoes. So they made a guess that wrinkles on fingers might be able to help the hand hold things more tightly.

To test this, researchers asked 20 people to pick up marbles from water with their hands. But before they started, some of the people had to keep their hands in water for half an hour.

The researchers found that the people with wrinkled fingers completed the task the task faster than those with dry hands. But when they were asked to move dry marbles, all the people performed equally well, no matter they had the wrinkled fingers or not.

Our ancestors might not have played with marbles, but wrinkled fingers could have made it easier for them to climb around in the wet forests and catch fish from rivers, researchers say.

Similarly, our toes also get wrinkled in water. This may have developed from our ancestor’s need to run on wet ground.

But the question is, if wrinkled fingers are so helpful, why don’t our hands just stay that way all the time? Researchers explained that wrinkling has its disadvantage: wet fingertips are far less sensitive than smooth ones, reducing our sense of touch.

1.What does the underlined world “this ” in the third paragraph refer to?

A. Whether fingers have wrinkles after they are put in water.

B. Whether wrinkled fingers can hold things more tightly.

C. Why keeping things in water makes them wrinkled.

D. Why wrinkles help hands hold things more tightly.

2.The test shows that ________.

A. winkled hands hold dry things more tightly than dry hands do.

B. dry hands hold dry things more tightly than wrinkled hands do.

C. winkled hands hold wet things more tightly than dry hands do.

D. dry hands hold wet things more tightly than wrinkled hands do.

3.What might be the disadvantage of wrinkled fingers?

A. They are too sensitive to be touched.

B. They might be more likely to get hurt.

C. They cannot hold things tightly enough.

D. They are not so sensitive as dry fingers.

 从II栏中选出I栏中各句的正确答语,有两个多余选项。

I

1. Is this a pen?

2.Where are your brothers?

3.What color is your pen?

4.Do you like vegetables for lunch？

5..How are your family?

II

A.It’s black.

B.We are fine,thanks.

C.No,it isn’t.My pen is red.

D.Yes,they are healthy.

E. They are in Beijing.

F.That sounds relaxing.

G..No,it’s a pencil.

6.Is this a pen?

7.Where are your brothers?

8.What color is your pen?

9.Do you like vegetables for lunch?

10.How are your family?

 Found:A black watch

Is this your watch？It is found in the classroom. Please call Jessica at 36206018.

             Lost:My school card

My name is David Hand. The number of my school card is 20070107. Please call me at 33429703 or my friend Judy. Her phone number is 33073061. Thank you.

1.    finds a watch.

A. Jessica  B. David   C. Judy   D. Hand

2.What’s the color of the watch?

A. White    B. Black   C. Red    D. I don’t know

3.    school card is lost.

A. Jessica’s B. Judy’s C. David’s  D. My

4.Jane’s watch is lost,she should应该 call     .

A. 33073061 B. 36206018  C. 33429703  D. 20070107

5.Tim finds David’s card,he should call    .

A. 33429703 B. 20070107  C. 36206018  D. 33037061

补全对话

阅读对话，在空白处填上一个合适的单词

A: ____ (1) picture is this?

B: It’s my father’s.

A: _____ (2) are these boys and girls?

B: They’re my father’s _____(3). My father is a teacher.

A: What ____ (4) he ____ (5)?

B: English.

A:       (6)  _____ (7) students are _____ (8) in his class?

B: There are fifty-three.

A: ____ (9) are they from?

B: Some of them are from England.

A: ____ (10) do they like China?

B: They like China very much.

从下面的方框中选择适当的句子，完成下列对话。（计5分）

A. Are you Alice?

B. Is this your jacket?

C. Can you spell“jacket”?

D. Nice to meet you, too

E. Are you Bob?

A: Hello!

B: Hi!

A:    1.   

B: Yes , I am.  2.      

A: Yes, I am Alice. Nice to meet you!

B:  3.             

A: How are you, Bob?

B: I’m fine, thank you. And you ?

A: Me, too. Is this a jacket in English?

B: Yes, you are right.

A:  4.           

B: Sure.  J-A-C-K-E-T

A:    5.         

B: Yes, it is my jacket.

A: Thank you very much.

B: That’s OK.