题目列表(包括答案和解析)
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 i 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 o 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.
26, What does the underlined world “this ” in the third paragraph refer to?
A. Wether fingers have wrinkles after they are put in water.
B. Wether 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.
27, 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.
28. 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.
根据A栏中的问句,从B栏中选出相应的答句。
26. What day is it today?
A. Swimming.
27. Let's play basketball.
B. Yes, they are.
28. What's your telephone number?
C. 8923570.
29. What's this in English?
D. It's a box.
30. Hello, my name is Amy.
E. It is Monday.
31. What colour is the bag?
F. It is red.
32. Are these your cousins?
G. OK. Good idea.
33. Where is your father?
H. P-E-N, pen.
34. How do you spell "pen"?
I. He is still at work.
35. What's your favourite sport?
J. Hello, my name is Mike.
My father is tall and has short, gray hair. He wears glasses with heavy, black frames. But I just saw a picture of him from 1968. What a surprise! In the picture, he's 15 years old. He's short and he has glasses with small, round frames. He has long, yellow hair and it's really straight. He's wearing blue jeans and a T-shirt with the word "Love". I'm 15 years old now. I'm tall and I have short hair. My hair isn't yellow, it's blue. My dad thinks it's strange, but my friends think it's great. I wear glasses, but my glasses have bright red frames. They're so cool! I have an earring in one ear, too. Dad really can't understand that, I never wear blue jeans. I like big, baggy pants and long T-shirts. Most of my T-shirts have pictures of my favorite rock bands on them.
( )26. What kind of glasses did Father wear when he was fifteen years old? He wore ______.
A. glasses with heavy, black frames B. long and yellow glasses
C. glasses with bright red frames D. glasses with small, round frames
( )27. What color is my hair? It's ______.
A. yellow B. blue C. gray D. red
( )28. What do I like to wear? I like to wear ______.
A. blue jeans and a T-shirt B. yellow jeans and a T-shirt with the word "love"
C. big and baggy pants and long T-shirts D. blue jeans and an earring
( )29. What's on my father's T-shirt?
A.The word "love". B.Heavy and black frames. C.Pictures of rock bands. D.An earring.
( )30. Who has an earring in one ear?
A. My dad does. B. I do. C. My father does. D. My Friends do.
Bruce is an English boy. Now he lives in a big house in Beijing with his parents, but he can't speak Chinese, he can only speak English. He likes swimming very much, and his house is near a river. He often goes to swim with his friends in the river. There are three people in his family. His father is a bank clerk, his mother is a teacher. It's Sunday today, Bruce doesn't go to school. Their parents aren't at work. They go to the park by bus. Now they are in the park, they enjoy themselves very much.
( )26. What language does Bruce speak?
A. French B. English C. Chinese D. Japanese
( )27. What does Bruce like?
A. He likes running. B. He likes talking. C. He likes swimming. D. He likes singing.
( )28. Where does Bruce live?
A. He lives in a hotel. B. He lives in a school.
C. He lives in a bank. D. He lives in a big house.
( )29. Where is Bruce's house?
A. Next to a park. B. In front of a school. C. Near a river. D. Behind a park.
( )30. Where are Bruce and his parents now?
A. At home. B. At school. C. In a park. D. On a bus.
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