The webs that spiders(蜘蛛) build to catch insects seem weak. However, the strength of spider thread is greater than steel. Webs can even stand up to very strong storms.
In each spider web, some threads are sticky(粘的), but some are not. When a spider is moving on the web, it will not step on the sticky threads. After a time the silk will lose its stickiness and become unable to catch insects. Then, spiders usually eat their own web.
Now a team of scientists has worked out why the spider web is so strong. It is not just the strength of the thread, but the clever design of the web. The key to a web’s success is its ability to keep its shape and strength even after some of the threads break, say scientists at the Massachusetts Institute of Technology. The scientists found the thread itself has the ability to become softer or harder. So it can hold different types of heavy things.
In tests, scientists used three other strong materials(材料) made into the same webs. The spider thread was six times stronger than any other material. More surprisingly, when the scientists took away up to 10 percent of the threads from different places, the web didn’t become any weaker. Actually, it became up to 10 percent stronger.
The spider web’s clever design gives scientists many new ideas. The findings could help design safer buildings and even a new type of strong material. “It’s a really good chance,” said Markus Buehler, a professor at MIT. “It may give us some new ideas for engineering.”
According to the passage, the spider web is strong because .
a. the spider’s thread is sticky
b. the thread has a lot of strength
c. the web has a clever design
d. the web can keep the strength forever
| A．ab | B．ac | C．bc | D．bd |
In paragraph 4, the scientists’ tests show that .
| A．the spider’s thread is stronger than the other three materials |
| B．the spider’s thread is the strongest material in the world |
| C．the spider’s thread can be as soft or hard as it needs to be |
| D．taking away some spider thread makes the web weaker |
From the last paragraph, we learn that .
| A．people can use spider webs to build houses |
| B．the findings give people new ideas for buildings |
| C．there are many reasons why the spider web is so strong |
| D．Professor Buehler will make a new type of material |
Which of the following would be the best title for the passage?
| A．How spiders catch insects |
| B．How spiders design webs |
| C．Spiders are clever designers |
| D．Webs are stronger than steel |
Mary’s mother waited for her in the car. Mary knew that she would be late if she didn’t hurry (赶快), but she didn’t care. It is her birthday today.
Ten minutes later, Mary opened the car door. Her mother said, “Don’t forget to go home with Cindy today.” Mary felt a little disappointed (失望的). She really hoped to have a party today, but her mother had to work late tonight. She promised Mary that they could have a party next week.
“I won’t forget,” replied Mary. When she arrived at school, she got out of the car and said goodbye to her mother. It seemed that her mother didn’t care. Mary walked into the school. She hoped her friends would remember that she turned eight today.
“Hi, Mary. Happy birthday,” said Julie.
Mary smiled and asked, “Julie, can you come to my party next week?”
Julie said, “I am sorry Mary, but I can’t.”
During the day, things didn’t go much better. All of her friends said they could not go to her party next week. At the end of the school day, Mary felt very sad.
Evening came and Cindy’s mother drove Mary home. When Mary opened the door, the house was dark. Her mother didn’t even get home yet! She felt very sad.
“Surprise!”
All the lights in Mary’s house came on. Her mother and all of her friends were there! There were many gifts in the living room. Then, she ran into the kitchen. Her mother prepared her favorite meal and a big chocolate cake. “Thank you, Mom!” Mary said, happily.Why didn’t Mary’s mother seare when Mary said goodbye to her?
| A．Because she didn’t care about Mary. |
| B．Because she tried to finish her work first. |
| C．Because she forgot it is Mary’s birthday today. |
| D．Because she didn’t want Mary to know about the party. |
How old is Mary?
| A．Eight. | B．Nine. | C．Ten. | D．Eleven. |
Mary invited Julie to her party _____.
| A．tonight | B．next day |
| C．next week | D．next month |
Mary felt _____ after school finished.
| A．sad | B．happy |
| C．surprised | D．relaxed |
What did Mary’s mother do for her?
| A．She drove Mary home. |
| B．She did the housework. |
| C．She bought Mary a beautiful skirt. |
| D．She prepared Mary’s favorite meal. |
Kelly’s favorite subject is P.E. But she has a hard time in P.E. class. She is not good at jumping very far, she has trouble throwing a ball, and she can’t run really fast. Sometimes, some kids make fun of (取笑) her. So why does Kelly love P.E. class?
The reason is that her teacher Mr. Burns always tells her to do her best. Though she only runs for a few minutes, Mr. Burns says, “Good job! Next time you will be able to go a little longer.” Mr. Burns even put a small box on the floor so Kelly would be able to practice jumping over it.
That night when Kelly finished dinner, she put three boxes and began practicing jumping over them. She made it! Kelly thought to herself, “Tomorrow I will be able to jump over those boxes in P.E. class.”
And sure enough, Kelly jumped over three boxes in class the next day. The other kids said to her, “Good job!”
There was a relay race (接力赛) on Tuesday. Kelly was scared that she would not be able to go very far. But when Mr. Burns said, “Ready! Set! Go!”, Kelly thought to herself, “I can do it.” When Kelly ran around the track (跑道), she heard many cheers and kids shouting, “Go Kelly! You can do it!” That was all she needed to hear. Kelly ran fast. She finished first! The kids cheered for her. Kelly felt so good. “Thank you Mr. Burns,” said Kelly. “Kelly, you ran the race, not me.” “Yes, but you always said I could do it.” According to Paragraph 1, we can learn that Kelly has trouble _____ in P.E. class.
| A．playing soccer | B．skating |
| C．swimming | D．running |
How did Mr. Burns help Kelly practice jumping?
| A．By jumping with her. |
| B．By asking other kids to help her. |
| C．By putting a small box on the floor. |
| D．By giving her a book on how to jump. |
In Paragraph 3, Kelly jumped over _____ box(es) after dinner.
| A．1 | B．2 | C．3 | D．4 |
Kelly was scared before the relay race because she was afraid that _____.
| A．she would fall |
| B．she would not run very far |
| C．other kids would make fun of her |
| D．other kids would run faster than her |
At the end of the story, we can learn that Kelly felt _____.
| A．happy | B．bored | C．upset | D．independent |
Rules in Tom’s life
There are lots of rules at Tom’s school. He thinks some of them are good. For example, they can’t arrive late; they can’t run in the hallways; and they can’t eat in class. All these rules are okay because they’re reasonable(合理的).
But there are some rules Tom doesn’t like. For example, at his school they don’t have to wear a uniform and they can’t wear jeans. But he thinks jeans are good because they’re comfortable. In school, they can’t listen to music in art class. Tom doesn’t agree with this rule. He thinks listening to music in art class is okay.
Tom also has to follow some rules at home. For example, if he wants to watch TV, he has to do his homework first. And he can’t go out with his friends on school nights, that is, from Monday to Thursday. He also has to clean his room every week. But he doesn’t have to take out the trash(垃圾).
请根据短文内容, 回答下列问题。Can the students arrive late at Tom’s school?
_______________________________________________________________Does Tom have to wear a uniform in school?
_______________________________________________________________Can Tom go out with his friends on Friday nights?
_______________________________________________________________What does Tom have to do every week?
_______________________________________________________________What doesn’t Tom have to do?
_______________________________________________________________
Mr. and Mrs. Black want to go to Beijing. But their dog Bobby can’t go there with them. So they leave him in a dog shop.
It is Sunday. Mr. and Mrs. Black get back home from Beijing very late at night. So they don’t get Bobby back. On Monday morning, Mr. Black brings the dog back in his car. When he gets home, he says to his wife, “Bobby barks all the time. I think he wants to tell me something. He doesn’t like the shop?”
Mrs. Black looks at the dog carefully (仔细地) and then says, “You’re quite right. He wants to tell you something. He wants to tell you that you bring the wrong (错误的) dog home.”
根据材料内容选择最佳答案。Mr. and Mrs. Black want to go to ______.
| A．Japan | B．China | C．Canada | D．the US |
Mr. and Mrs. Black leave Bobby in a dog shop because ______.
| A．they can’t take him |
| B．they want to sell him |
| C．the shop is not far |
| D．the shop is very good |
The dog gets back home on ______.
| A．Sunday evening | B．Sunday morning |
| C．Monday evening | D．Monday morning |
Mr. Black thinks the dog doesn’t like the shop because ______.
| A．his son tells him that |
| B．the dog barks all the time |
| C．his wife tells him that |
| D．the dog is quiet all the time |
下列哪项陈述是正确的？
| A．Mr. and Mrs. Black work in a shop. |
| B．Mr. Black brings the dog back by bike. |
| C．Mr. Black brings the wrong dog home. |
| D．Mr. and Mrs. Black get back home on Saturday. |
How do you go to school? Do you take a bus or ride a bike? For many students, it is easy to get to school. But for some children in one small village in Hunan, it is very difficult. There is no road (路) between the village and the school. The children have to climb down ladders (爬下梯子) to get to school.
Yu Xinxin is an 8-year-old girl. She climbs the ladders every day. “My parents are good at it and they tell me how to do it, and now I don’t think too much about how high it is,” she says.
It is hard for the villagers to get in and out of the village, too. Their dream is to have a road.
根据材料内容选择最佳答案。For the students in the small village, it is ______ to get to school.
| A．fun | B．boring |
| C．easy | D．difficult |
The students in the small village ______ to get to school.
| A．cross a river | B．cross a bridge |
| C．go on a ropeway | D．climb down ladders |
划线单词“they”指代的是“______”。
| A．Yu Xinxin’s teachers | B．Yu Xinxin’s classmates |
| C．Yu Xinxin’s parents | D．Yu Xinxin’s sisters |
划线单词“high”的中文意思是“_______”。
| A．重的 | B．高的 | C．宽的 | D．直的 |
下列哪项陈述是正确的？
| A．Yu Xinxin is seven years old. |
| B．Yu Xinxin’s parents can climb ladders. |
| C．The villagers don’t want to have a road. |
| D．It is easy for the villagers to get out of the village. |
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