5. Which of the following statements is false?

　 A. The two thieves not only failed to steal things but also losttheir sweet potatoes.

　 B. Whenever they found mice, the people in the house would try to catch them.

　 C. The two thieves ran away at once, because they thought the woman had seen them.

　 D. The man let the woman go home for a rope, which would　 be used for catching the thieves.

答案：D　 指导：见第二段“The rein broke and the wolikqn CalTle 　homeforarope”因此她取绳子不是为抓小偷。

Passage 8

　　 Radioactivity is dangerous.　 It may cause skin burns, it may destory good tissues(组织) and it may cause illness that could be passed on to our children and grandchildren. In case of exposure (暴露) it may even cause death.

　　 In the early days of radioactivity, scientists did not realize these dangers. Marie and Pierre Curie, after having worked for a while with radioactive materials, noticed that their fingers were reddened and swollen(红肿) and the skin was peeling off. Henry Becquerel carried a small tube with radium in it in his waistcoat pocket, and was surprised to find a bum on his chest. Other early workers also reported burns and harm of dif- ferent kinds.

The strange fact is that it can harm without musing pain, which is the waming signal we expect from harmfulness. Pain makes up pull back our hands from a fire or a hot object, but a person carrying radioactive materials had no way of telling whether he is touching something too "hot"for .safety. Besides, the "burns"or other harm- fulness that radioactivity produces may not appear for wceks. A person may have been hurt without knowing it for .some time.

4. "____________"is the best title for this passage.

　 A. Two Clever Thieves

　 B. Terrible Mice

　 C. Hit the MaA by a Fluke

　 D. A Clever Couple

答案：C　 指导：“Hitamarkbyafluke"意为侥幸中的。文中主妇说的话都指老鼠，但正好与两个小偷的情况一样，令他们产生误会，以致没偷成东西。

3. When the woman said, "How they look like the two of last 　night! "

　 A. she referred to the two thieves

　 B. she meant nothing

　 C. she said it on purpose

　 D. she referred to the mice

答案：D　 指导：见第二段：“She picked out two which looked mice”可见她指的是两只老鼠。

2. From the last paragraph, we know that

　 A. the two thieves were famous selling sweet potatoes

　 B. the woman recognized the two thieves

　 C. the woman pretended to know nothing about the two thieves and made fun of them

　 D. the two thieves didn't know that they were not found at all

答案：D　 指导：这两个贼不知道没人发觉他们(偷窃的行为)。亦即他们以为有人发觉他们偷东西了，所以就仓惶逃跑了。

1. The two thieves failed to steal anything from the house because___________.

　 A. they were found out

　 B. they were frightened by what they had heard in the house

　 C. they didn't work together well with each other

　 D. mice stopped them from doing so

答案：B　 指导：见第一段，这两个贼误以为夫妇俩是在说他们。

4. If　 asked, Tern　 Would　 probably　 say: "I　 risk　 danger becattse

　 A. I wanted to help the police

　 B. I knew my friend was innocent

　 C. I know the cook was a murderer

　 D. I wasn't to dismiss the criminal's plan

答案：B　 指导：Tom冒险的目的是因为他知道朋友Jay是无辜的(innocent)。

Passage 7

　　 Two thieves came to a house to steal something. They dug a hole in the wall of the house.

　　 There lived many mice in the house. The woman in the moonlight(月光) saw a mouse crawl(爬行) into the house. "Look! In conies one, "she said to the man in thehouse. The thief was so frightened that he hurriedly crawled out of the house and said to the one waiting outside, "She found me when I was just in. "But the thief outside didn't believe him, so he said, "Let us two try to crawl into the house together. "At that time two mice happened to crawl into the house, too. The woman saw the mice and shouted, "In come two, catch them!" The two thieves were terribly frightened. The man in the house said, "You saw them come in but where are they? I will catch them tonight. "The two thieves started running away at once.

The two thieves waited to make it dear whether they had been found or not the night before. The next day they acted as men selling sweet potatoes and came before the house.　 The man and the woman were ploughing in their fields. The rein (缰绳) broke and the woman came home for a rope. She saw two men selling sweet potatoes and wanted to buy some. She picked out two which looked like mice. At the time the man couldn't wait for her any longer in the fields and he ran back from the fields to hurry her up. The woman showed the sweet potatoes to the man and said," How they look like the two of last night. "The man said, "I asked you to fetch a rope, why don't hurry for it? 'The two thieves ran away very quickly without their sweet potatoes.

3. Tom's plan was to ________

　 A. help his friend slip away

　 B. pretend to go along with the plan of the criminal

　 C. find out Jay was the criminal

　 D. pretend to bring the true criminals to justice

答案：B　 指导：Tom将计就计，诱使坏人就范。

2. Paragraph 5 mainly describes

　 A. Tom's hope to catch thc intru{,ier (闯入者)

　 B. the unknown sleeping figure in Jay's bed

　 C. the danger Tom faced in Jay's empty bed

　 D. what Tom did to carry out his plan

答案：D　 指导：为帮助好友Jay，Tom想出了一个计谋，该段是其实施的情况。

3. If you go to visit the canyon you'd better go to________.

　　 A. the South Rim　　　　 B. the North Rim

　 　C. the bottom　　　　　　 I). the top of a tree

答案： A　 指导：从第四段的首句：The view from the South Rim of the Grand Canyon is the best．可知：大峡谷南端的景象的最美的，若你要观光，最好到theSouthRim．故A项为正确选项。

Passage 6

Feeling hopeless and sick ;it heart, Tom turned away. For a quick moment his eyes met those of the cook, and he saw there a light of such hatred(憎恨) and　 fear that no words could describe.　　　

The cook moved quietly closer. He whispered to Tom in a rough voice. "Don't be too clever.　 Mark my words.　 And he went away.

　　　 Tom's thoughts did not delay going for long on the cook and his words.　 His friend was in trouble, how could he help him? He decided to slip (溜走) away as soon as possihle in search of information that would clear Jay of all doubts and bring the true criminal to justice (法院).

　　　 lie has noticed a piece of old sailcloth (帆布) lying on the ship floor. With this and a length of stringily-T-)he made a package which looked very nuch like the one the police had seized(逮捕). His plan was to step to the shore and to hand it over just as the cook ha{,t ordered Jay to, hoping in this way to learn the truth about the criminals' activities.　 He could then persuade the police of his friend's innocence(无罪).

　　　 By now it was dark. Taking the blankets out of Jay's empty bed. Tom piled them up in his extra in the shatpe of a sleeping figure. How real it lookked　 With the blanket pulled up high around the figure's head he could almost believe he saw it breathing.　 Pleased with this, 'Ibm moved quietly to the door.

　　　 He was about to open it when he felt it secretly turned to other way. Someone was outside and about to come in. Was his plan failed? Slipping quickly back behind the door as it opened. Tom waited.

It was tile cook who was leaning(倚靠) forward now over the figure in the bed. His aim swung(挥舞)up. For an instant (立即)a long knife cut into it.

l. The main cause of Tom's worry was that be__________?

　 A. failed to save bis friend out of trouble

　 B. knew the truth about tide criminals

　 C. knew his friend was in trouble

　 D. felt such hatred and fear for the cook

答案：C　 指导：文中第三段第二句话有交代。Tom的朋友Jay被陷害，处于麻烦之中，因此Tom很担心。

2. From the passage we can know that the_______of the can yon is different at different time.

　　 A. length　　　　　　　　 B. scene

　 C. width　　　　　　　　 　D. height

答案： B　 指导：文章第三段首句意：大峡谷在一天中的不同时间，不同的季节和天气里，看上去都是不一样的，由此可见，大峡谷的景象是多变的，在各个时期是不同的，故B项正确。