In July 1994 Jupiter, the largest planet in our solar system, was struck by 21 pieces of a comet (彗星). When the fragments (碎片) landed in the southern part of the giant planet, the explosions(爆炸) were watched by scientists here on the earth. But what if our own planet was hit by a comet?

　The year is 2094. It has been announced that a comet is heading towards the Earth. Most of it will miss our planet, but two fragments will probably hit the southern part of the Earth. The news has caused panic.

　On 17 July, a fragment, four kilometers wide, enters the Earth's atmosphere with a huge explosion. About half of the fragment is destroyed. But the major part survives and hits the South Atlantic at 200 times the speed of sound. The sea boils and an enormous(巨大的) wave is created and spreads. The wall of water rushes towards southern Africa at 800 kilometres an hour. Cities on the African coast are totally destroyed and millions of people are drowned. The wave moves into the Indian Ocean and heads towards Asia.

　Millions of people are already dead in the southern part of the Earth, but the north won't escape for long. Tons of broken pieces are thrown into the atmosphere by the explosions. As the sun is hidden by clouds of dust, temperatures around the world fall to almost zero. Crops are ruined. Wars break out as countries fight for food. A year later civilization has collapsed(崩溃). No more than 10 million people have survived.

　Could it really happen? In fact, it has already happened more than once in the history of the Earth. The dinosaurs were on the Earth for over 160 million years. Then 65 million years ago they suddenly disappeared. Many scientists believe that the Earth was hit by a space fragment. The dinosaurs couldn't survive in the cold climate that followed and they became extinct. Will we meet the same end?

1.Which of the following is NOT TRUE according to the author's description of the disaster in 2094?

A. The whole world becomes extremely cold

B. All the coastal cities in Africa are destroyed

C. The visit of the comet results in wars

D. The whole mankind becomes extinct

2.Why does the author mention dinosaurs at the end of the passage?

A. Because they could only live in the warm climate

B. Because their extinction indicates future disasters

C. Because they once dominated(控制) the earth

D. Because dinosaurs and humans never live in the same age

3. In writing the passage, the author intends to ______.

A. give an accurate description of the possible disaster in the future

B. prove that humans will sooner or later be destroyed

C. warn of a possible disaster in the future

D. tell the historical development of the Earth

4.It can be concluded that the passage is most probably part of a(n) ______.

A. article of popular science      B. news report

C. research paper                      D. horror story

 

Scientists have developed a new cancer drug. So far, they have tested it only in laboratory animals. The drug

is designed to enter and kill cancer cells, but not healthy cells.

　 First, the drug enters the cancer cells and stops their supply of blood. Then it releases poison to destroy the

cancer cells.

Researchers at the Massachusetts Institute of Technology(MIT) in Cambridge carried out the study. The results appeared in Nature magazine. A school report called the drug an “anticancer smart bomb”.

Ram Sasisekharan is a professor at MIT. He says that his team had to solve three problems. They had to find a way to destroy the blood vessels, then to prevent the growth of new ones. But they also needed the blood vessels to supply chemicals to _________.

So, the researchers designed a two-part “nanocell”. The cell is measured in nanometers(毫微米), or one thousand millionth of a meter.

The scientists say thay that it was small enough to pass through the blood vessels of the cancer, but it was too big to enter normal blood vessels. The surface of the nanocells also helped them to avoid natural defenses.

The scientists designed the cell as a balloon inside a balloon. They filled the outer part with a drug that caused the blood vessels to die. That cut off the blood supply and put the nanocells inside the cancer. Then, the nanocells slowly released drugs to kill the cancer cells.

The team says that the treatment killed the cancer and avoided healthy cells better than other treatments. Untreated mice with cancer survived for twenty days. The scientists say that mice with the best current treatments lived for thirty days. In this study, they say that eighty percent of the mice treated with the nanocells lived more than sixty-five days.

The scientists say that more studies are needed before the new drug can be tested in humans.

1. What’s the best title of the passage? (please answer within 10 words.)

 

________________________________________________________________________

2. Which sentence in the passage can be replaced by the following one?

　 Scientists haven’t tested the drug on humans, and only in lab.

　

　 ____________________________________________________________________________

3. Please fill in the blank in the fourth paragraph with proper words or phrases to complete the sentences. ( please answer within 10 words.)

 

　 ___________________________________________________________________________

4. Do you think cancer can be cured in the future? Why? (please answer within 30 words.)

________________________________________________________________________

5. Please translate the underlined sentence in the eighth paragraph into Chinese.

 

________________________________________________________________________

 

On Easter Day 1722,some European explorers found a lonely island in the middle of the Pacific Ocean. They 　1 it Easter Island. The explorers found that the island had good soil 　2 the 200 natives living there survived with little food. Even more 　3 , these people also lived among the ruins of what might have been a once great civilization. All that is left of it are around 800 giant stone statues 　4 human heads. They 　5 up to 270 tons and the tallest measures over 11 metres. The stone men face 　6 , rather than out to sea, and their eyes are focused upon the sky. They are all carved from 　7 volcanic rock (火山岩) and some have hats on their heads and eyes made from white coral. Since their 　8 , these huge stone men 　9 one of the greatest mysteries of all time. Who built them? Why did they do it? Some experts believe the stone men are 　10 to Inca stonework, and suggest the figures were created by people of Peruvian descent (血统). 　11 have even gone so far as to say that they came from outer space. The latest suggestion 　12 the idea that Easter Island represents one of the worst cases of resource abuse in human history. It is said that a small group of Asians settled on Easter Island 　13 between 400 and 700 AD. They developed a great civilization with huge forests and 　14 food. At the peak of their civilization, the people began to build the giant 　15 men. Why they did this is still 　16 but it is possible the figures represent the settlers’ gods or ancestors. 　17 the statues grew larger, the people’s lifestyles became more and more wasteful. The forest began to disappear, which 　18 all the animals dying out. 　19 couldn’t get food and were forced to eat other humans. Society began to 　20 and the islanders themselves finally destroyed the stone men.

1. A. said　　　　　　　　　　 B. were called　　　　　　　 C. named　　　　　　　　　　 D. spoke

2. A. and　　　　　　　　　　 B. but　　　　　　　　　　　　　 C. however　　　　　　　　　 D. still

3. A. surprise　　　　　　　 B. surprised　　　　　　　　 C. surprising　　　　　　　　 D. surprisingly

4. A. looking　　　　　　　　 B. resembling　　　　　　　 C. liking　　　　　　　　　　　 D. standing for

5. A. weigh　　　　　　　　　 B. lift　　　　　　　　　　　　　 C. get　　　　　　　　　　　　　 D. measure

6. A. forward　　　　　　　 B. outward　　　　　　　　　 C. onward　　　　　　　　　 D. inward

7. A. broken　　　　　　　　 B. soft　　　　　　　　　　　　 C. hard　　　　　　　　　　　　 D. burnt

8. A. looking　　　　　　　　 B. invention 　　　　　　　　 C. discovery　　　　　　　　 D. covering

9. A. have happened B. have led to C. have taken place　　　 D. have created

10. A. usual　　　　　　　　 B. common　　　　　　　　　 C. familiar　　　　　　　　　 D. similar

11. A. Another　　　　　　　 B. Other　　　　　　　　　　　 C. Others　　　　　　　　　　　　　 D. Many

12. A. is focused on B. is based on C. is depended on　　　　 D. is concentrated on

13. A. some day　　　　　 B. one day　　　　　　　　　 C. sometime　　　　　　　　 D. once

14. A. plenty of　　　　　　 B. number of　　　　　　　 C. much of　　　　　　　　　 D. amount of

15. A. clever　　　　　　　　 B. stone　　　　　　　　　　　 C. wooden　　　　　　　　　 D. iron

16. A. welcome　　　　　　 B. known　　　　　　　　　　　　　 C. unimportant　　　　　　 D. unknown

17. A. While　　　　　　　　 B. After　　　　　　　　　　　 C. With　　　　　　　　　　　 D. As

18. A. resulted in　　　　　 B. resulted from　　　　　 C. created　　　　　　　　　　 D. lay in

19. A. The islands B. The people C. The animals D. The Europeans

20. A. break out　　　　　 B. break in　　　　　　　　　 C. break into　　　　　　　　 D. break down