Question

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 were watched by scientists here on 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 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. 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?
小題1:55.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

小題2:56.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 the earth

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

小題3:57.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

小題4:58.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

Answer 1

小題1:D
小題2:B
小題3:C
小題4:A

試題分析：本文是一篇科普類文章。文章講述了未來由于彗星撞擊地球可能會出現的災難，
小題1:D考查細節理解。根據文章的第四段中的As the sun is hidden by clouds of dust, temperatures around the world fall to almost zero. 可知A正確；根據第三段中的Cities on the African coast are totally destroyed and millions of people are drowned. 可知B正確；根據根據文章的第四段中的Crops are ruined. Wars break out as countries fight for food. 可知C正確；根據文章最后一段中的Will we meet the same end?可知，人類是否會滅絕沒有將清楚。故四個選項中D不正確。
小題2:B考查推理判斷。根據文章的最后兩句話The dinosaurs couldn't survive in the cold climate that followed and they became extinct. Will we meet the same end?可知，恐龍在那種寒冷的環境下會滅絕，人類未來也可能有同樣的遭遇。故選B。
小題3:C考查作者的寫作意圖。根據文章最后一段中的Could it really happen? In fact, it has already happened more than once in the history of the Earth. 和Will we meet the same end?可知，作者在給人類提出未來可能發生災難的警示。故選C。
小題4:A考查文章的出處。此處article of popular science大眾科學文章；news report新聞報道；research paper研究論文；horror story恐怖故事。根據文章的大意可知，是一篇大眾科學文章。故選A。