人教版高二英语必修 必修5 unit 3 Life in the future单元测试(附答案)(3)

53. A． Also B． But C． Then D． Again

54. A． in B． under C． beside D． over

55. A．lift B． underground C． plane D． bus

四、阅读理解(共20小题，每题2分，满分40分)

阅读下列短文，从每题所给的四个选项(A、B、C、D)中，选出最佳选项。

A

The year is 2094. It has been announced that a comet (彗星) is heading towards the Earth. Most of it will miss our planet, but two pieces will probably hit the southern half of the Earth.

On 17 July , a piece four kilometers wide enters the Earth’s atmosphere with a massive explosion. About half of the piece is destroyed, but the remaining part hits the South Atlantic at 200 times the speed of sound. The sea boils and a huge hole is made in the sea bed. Huge waves are created and spread outwards from the hole. The wall of water, a kilometer high, rushes towards southern Africa at 800 kilometers an hour. Cities on the African coast are totally destroyed and millions of people are drowned.

Before the waves reach South America, the second piece of the comet lands in Argentina. Earthquakes and volcanoes are set off in the Andes Mountains. The shock waves move north into California and all around the Pacific Ocean. The cities of Los Angeles, San Francisco and Tokyo are completely destroyed by earthquakes. Millions of people in the southern half of the earth are already dead, but the north won’t escape for long. Because of the explosions, the sun is hidden by clouds of dust, temperatures around the world fall to almost zero . Crops are ruined. The sun won’t

be seen again for many years. Wars break out as countries fight for food. A year later, no more than 10 million people remain alive.

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 piece of object in space. The dinosaurs couldn’t live through the cold climate that followed and they died out. Will we meet the same end?

56．What is mainly described in the passage?

A．A historic discovery. B．An event of imagination.

C．A research on space. D．A scientific adventure.

57．When the first piece hits the South Atlantic, it causes .

A．an earthquake B．damages to cities

C．an Earth explosion D．huge waves

58．Why can’t the northern half of the earth escape for long?

A．Because the land is covered with water

B．Because the light and heat from the sun can not reach the earth.

C．Because people there can not live at the temperature of zero.

D．Because wars break out among countries .

搜索“diyifanwen.net”或“第一范文网”即可找到本站免费阅读全部范文。收藏本站方便下次阅读，第一范文网，提供最新人文社科人教版高二英语必修 必修5 unit 3 Life in the future单元测试(附答案)(3)全文阅读和word下载服务。