_______ the fact that three quarters of the earth’s surface is covered with water, we can say that it is a ________ planet.

_______ the fact that three quarters of the earth’s surface is covered with water, we can say that it is a ________ planet.

1. A.
   Given; water-covering
2. B.
   having been given; water-covered
3. C.
   Considering; water-covered
4. D.
   To consider; water-to-cover

It was a winter afternoon. Some friends and I were eating at a restaurant and talking. We talked and talked and soon       became the topic. Suddenly I hit upon an idea. “Wouldn’t it be fun to go       ? Others go in winter, but why couldn’t we?      , we could be healthier if we did. ” I told them about this, and they all said it was a good idea      . Early the next morning, we four were standing at the bus stop, with bags in our hands,       for a bus to take us to the       . The sky was clear; the sun was shining. But it was very cold all the same.       our heavy overcoats were not enough to keep us warm. We all felt we should go back, but no one wanted to speak out.

We soon reached the sands. There was       there, but we were not discouraged. Instead we were       that we were the only ones that dared to challenge the weather.       we changed our clothes quickly. But things were not going so       . The freezing sea wind was blowing. We felt very cold and trembled all over. At       we made up our minds to go into the water. We put our feet in first       to take them back very quickly. The water was unbelievably cold. Then I suggested we all jump in       . We all went back ten steps. I gave the       , and we all rushed forward and jumped in. I shall never forget the moment I was in the water. I was up       and rushed again to the shore.       it was with my friends. We put on our clothes as quickly as possible.

On the way back home, we talked about this unforgettable       . The four of us did not       school for the following three days. We all suffered a lot       a very bad cold. But we thought it was all worth it.

1.A. film         B. music          C. sports        D. play

2.A. swimming    B. skating         C. skiing         D. camping

3.A. Specially     B. Besides         C. Really        D. Clearly

4.A. indeed       B. fully           C. certainly      D. truly

5.A. looking      B. searching       C. waiting       D. asking

6.A. river        B. lake            C. pool         D. sands

7.A. Even        B. Yet             C. But         D. Just

8.A. somebody    B. nobody         C. everybody    D. anybody

9.A. excited      B. happy           C. proud       D. lonely

10.A. So          B. But             C. Still        D. Yet

11.A. wrong       B. right            C. bad         D. smooth

12.A. first         B. all              C. last         D. once

13.A. just         B. then             C. only        D. but

14.A. one by one   B. one after another   C. separately    D. at the same time

15.A. message     B. order            C. mark        D. information

16.A. slowly      B. nervously         C. late         D. immediately

17.A. Nor        B. And             C. So          D. Or

18.A. idea        B. experiment       C. chance       D. experience

19.A. attend       B. reach           C. enter         D. go

20.A. by         B. with            C. from          D. of

I recently heard a story about a famous research scientist who had made several very important medical breakthroughs. What set him so far apart from others?

He1.that, in his opinion, it all came from an2.from his mother that happened when he was about 2 years old. He had been trying to3.a bottle of milk from the refrigerator when he lost his 4.on the slippery(光滑的) bottle and it 5., making its contents pouring all over the kitchen floor.

When his mother came into the kitchen, instead of6.at him, giving him a lecture, or punishing him, she said: “Robert, what an(a)7.and wonderful mess you have made! I have8.seen such a huge pool of milk. Well, the damage has already been done. Would you like to9.down and play in the milk for a few10.before we clean it up?”

Indeed, he did. After a few minutes, his mother said: “You know, Robert,11.you make a mess like this, you have to clean it up at last and restore everything to its proper12.. So, how would you like to do that? We could use a sponge, a towel, or a mop. Which do you13.?” He chose the sponge and together they14.up the milk.

His mother then said: “You know, what happened just now is a15.experiment in how effectively to carry a big milk bottle with two tiny hands. Let’s16.out in the back yard and fill the bottle with water and see if you can17.a way to carry it without dropping it.” The little boy18.that if he held the bottle at the top near the lip with both hands, he could carry it without dropping it.

This scientist then19.that it was at that moment that he knew he didn’t need to be afraid to make20..

Wouldn’t it be great if all parents would respond the way Robert’s mother responded to him?

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 (大气层) 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 re 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 and ?

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．

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

       A．an earthquake                B．damages to cities

       C．an Earth explosion D．huge waves

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．

By giving the example of dinosaurs , the author tries to prove        ．

       A．animals could not live in the cold climate

       B．what happened 65 million years ago was an invented story

       C．the human beings will die out in 2094

       D．the Earth could be hit by other objects in space