It was July 1976. An unmanned spaceship, Viking One, had arrived at Mars. On July 20th, the spaceship　　. Part of it continued toward a landing on the planet. It fell　　through the late afternoon Mars’ sky.

Forty kilometers above the planet, the thin　　began to slow its fall. Six kilometers above the planet a big parachute(降落傘)opened. The landing craft fell more slowly. Then, three rocket engines　　. And the landing craft set down　　on the surface. 　　in the Viking One Lander immediately sent a message to the earth. It said, “I am here. I am down safely. I am beginning my work. ”

The message　　at the speed of light. It took twenty minutes to reach the earth, more than three hundred and twenty million kilometers　　. Scientists and engineers at the control center　　.

Moments later, television receiver in the control center began to　　the first picture from Viking One. People at the center could see the feet of the landing craft sitting firmly on the　11　soil of Mars. Those pictures were our first　　look at the planet. They showed a red surface, full of rocks, with no sign of　　. It was our first look at a planet that is full of surprises, mysteries and promise. Viking One was launched toward Mars in August, 1975. The spaceship had two　　: an orbiter(軌道飛行器)and a lander(著陸器). The orbiter would circle　　Mars. It would take pictures of Mars’ surface. It would　　the atmosphere.

The　　would go down to the surface. It would carry　　to dig up and study soil and　　.

It also would report about any evidence of life on the planet. The lander would send this　　to the orbiter and then back to the earth.

1.A. separated　　　　　　 B. appeared

C. workedD. started

2. A. correctly　　B. slowly　　C. quickly　　D. directly

3. A. airB. universe

C. spaceD. atmosphere

4.A. firedB. fellC. openedD. floated

5. A. heavilyB. softly

C. suddenlyD. immediately

6. A. A computerB. A rocket

C. A pilotD. An astronaut

7.A. spreadB. traveledC. shotD. moved

8. A. farB. longC. distantD. away

9.A. shoutedB. watched

C. cheeredD. welcomed

10. A. makeB. takeC. showD. search

11. A. redB. brownC. grayD. black

12.A. carefulB. closeC. realD. clear

13. A. menB. lifeC. treesD. air

14.A. partsB. rocketsC. enginesD. centers

15. A. throughB. towardsC. overD. around

16. A. enterB. examine

C. collectD. discover

17. A. orbiterB. lander

C. spaceshipD. rocket

18. A. engineersB. astronauts

C. parachutesD. instruments

19. A. surfaceB. treesC. rocksD. pictures

20.A. spaceshipB. rocket

C. landerD. information

 

1.A

2.C

3.D

4.A

5.B

6.A

7.B

8.D

9.C

10.C

11.A

12.B

13.B

14.A

15.D

16.B

17.B

18.D

19.C

20.D

【解析】

【文章大意】文章介紹了“海盜一號(hào)”無(wú)人宇宙飛船在火星登陸的情況。

1.選A。根據(jù)文章倒數(shù)第三段可知“海盜一號(hào)”宇宙飛船由orbiter和lander兩部分組成, 到了火星上空兩部分分離。

2.2】選C。根據(jù)常識(shí)判斷宇宙飛船應(yīng)該在飛行時(shí)是很快的, 在遇到阻力時(shí)才會(huì)減速, 這也與后面飛行減緩后的“slowly”相對(duì)應(yīng)。

3.3】選D。thin可以修飾air和atmosphere, 但是只有atmosphere符合語(yǔ)境, 火星的大氣減慢它的飛行, 而且與后文也一致。

4.4】選A。rocket的作用就是通過(guò)發(fā)射把lander送到火星上, 著陸時(shí)需要對(duì)地面的反推力才不至于著陸太猛。

5.5】選B。因?yàn)榍懊嫠龅母鞣N措施, 如降落傘、火箭發(fā)動(dòng)機(jī)等, 所以是輕輕著陸。

6.6】選A�！昂１I一號(hào)”是無(wú)人載飛船, 所以只能通過(guò)電腦發(fā)送信息說(shuō)其在工作。

7.7】選B。根據(jù)上下文, message以光速“傳播”, spread“擴(kuò)散”; shoot“發(fā)射”; move“移動(dòng)”。

8.8】選D。表示距離時(shí), 如果有具體的數(shù)字, 后面應(yīng)是away。

9.9】選C�；鹦堑顷懗晒�, 人們歡呼起來(lái), shout“大喊”; watch“看”; welcome“歡迎”。

10.0】選C。在屏幕上show“顯示”發(fā)送回來(lái)的圖片, 其他三項(xiàng)意思不符。

11.1】選A�；鹦巧系耐寥朗羌t色的, 所以后面第二句提到紅色的火星表面。

12.2】選B。這些照片是在火星上拍攝的, 所以是close look“近看”, real不修飾look。

13.3】選B。根據(jù)常識(shí)可知, 火星上沒(méi)有生命的跡象, 更沒(méi)有樹(shù)和人。

14.4】選A。宇宙飛船有兩部分, 由下一句話可得知答案。

15.5】選D。circle around Mars環(huán)繞火星飛行。

16.6】選B。examine指“檢驗(yàn)”。enter“進(jìn)入”, collect“收集”, discover“發(fā)現(xiàn)”都不合適。

17.7】選B。由上文可知, 宇宙飛船分兩部分, 前面介紹了orbiter, 這里介紹lander。

18.8】選D。在火星上, “海盜一號(hào)”只能通過(guò)一些科學(xué)儀器對(duì)火星上的土壤和巖石進(jìn)行檢驗(yàn)。

19.9】選C。由前文中“full of rocks”可知答案。

20.20】選D。著陸器把在火星上得到的信息傳給軌道飛行器, 然后傳到地球上來(lái)。

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