9B Unit 4 Reading 1

1、9B Unit 4 Reading 1Hainan Middle School by EagleRead and Answer What may happen to humans by the year 2100? Humans may live on the planet Mars. Why? Its becoming more and more_ （拥挤的）（拥挤的）and_ （被污染）（被污染） because of the rapid increase in _. .because the _ is _ _.pollutedcrowdedpopulationpopulationincr

2、easingrapidly It is hoped that people could start all over again and build a better world on Mars. What is it hoped? MarsBy the year 2100, the spacecraft travel at the speed of _. It would take only _minutes. But it would be _. Can we move to Mars?At the moment, our spacecraft are too slowto carry l

3、arge number of _ to Mars.It would take _. passagersmonthslight20uncomfortable So far, nobody knows whether there would be enough water or o_on Mars. Scientists are now sure whether plants could grow on Mars. Food would most probably be in the form of p_and would not be so t_. xygen ills Can we solve

4、 the problem of food, water and air?asty Yes. Because the gravity on Mars only about three e_ (3/8/8 )of that on Earth. Humans have to wear s_ boots that are s_ designed to prevent themselves from f_off into space. ighths pecial pecially loatingWill gravity be a big problem then?Life on Mars will be

5、 better than that on Earth in many ways. have more space have more time to relax no schools have a computer connected to an interplanetary network and e-tecchersinteresting and challengingNo. At present, our spacecraft are too slow to carry large numbers of people to Mars.这架子太高了，我触摸不到。too.to. 太.而不能.

6、 1.Can spacecraft carry large numbers of people to Mars now?The shelf is too high for me to reach.The shelf is so high that I cant reach it. 2) large numbers ofa large number ofa number of ； ；the number of很多人讲汉语。很多人讲汉语。Large numbers of people speak Chinese.(1)China has _ people.(2) _ the population

7、of china is 1.3 million.(3) _ my friends came to my birthday party.a (large) number of The number of A number of=1)光以光以300,000,000 米每米每(per)秒的速度传播秒的速度传播.汽车正高速行驶。汽车正高速行驶。我们要全速前进。我们要全速前进。The light travels at the speed of 300,000,000 meters per second.The cars are going at high speed.We should move at

8、full speed.at the speed of() No.The gravity on Mars is only about three-eighths of that on Earth.3.Is the gravity on Mars the same as that on Earth?分数构成口诀： 分子基数词， 分母序数词，分子大于一, 分母加S.1/9 1/4 2/3 1/25/8 3/4a quarter a halfthree quartersone-ninthtwo-thirdsfive-eighthsin the form of . 以.的形式呈现这篇文章是以日记的形式写成的。This article _.was written in the form of a diary这些气球是以动物的形式呈现。These balloons _.are in the form of animals 6.Compared with life on Earth, life on Mars will be better in many ways. 与我们的那条路相比，这条路繁忙得多。与我们的那条路相比，这条路繁忙得多。_ _