题目内容
15．---_________？---He is fine．（ ）
| A． | .How are you | B． | .How is he | C． | Who is he | D． | ． |
分析 --他怎么样？
--他很好．
解答 答案：B．考查交际用语．句意"--他怎么样？--他很好．"，A你好吗？B他怎么样？C他是谁？结合语境"他很好"，可以应该问他怎么样？答案是B．其它不符合．
点评 考查交际用语，在日常学习中要从实际情景交际中多练习，掌握一些习惯用语．结合语境，分析选项，选择正确的回答，完成练习．
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5．It may be difficult to imagine by the year 2100，we will live on Mars．Our own planet，the Earth is becoming more and more （75）A and polluted．Luckily，we can start again and build a better world on Mars．Here is what life will be like．
Firstly，（76）D should be much better．Spaceships can travel at half the speed of light．It might take us two or three days to get to Mars．
Secondly，humans need food，water and air to live．Scientists should be able to develop plants that can be grown on Mars．These plants will （77）B the food and the air that we need．
There is a problem for us to live on Mars．Mars makes us much lighter than the Earth does．This will be dangerous because we could easily jump too high and fly slowly away into space．To prevent this，humans on Mars have to wear special shoes to make themselves（78）D
Life on mars will be better than that on the Earth （79）C．People will have more space．Living in a large building with 10bedrooms is highly possible．Many people believe that robots will do most of our work．
However，life on Mars may not be better than that on the Earth today．Food will not be the same meals will probably be in the form of pills and will not be as delicious as they are today．（80）B，space travel will make many people feel ill．The spaceship will travel fast but the journey to mars will probably be very uncomfortable．
Firstly，（76）D should be much better．Spaceships can travel at half the speed of light．It might take us two or three days to get to Mars．
Secondly，humans need food，water and air to live．Scientists should be able to develop plants that can be grown on Mars．These plants will （77）B the food and the air that we need．
There is a problem for us to live on Mars．Mars makes us much lighter than the Earth does．This will be dangerous because we could easily jump too high and fly slowly away into space．To prevent this，humans on Mars have to wear special shoes to make themselves（78）D
Life on mars will be better than that on the Earth （79）C．People will have more space．Living in a large building with 10bedrooms is highly possible．Many people believe that robots will do most of our work．
However，life on Mars may not be better than that on the Earth today．Food will not be the same meals will probably be in the form of pills and will not be as delicious as they are today．（80）B，space travel will make many people feel ill．The spaceship will travel fast but the journey to mars will probably be very uncomfortable．
| 75．A） crowded | B） modern | C） developed | D） serious |
| 76．A） dressing | B） eating | C） living | D） transporting |
| 77．A） destroy | B） produce | C） refuse | D） support |
| 78．A） quicker | B） prettier | C） lighter | D） heavier |
| 79．A） all the way | B） in this way | C） in many ways | D） by the way |
| 80．A） However | B） Besides | C） Nowadays | D） Immediately． |