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译林版九年级英语下册 Unit4 Life on Mars 语法填空专项练习
共120分
一、用括号内单词的正确形式填空（100分）
1.Some people believe that humans could live on the planet Mars by the year 2100. Our Earth is becoming more and more ________ (crowd) and polluted.
2.Because of the rapid ________ (increase) in population, our planet is getting worse.
3.It is hoped that people could start all over again and build a ________ (good) world on Mars.
4.At present, our spacecraft are too slow ________ (carry) large numbers of passengers to Mars.
5.The journey to Mars ________ (take) months at present.
6.With the ________ (develop) of technology, things will change.
7.By 2100, the journey might only take about 20 minutes in spacecraft that travel at the speed of light! It sounds ________ (amaze).
8.However, the spacecraft would travel so fast that the journey might be quite ________ (comfort).
9.Many people would feel ________ (ill) during the fast journey.
10.Humans cannot ________ (survival) without water, oxygen or food.
11.So far, nobody ________ (know) whether there would be enough water on Mars.
12.________ (science) are not sure whether plants could grow on Mars.
13.Food would most probably be in the form of pills and would not be so ________ (taste).
14.Gravity could be another ________ (difficult) for humans living on Mars.
15.The gravity on Mars is only about three - eighths of that on the Earth. It is much ________ (light) than Earth's gravity.
16.People would have to wear boots that are ________ (special) designed to prevent themselves from floating off into space.
17.________ (compare) with life on the Earth, life on Mars would be better in some ways.
18.People would have much ________ (much) space on Mars.
19.They might live in houses with huge ________ (comfort) rooms.
20.Robots would do most of the work so that humans could have more time ________ (relax).
21.There would probably be no ________ (tradition) schools on Mars.
22.Every student would have a computer at home ________ (connect) to an interplanetary network.
23.They would study at online schools with "e - ________ (teach)".
24.Life on Mars would be ________ (interest) as well as challenging.
25.We need to wear special ________ (helmet) to breathe on Mars.
26.An air tank is ________ (use) for storing oxygen in space.
27.________ (dry) food is easy to carry and store during space travel.
28.A power ________ (pack) can provide energy for our space tools.
29.A sleeping bag can keep us warm in the ________ (freeze) environment of Mars.
30.Putting up a ________ (tent) is necessary for temporary living in space.
31.The ________ (pollute) on Earth is getting more serious.
32.Factories ________ (pollution) the air and water every day.
33.The ________ (rapid) developing technology makes space travel possible.
34.The population increases ________ (rapid) every year.
35.There are a large number of ________ (passenger) on every spacecraft to Mars.
36.The ________ (comfort) seats on the new spacecraft make the journey better.
37.This kind of food is ________ (taste) than that on Earth.
38.It is ________ (possible) for humans to live on Mars now, but maybe in the future.
39.There is a ________ (possible) that humans will move to Mars one day.
40.We should reach an ________ (agree) on the plan of living on Mars.
41.Some ________ (strange) from other planets might live on Mars.
42.We use ________ (electricity) devices to communicate on Mars.
43.The journey to Mars is full of ________ (risky).
44.We have to ________ (careful) plan every step of the space trip.
45.The ________ (distance) between the Earth and Mars is very long.
46.We can ________ (communication) with each other through interplanetary network.
47.There are many kinds of ________ (entertain) on Mars.
48.We can buy different ________ (goods) in space shops.
49.Don't worry. After all, it is our ________ (choose) to live on Mars or not.
50.The ________ (advantage) of living on Mars are more than the disadvantages.
51.We must ________ (aware) of the dangers of living on Mars.
52.Many ________ (science) experiments have been done on Mars.
53.The ________ (circle) around Mars is very special.
54.What's the ________ (percent) of oxygen on Mars
55.We need to ________ (recycle) most of our things on Mars.
56.The ________ (grow) of plants on Mars is still a question.
57.We hope to get some ________ (agree) from the scientists.
58.The ________ (special) boots can help us walk on Mars.
59.Life on Mars is ________ (extreme) different from that on Earth.
60.The ________ (pollute) water is harmful to our health.
61.We should take action to reduce ________ (pollute).
62.The ________ (crowd) streets make people feel stressed.
63.We need ________ (much) space to live on Mars.
64.The spacecraft travels at an ________ (amaze) speed.
65.I feel ________ (bore) with the long and slow space journey.
66.The ________ (develop) of space technology is very fast.
67.It is ________ (difficulty) for us to live on Mars now.
68.We can ________ (sure) solve the problems of living on Mars.
69.The ________ (taste) food makes us happy.
70.The ________ (specially) designed houses are very comfortable.
71.We can ________ (comparison) life on Mars with life on Earth.
72.The ________ (compare) shows many differences.
73.There are many ________ (advantage) of living on Mars.
74.We must ________ (consider) all the possibilities.
75.The ________ (consider) is very important for our future plan.
76.We need ________ (electric) to power our machines.
77.The ________ (electricity) car is very popular on Mars.
78.We can have different kinds of ________ (entertain) in space.
79.The ________ (entertain) programs are very interesting.
80.We must ________ (care) about our future life.
81.The ________ (care) plan can help us avoid many problems.
82.We should ________ (hope) for the best.
83.The ________ (hope) future is waiting for us on Mars.
84.We need ________ (practice) more before living on Mars.
85.The ________ (practice) skills are very important.
86.We can ________ (real) realize our dream of living on Mars.
87.The ________ (real) of living on Mars is coming.
88.We must ________ (prepare) well for the journey.
89.The ________ (prepare) work takes a long time.
90.We should ________ (active) take part in space projects.
91.The ________ (active) of space exploration is very meaningful.
92.We can ________ (create) a better world on Mars.
93.The ________ (create) life on Mars is very colorful.
94.We must ________ (depend) on ourselves on Mars.
95.The ________ (depend) life makes us strong.
96.We need ________ (confident) to live on Mars.
97.We should be ________ (confidence) in ourselves.
98.We can ________ (success) in living on Mars one day.
99.The ________ (succeed) of space travel is a big step for humans.
100.Life on Mars will be a ________ (wonder) experience for all of us.
二、语法填空短文（20分）
阅读下面短文，在空白处填入1个适当的单词或括号内单词的正确形式。
Some people believe that humans could live on the planet Mars by the year 2100. Our Earth is becoming more and more crowded and polluted 1. ________ the rapid increase in population. It is hoped that people could start all over again and build a 2. ________ (good) world on Mars.
At present, our spacecraft are too slow 3. ________ (carry) large numbers of passengers to Mars—it would take months. With the development of technology, by the year 2100, the journey might only take about 20 minutes in spacecraft 4. ________ travel at the speed of light! However, the spacecraft would travel so fast 5. ________ the journey to Mars might be quite uncomfortable.
Humans cannot survive 6. ________ water, oxygen or food. So far, nobody knows whether there would be enough water or oxygen on Mars for people there. Moreover, scientists are not sure whether plants could grow on Mars. Food would most 7. ________ (probable) be in the form of pills and would not be so tasty.
Gravity could be another problem. The gravity on Mars is only about three - eighths of that on the Earth. People would have to wear boots that are 8. ________ (special) designed to prevent themselves from floating off into space.
Compared with life on the Earth, life on Mars would be better in some ways. People would have more space. They might live in houses with huge comfortable rooms. Also, robots would do most of their work so 9. ________ they could have more time to relax. There would probably be no schools on Mars. Every student would have a computer at home connected to an interplanetary network. They would study at online schools with "e - teachers". Life on Mars would be 10. ________ (interest) as well as challenging.
答案
一、单词正确形式填空。
1.crowded
2.increase
3.better
4.to carry
5.takes
6.development
7.amazing
8.uncomfortable
9.ill
10.survive
11.knows
12.Scientists
13.tasty
14.difficulty
15.lighter
16.specially
pared
18.more
fortable
20.to relax
21.traditional
22.connected
23.teachers
24.interesting
25.helmets
26.useful
27.Dried
28.pack
29.freezing
30.tent
31.pollution
32.pollute
33.rapidly
34.rapidly
35.passengers
fortable
37.tastier
38.impossible
39.possibility
40.agreement
41.strangers
42.electronic
43.risks
44.carefully
45.distance
municate
47.entertainment
48.goods
49.choice
50.advantages
51.be aware
52.scientific
53.circle
54.percentage
55.recycle
56.growth
57.agreement
58.special
59.extremely
60.polluted
61.pollution
62.crowded
63.more
64.amazing
65.bored
66.development
67.difficult
68.surely
69.tasty
70.specially
71.compare
72.comparison
73.advantages
74.consider
75.consideration
76.electricity
77.electric
78.entertainment
79.entertaining
80.care
81.careful
82.hope
83.hopeful
84.to practice
85.practical
86.really
87.reality
88.prepare
89.preparation
90.actively
91.activity
92.create
93.creative
94.depend
95.independent
96.confidence
97.confident
98.succeed
99.success
100.wonderful
二、语法填空短文。
1.because of
2.better
3.to carry
4.that/which
5.that
6.without
7.probably
8.specially
9.that
10.interesting
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