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1、Unit 4 Life on MarsIntegrated skills & Study skills一、根据句意及中、英文提示完成单词1. This kind of bike is easy to ride, but theres a_(劣势).2. Whats the_(百分率) of people dying of this disease every year?3. Some people believe that_(外星人) have visited the Earth.4. They are making a_(调查) of the pressure of students.5.
2、There are not enough people willing to take the_(the possibility of something bad happening).答案：1. disadvantage2. percentage3. aliens4. survey5. risk二、选择所给单词的适当形式填空human, crowd, advantage, spacecraft, harmful1. Our_are so small that they cant carry lots of people to Mars.2. We think our Earth will b
3、e more_in the future.3. We all know there are lots of_of living on Mars, so we wont move out of the Earth to Mars.4. Without air or water, _cant survive.5. Polluted air does_to our health. Its necessary to keep air fresh and clean.答案：1. spacecraft2. crowded3. disadvantages4. humans5. harm三、用括号中所给动词或
4、短语的适当形式填空1. There will be little space for people_(stand) in the future, will there?2. Reading in the sun_(do) harm to your eyes.3. Eddie always worries about_(not have) food to eat.4. Its hard to imagine_(live) in a place where there are no cars.5. -Did you go to the farm to visit your grandparents
5、 yesterday? -No, we didnt. It_(put) off because of an unexpected guest.答案：1. to stand2. does3. not having4. living5. was put四、单项选择( ) 1. Sixty percent of the teachers_now living around the school.A. isB. areC. hasD. have( ) 2. -Its dangerous to drive after drinking.-Thats true. It can increase the_o
6、f traffic accidents.A. advantageB. stressC. safetyD. risk( ) 3. The birthday party of last night_the song Happy Birthday to You.A. starts inB. started withC. started inD. starts with( ) 4. -Jim, would you please tidy up your room by yourself? _, you are no longer a child.-All right, Im coming.A. Fir
7、st of allB. After allC. As a resultD. For example( ) 5. -What are they talking about?-They are talking about the greatest inventions_have made a big difference to our daily life.A. whichB. whoC. thatD. where答案：1-5 BDBBC五、完成句子1. 一些人可能会因为生活在那儿而生病。Some people might_there.2. 我不知道这件事是否值得冒险。I am not_.3. 你
8、应该对这些学生宽容一点儿。毕竟他们还都是孩子。You should be easy on these students. _, they are kids.4. 我们原以为他看见老虎不会害怕。We thought that he_the tiger.5. 我想知道是否会有许多人愿意移居到火星上去。I wonder if_Mars.答案：1. get ill from living2. aware whether it is worth the risk3. After all4. was not afraid of seeing5. there will be many people will
9、ing to move to六、根据短文内容及首字母提示，填写所缺单词From far out in space, the Earth looks like a blue ball. Since water c_1_three-fourths of the Earths surface, blue is the colour we see most. The Earth is shaped like a ball. It is about 25, 000 m_2_around! It would take more than a year to walk around the whole pl
10、anet. A s_3_can fly around the widest part of the Earth in only 90 minutes.Even though spacecraft have travelled to the Moon, people cannot visit the Moon without wearing special s_4_. The Moon has no a_5_or water. Plants and animals cant live there, either. American a_6_landed on the Moon in 1969.
11、After that, there were more trips to the Moon. They brought back some r_7_from the Moon, which scientists are still studying.The Sun is the closest star to our Earth. The star is a hot ball of burning gases. The Sun looks very big b_8_it is so close. But in fact many faraway stars are much b_9_than the Sun. The burning gases from the Sun are so hot that they w_10_the Earth from millions of miles away!1. _2. _3. _4. _5. _6. _7. _8. _9. _10. _答案：1. covers2. miles3. spacecraft4. spacesuits5. air6. astronauts7. rocks8. because9. bigger10. warm