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1、Unit 4 Astronomy .品句填词(用所给词的适当形式或根据语境写一个合适的词)1Scientists are not sure about the existence (exist) of water on Mars, so whether humans can live on it isnt proved. 2The puzzled (puzzle) expression on his face suggested that he was not able to work out the difficult problem. 3He also said the governmen
2、t must be willing to spend extra money to prevent people from starving.4The driver lost control of the car on the slippery road and crashed into a truck.5Technology and innovation are the building blocks of a globally (global) competitive 21st century economy.6I do believe what children eat is funda
3、mental to their health, growth and development.7More seriously, it can release harmful (harm) chemicals into the soil and water when dumped, or into the air when burned.8At all times, you should watch out for fake websites offering downloads in exchange for your credit card number. 9They found the c
4、rashed aircraft had been smashed to pieces, killing all 4 aboard, 3 of whom were foreigners.10The festival of this year has been a great success, unlike (like) the year before when it rained nonstop.单句改错(含本单元的词汇和语法)1Schoolwork burden will encourage students to develop when it is appropriate, and wil
5、l be harmful students and useless to education when it is extreme.2I felt so upset and I was . I didnt move until the young security man asked me several times. 3The current global imbalance has been / for decades for deeplyrooted reasons, many of which simply reflect commonsense reality.4At the dri
6、ving school different people at different ages have the same goal and under the instruction of the coach the trainees took to drive.5Unless we get more funding well be prevented finishing our experimental programme.6His father continued to encourage him but also made it clear he did not have to play
7、 football if he didnt want to. 7There is so much rain on the island that its annual rainfall reaches as as sixty inches.8. Youll succeed time because you are always working hard.9The use of computers as a medium of communication has given birth a new language phenomenoncyber language. 10. He will co
8、me to the conference has excited every one of us; we have been looking forward to seeing him for years.课文语法填空At the very beginning the earth was just a cloud of dust after the “Big Bang”. Then the dust combined into a solid globe 1moving (move) around the sun. The earth became so violent 2that it wa
9、s not clear whether the shape would last or not. The earth exploded loudly with fire and rock. They were 3in time to produce many things, 4which were to make the earths atmosphere. As the earth cooled down, water began to appear on its surface. It allowed the earth 5to_dissolve (dissolve) harmful ga
10、ses. Then life began to develop.The first extremely small plants multiplied and 6filled (fill) the first oceans and seas with oxygen. This encouraged the later 7development (develop) of early shellfish and fish. Land animals such as insects, reptiles and dinosaurs appeared 8after green plants appear
11、ed. Small clever animals spread all over the earth. But they are putting too much carbon dioxide into the atmosphere, which prevents heat 9from escaping from the earth into space. Whether life will continue on the earth for millions of years 10to come (come) will depend on whether this problem can be solved.
