人教版（2019）必修第三册《Unit 4 Space Exploration》2022年同步练习卷（Reading and Thinking 同步课时作业）

一、填空

• 1．It wasn't difficult then to cross the

  （国界）．
  组卷：8引用：10难度：0.7

  解析

• 2．An Olympic gold medal can

  （带来，导致） untold riches for an athlete．
  组卷：6引用：7难度：0.5

  解析

• 3．They have come to the North Africa

  （怀着寻宝的希望）．
  组卷：1引用：6难度：0.7

  解析

• 4．Have the passengers gone

  （上船）？
  组卷：4引用：6难度：0.5

  解析

• 5．After he left， I just tried to

  （继续）as normal．
  组卷：3引用：6难度：0.7

  解析

一、填空

• 15．Susan's a very bright and

  （聪明的） woman who knows her own mind．
  组卷：14引用：11难度：0.6

  解析

二、语法填空阅读下面材料，在空白处填入适当的内容（1个单词）或括号内单词的正确形式。

• 16．The earth is the only planet that scientists are certain has life． What does the earth have that other planets in our solar system don't？ For one thing， the earth is just the right temperature． As （1）

  third planet from the sun， the earth seems to be just the right distance away． The planets that are closer to the sun are （2）

  （extreme） hot and their surfaces are baking in the sun． The farthest planets are frozen balls．
  When the earth developed， it（3）

  （cover） by many gases． The gases caused the earth （4）

  （be） hot． But something（5）

  （amaze） happened． The temperature was just right for thick clouds to form． It rained very hard for a long time． This gave the earth its oceans． Water made （6）

  possible for plants to grow． Then the plants created oxygen in the atmosphere， （7）

  is the gas that humans and animals breathe．
  Mars is the only planet in the solar system that seems to be anything like the earth． It is（8）

  （small） than the earth and it is quite a bit cooler． But it is not too cold for humans． The most unexpected sight on Mars is dried-up river beds． However， it is believed （9）

  Mars was once much wetter． Does this mean there could have been living things on Mars？ Scientists are not sure， but there （10）

  （be） no sign so far．
  组卷：8引用：6难度：0.5

  解析