[基础知识·夯实]
Ⅰ.单词拼写
根据汉语注释及首字母提示写出下列单词的正确形式。
1. With the changes in the world's c______， dinosaurs died, but many smaller animals lived on.
2. I often read of incidents of misunderstanding or conflict. I'm left p______.
3. He often says that he doesn't believe in any ________(宗教) and only believe in himself.
4. In old times people had a________ (理论) that the world was flat.
5. A familyfriendly________ (气氛) in this hotel makes travelers comfortable.
答案：1. climate 2. puzzled 3. religion 4. theory
5. atmosphere
Ⅱ. 选词填空
break out；give birth to；prevent...from；cheer up；watch out
1. We should________ the situation in that country ________becoming worse.
2. The other day my pet cat________ a new little cat.
3. A conflict________ between the two countries.
4. His friends________as soon as they knew he had recovered from illness.
5. ________for walkers and other bicyclists, and always use your lights in dark conditions.
答案：1. prevent; from 2. gave birth to 3. broke out
4. cheered up 5. Watch out
Ⅲ.单句语法填空
1. Let the boys play in the wood；it is not ______(harm) to them.
