1 . 用所给的短语的正确形式完成下列句子。

die out,       in search of,       take part in,       belong to,       pay attention to,       rely on,      come into being,       stand for,       burst into laughter,        protect…from…

1. When did the world _________?
2. Seeing the funny picture the whole class _________.
3. Laws should be passed to protect giant pandas. Otherwise they will _________.
4. If you want to make more progress in study, you should _________ more _________ what your teachers say in class.
5. The house _________ my grandfather but after his death our family moved in it.
6. Many farmers leave their hometown for cities _________ a happy life.
7. I know I can _________ you to solve this problem.
8. What can people do to _________ themselves _________ heart disease?
9. He didn’t _________ the sports meeting because of his illness.
10. Red color _________ happiness and good luck in China.