8. Many people (责备、指责) this change on gases such as carbon dioxide.

答案：blame

9. Companies that (污染) China's ocean waters usually feel little pressure from the government.

答案：pollute

10. Having (分析) the results, Dr. Snow drew a conclusion that water had caused the disease.

答案：analysed

11.The army was well-trained and well-armed, and had little difficulty (战胜) their enemy.

答案： defeating

12. Fresh air and exercise (有助于) to good health.

答案：contribute

13. I can't carry the bucket if the (把手) is broken.

答案：handle

14. Ladies and gentlemen, I come here to (宣布) the winner of the competition.

答案：announce

15. She is kind-hearted. You shouldn't (拒绝) her offer.

答案： reject

三、翻译(根据中文提示完成句子)

1. (我需要把我的手表指针往前拨)。 It os 10 minutes slow.

答案：I need to put forward my watch

2. After the heated discussion, we (得出结论) that the experiment was sure to succeed.

答案： drew a conclusion