3.strategies　根据句意可知最好用复数。　

5.We often see the s　　?(标牌)of No Smoking in public places.　

答案：1.homeless　从后句“take his house away”可知他现在是homeless。　

itment　有不定冠词修饰，应用名词形式。　

4.Many students think that only Chinese,math and English are m　　?(主要的)subjects.　

3.The s　　(方法) that he came up with worked out fine.　

2.This volunteer work takes each of them several hours a week.So it is a major c　　?(奉献).　

(根据句意和提示完成单词。)　

1.He is h　　(无家可归的) because the flood take his house away.　

5.Being,is　动名词短语作主语应被看作单数形式。　

有备无患

(课前预习类训练)

●Preparation for new lessons 　

(新课预习)

4.repairing my bike　spend time doing sth.意思是“花时间做某事”。　

3.who/that wants　先行词是人且在从句中作主语，用who/that引导。　

2.homeless people　根据意思可将定语从句换成一个形容词。