九年级英语Unit7 Section A 3a-4c.ppt

含有情态动词的主动句变为被动句时，谓语动词部分改为“情态动词+be+及物动词的过去分词”。 We can write Letters can be written letters in English. in English by us. 1. You must clean your bedroom every day. Your bedroom must be cleaned every day . 2. Parents should encourage teenagers to do social work for their community. Teenagers ______________________ _____________________________ . 5. Parents should give teenagers chances to make their own decisions. Teenagers _____________________ ________________________ . 4b Fill in the blanks with the  correct forms of the words in  brackets. Should teenagers __________(ask) to move out when they start working? In many Western countries, teenagers ____________(allow) to move out at eighteen. Their parents believe that they should ____________(educate) to take care of themselves from a young age. This way, when they _______(start) working they can manage their own lives. However, in most Asian societies, it is not common for teenagers to ________(move) out. Chinese parents believe that it is better for children to live with parents who can _____(take) care of them. But the young should then look after their parents as they get older. That is why many Chinese adults ________(continue) to live with their parents. 4c You and your friend are starting an English club. Make a list of rules about what should and should not be allowed. 类似用法的动词还有： forget to do 忘记要去做某事 forget doing 忘记做过某事 remember to do 记得还没做的事情 remember doing 记得已经做过的事情 try to do 尽力做某事 try doing 尝试做某事 mean to do 打算做 mean doing 意味着 stop?doing?sth. 停止做某事 stop?to?do?sth.? 停下来去做别的事 知识链接 1)．单项填空 — You were brave enough to express yourself at the meeting. — Well, in fact, now I regret _____ like that. A. say　　 B. to say C. said D. saying 2)．根据汉语意思完成句子 ( 每空一词 ) 我很抱歉要打扰你，但我别无选择。 I re