人教版八年级下册unite7 section B period 2 课件.pptVIP

3) 带to的动词不定式前用whether, 而 不用if 。如: Please tell us whether to go or stay here. 请告诉我们是走还是留。 They didn’t know whether to agree or keep silent. 他们不知道是该同意还是保持沉默。 4) whether可置于句首引导主语从句， 而if不能。如：　 Whether the meeting will be in Beijing is not known yet. 会议是否在北京举行还不得而知。 Whether he will be free is not certain. 他是否有时间不确定。 6. This happens to me all the time in the school library. all the time 为一个固定的短语，意为 “一直地”，在句中作状语用。 如： They were laughing all the time. It rained all the time. 7. Perhaps in the future I should try not to be so polite. try 意为“试，尝试”，作动词时常用于几 种结构: try to do sth.指 “尽力去做某 事”，强调竭尽全力，不强调成功与否； try sth.或try doing sth.分别指“尝试某 事物”或 “尝试着去做某事”，都不强调尽 力与否。 表示“尽力不做某事”，应该说 “try not to do sth.”如： We are going to try a new treatment. 我们打算尝试一种新的治疗方法。 He tried skiing but never liked it. 他尝试过滑雪，但是从来就不喜欢。 Could you try not to speak so fast? 你能不能尽量不要说话那么快？ 请根据汉语意思把句子补充完整。 1. 我点了一个汉堡包，但服务员却拿 来了一个热狗。 I________ a hamburger, but the waitress_____ me a hot dog. 2. 我们应该尽量做到不烦恼。 We should try______ be ________. ordered not to annoyed got 3. 我的理发师给我理了个糟糕的发式。 My_______ gave me a terrible _______. 4. 这支钢笔没法用，你可以再给我看 一支吗？ This pen doesn’t______. _____ you _____ showing me________ one? barber haircut work Would mind another 5. 我在学校图书馆总有这样的事发生。 This__________ to me_____________ in the school library. 6. 尼克，别穿这件衬衫好吗? 看上去太 旧了。 Nick, _____ you_____ not________ this shirt? It looks too old. 7. 对不起，我马上做。 I’m sorry. I’ll do it___________. happens all the time would mind wearing right away 8. 把你的电视音量调小些好吗? 太吵了。 Would you mind___________ your TV? It’s too noisy. 9. 好的，没问题。 OK, that’s____________. 10. 我洗完盘子你能帮我做作业吗？ Could you____ me____ my homework _____ I_____ doing the dishes? turning down no problem help with when finish 1. — It’s so hot inside. Would you mind _____the window? — Of course not. (2009山东滨州) A. open B. opening