unit5meeting yourancestors人教版选修8复习课程.ppt

1、Unit 5Meeting your ancestors,alternative interrupt acute assume significance significant dizzy,somehow delete academy applaud applause accelerate,arrest starvation starve accuracy accurate messy mess analysis analyses analyse analytic(al),analyst,regardless of,at most,cut up,fed up with,look ahead,d

2、ate back (to),concentrate on,search for,take turns to do sth,cant/couldnt help doing,alternative,alternatives,had no alternative but to,3assume vt假定；设想 回归课本P38So we think it is reasonable to assume they lived in these caves，regardless of the cold. 所以我们有理由认为他们不顾严寒，就住在这些洞穴里。 归纳拓展（1）assume sb/sth to be

3、 假定/假设某人/某事为 assume that 假定/假设 it is assumed that 被认为 (2) assumption n. 假定；假设 make an assumption that 认为；假定 On the assumption that 假定 (3) assuming that 假设/假定,1. But when it comes to medicine, I had it was important to always be honest with my patients. 但是当提到医学时，我以前认为如实告诉病人是非常重要的。 2. It is generally

4、that stress is caused by too much work. 一般认为，紧张时工作过重所致。 3. that it is true , what should we do now? 假定那是真的，我们现在该怎么办？ 4. A lot of people make the that poverty only exists in the Third World. 许多人认为贫困仅仅存在于第三世界。,assumed,assumed,Assuming,assumption,attention,arrested,get arrested,were under arrest,arrest

5、ed,significant,significance,significance,is,of great significance,注意： regardless of 强调“不认为重要”；从而不加以考虑或重视，而despite和in spite of 有“尽管但是”之意 regardless of 后可接whether, what引导的从句，而 in spite of 和despite 后不可接从句。 eg: Regardless of whether he is right or wrong, we have to follow his decisions. 不论他是对还是错，我们必须遵守他

6、的决定。,regardless of,regardless of,regardless of,Despite,dating back to/dating from,dates back to,dates back to/from,If only,If only,If only,when,was talking away,when,was about to,when,had hardly,现在完成进行时 形式：have (has)+ been+ 现在分词 用法：表示某个动作从过去某一时间开始一直延续到现在,并有可能继续下去；但有时也可用于这个动作刚刚结束时。 eg: 1. I have been

7、 sitting here all afternoon. 我在这儿坐了一下午了。 2. How long has it been raining? 雨下了多久了? 3. They have been fighting for independence since 1960s. 他们从60年代以来一直为独立而斗争。,本单元语法动词的时态,1.MrLi,swimmingfor3hours,andhisson,anhourago.,A.hasbeen,started,B.havestarted,hasstarted,C.started,started,D.Hasstarted,hasstarted,

8、1.MrLi,swimmingfor3hours,andhisson,anhourago.,A.hasbeen,started,B.havestarted,hasstarted,C.started,started,D.Hasstarted,hasstarted,1. Im sure Andrew will win the first prize in the final. I think so. He _ for it for months. A. is preparing B. was preparing C. had been preparing D. has been preparing

9、,答案：D,2. I have got a headache. No wonder. You_ in front of that computer too long. A. work B. are working C. have been working D. worked 答案：C,答案：D,5. Hi, Tracy，you look pale. I am tired. I _ the living room all day. A. painted B. had painted C. have been painting D. have painted,答案：C,9. Now that she is out of job, Lucy _ going back to school，but she hasnt decided yet. A. had cons