新概念英语一册83-84课讲义

新概念英语一册 Lesson83-84课堂讲义

Part I 课堂重点

一 复习

现在完成时的句型转换练习

1 She has already had a holiday. 2 I have done my homework. 3 Lily has met Tom today. 4 They have gone to France. 5 Susan has heard the news.

6 I have stayed in Harbin for 7 years. 完成时使用时的注意事项

1. 现在完成时不能单独与准确过去时间连用

如yesterday(morning、afternoon),last(morning、afternoon), two days ago等

2. 现在完成时往往同表示不确定的过去时间状语连用

如before, recently, lately等

I haven't seen much of him recently (lately). We have seen that film before.

3. 现在完成时常常与某些频率副词及普通副词连用,

如ever, never, twice, already（肯定）, yet（否定，疑问）, just,等: Have you ever been to Beijing? I have never heard that news.

I have used this pen only three times. He has already bought that house. Have they found the missing child yet?

4. 现在完成时还往往可以同包括现在时间在内的时间状语连用,

如now, up to these few days/weeks/months/years, this week/month/year, so far等: Peter has written six books so far. 二 重点词汇

1 never adv.决不；从来没有

He never breaks his words. 他从不食言。

I have never been to Italy. 我从来没没去过意大利。 Never too old to learn. 活到老，学到老。 2 ever adv.曾经；永远

Have you ever been to Beijing? 你曾经去过北京吗？ 三 语法 Grammar

现在完成时的\未完成用法\

现在完成时的\未完成用法\指的是动作开始于过去某一时刻，一直延续到现在，且可能还要继续下去。用行为动词或状态动词（be动词）表示常与for（+时间段）,since（+时间点或

过去时的句子）连用.

Mary has been ill for three days. I have lived here since 1998.

注（超重要）：瞬间动词（buy,die,join,lose……）不能直接与for，since 连用。要改变动词。

1.have代替buy

My brother has had(不能用has bought) this bike for almost four years. 2、用keep或have代替borrow

I have kept(不能用have borrowed) the book for a few days. 3、用be替代become

How long has your sister been a teacher? 4、用have a cold代替catch a cold

Tom has had a cold since the day before yesterday. 常用瞬间动词变延续性动词表

buy---have begin/start---be on borrow/lend---keep leave/go---be away end/finish---be over open---be open close---be closed die---be dead come/arrive/get/reach/move---be in/at catch a cold---have a cold

join in the army---be in the army/be a soldier fall asleep---be asleep