八年级下册英语unit9reading的语法

八年级下册英语unit9reading的语法
八年级下册英语unit9reading的语法

八年级下册英语unit9reading的语法
Unit 9
Useful Expression
hear of 听说
hear from 收到…的消息/来信
take a ride 兜风
end up 结束
argue with sb.与某人争吵
roller coaster 过山车
a flight attendant 一个机组乘务员
in fact 事实上
all over the world 全世界
think about 考虑
think of 想起；认为
rather than 宁可；而不是
neither…nor… 既不…也不…
three quarters of 四分之三
for example 举个例子
such as 例如
on the one hand,… on the other hand,….一方面…,另一方面…
be asleep 睡着（状态）
fall asleep 睡着（动作）
Key sentences
Have you ever been to a water park?你曾经去过水上公园吗?
No,I haven’t.不,我没有.
Me neither.= Neither/Nor have I.我也没有.
这是一个否定的省略句.它的结构是“ Neither/Nor + be动词/助动词/情态动词+主语”.而用在肯定的省略句中时要使用so,它的结构是“So+ be动词/助动词/情态动词”.如：
-- I paid 20 yuan for this book.
-- So did I.
The roller coaster is themed with Disney characters.
过山车是以迪斯尼的人物为主题的.
The boats take different routes,but they all end up in the same place.
虽然船的路线不同,但它们都停泊在同一个地方.
It’s just so much fun in Disneyland.
迪斯尼乐园里有如此之多的乐趣.
It was because I could speak English that I got the job.
只是因为我能说英语,我得到了这份工作.
More than three quarters of the population are Chinese.
超过四分之三的人是中国人.
This is because the island is so close to the equator.So you can choose to go whenever you like.就因为这个岛是如此接近赤道.所以只要你愿意你任何时候都可以去.
Grammar
现在完成时
用法：动作到现在已经完成或刚刚完成;
过去发生或已完成的动作对现在造成的结果和影响；
过去开始一直持续到现在的动作或状态.
基本结构：have/has + V.过去分词
时间状语：already,yet,just,ever,never,once,twice,so far,ever since,for a long time,for + 一段时间,since + 过去的时间点/过去时的从句,等.
注意事项:
A.现在完成时是现在的时态,重点表达目前的结果和状态;
B.表示动作从过去开始持续到现在用for + 时间段,since +点时间连用.对for与since短语提问用how long.
C.现在完成时从不与when引起的疑问句联用.
D.have been to：去过…
have gone to：去了…
have been in：呆在…
E.短暂性动词变为延续性动词：
buy --- have had borrow --- have kept
join --- have been in / have been a member of
become --- have been a member make friends --- have been friends
die --- have been dead get to know --- have known
come/go to do --- have done catch a cold --- have had a cold
begin/start to do --- have done
begin / start --- have been on
enter / come / arrive / get to / reach --- have been in/at
go / leave for / set off / set out --- have been away from
since,for在现在完成（进行）时中的用法差异
since 后接过去的时间点或一般过去时的从句.
He has been an English teacher since three years ago.
We have known each other since we came to study in this university.
for后接时间段
He has lived here for three years.
现在完成时与一般过去时的区别
现在完成时表示过去发生的某一动作对现在造成的影响和结果,强调的是现在的情况,所以它不能和表示过去的时间状语连用,如：yesterday,last night,three weeks ago,in 1990等.
而一般过去时只表示过去的动作或状态,和现在不发生关系,它可以和表示过去的时间状语连用.如：
He has lived here since 1992.1992年以来他一直住在这里.（他现在还住在这里）
He lived here in 1992.1992年他住在这里.（并不涉及他现在是否住在这里）