牛津译林版九年级上册Unit5分层精讲精练
【语法专项】
语法考点梳理:原因状语从句
1.引导词:原因状语从句通常由because, since, as引导,用来表示原因。
He didn’t come to school because he was ill.
As it is raining, we shall not go the zoo.
Since you can’t answer the question, I’ll ask someone else.
2.区分
①because表示直接原因,语气最强。because引导的原因状语从句多放在主句之后。回答由why提出的问题,只能用because
【注意】
▲because和so不能同用在一个句子里。
▲because与because of 的区别:
because后只能接句子,而because of 后面只能接名词或名词短语,不能跟句子。
Because of the bad weather, we put off the sports meeting.
Because it rained yesterday, we put off the sports meeting.
②as和since语气较弱,一般用来表示明显的原因。由as和since引导的原因状语从句多放在句首。
Since he had no musical instruments then,he made music with common objects like stones and paper.
As he likes the sounds of nature,Tan uses them a lot in his music.
【拓展】
since 用于现在完成时,表示“自从”
(
①点时间(年份/her fifth birthday)
I have lived here since 1999.
) (
②
...ago (two years ago/five minutes ago )
I have lived here since two years ago.
)
(
③
时间状语从句(一般过去时句子)
I have lived here since I was born.
)结构:现在完成时+since
as用法总结
词性 用法 例句
介词 翻译成“作为”常用于work as /be famous/known as 等短语中 French is known as the most beautiful language in the world. 法语以世界上最美的语言著称。
连词 引导时间状从句,表示“当…的时候” My mother was cooking fish as I arrived home. 当我到家的时候,我妈妈正在做鱼。
连词 引导原因状从句,表示“因为...” As rain has fallen, the air is cooler. 因为下过雨,所以空气比较凉爽。
连词 引导让步状从句,表示“虽然...” Young as he is, he has been one of the most famous painters in our country. 虽然他还很年轻,但已经成为我们国家最有名的画家之一。
连词 引导方式状语从句,表示“以…方式” Do as the Romans do when in Rome. 入乡随俗
【as短语必背】
as well同样;也
such as例如
as good as 和...几乎一样;简直是
as far as I know 据我所知
as soon as 一...就...
as well as 连同;也;和...一样好
as long as 只要
as ...as possible 尽可能...
be famous as 作为...而著名
work as 从事...职业
as if 似乎;好像
语法考点专项练习(基础练习+中考真题)
Part1 基础练习
一、单项选择
1.—I’m really proud of my group ___________ we won the match by working together.
—How important the teamwork is!
A.but B.so C.because D.or
2.__________ we have made the promise, let’s keep to it and not give up easily.
A.Whether B.Unless C.Since D.Though
3.________ we are young, we shouldn’t be too afraid of making mistakes.
A.For B.Because
C.Since D.Because of
4.I don’t have to introduce her to you ________ you know the girl.
A.until B.unless C.since D.but
5.Jessica has visited many famous places _______ she came to live in China last year.
A.before B.since C.when D.for
6.— Your English is so good. How long have you learned English
—________ I was five years old.
A.Before B.Until C.Since D.When
7.—Have you been in Nanjing for a long time
—Yeah, ________ my parents came here.
A.for B.as C.when D.since
8.________ time went by, the weather got worse and worse.
A.While B.When C.Unless D.As
9.The students sing ________ they walk along the small river.
A.until B.as C.while D.unless
10.________ we got together during the Spring Festival of 2022, three Chinese astronauts were on duty in outer space.
A.Since B.If C.As D.Although
11.—Are you a “Liu Genghong’s Girl”
—No. Exercising like him is too hard for me, ________ it is good for my health.
A.even though B.so that C.as if D.ever since
12.You’d better fix the machine ________ I have told you. Otherwise, you may make more problems.
A.like B.when C.as D.for
13.__________ I know, Mr Smith will come to our school next month.
A.As long as B.As soon as C.As far as D.As much as
14.— Many people are worried about their health because of the COVID-19.
—You’d better not go to crowded places ________ you can protect yourself.
A.as far as B.so that C.as soon as D.as long as
15.— Excuse me, Miss Smith, could you tell me how to improve my spoken English
— OK. The best way is to practice _________.
as soon as possible B.as quickly as possible
C.as much as possible D. as many as possible
二、完成句子
1.由于他身体欠佳,我决定独自去那里。
__________ he was not feeling well, I ___________ __________ go there alone.
2.我们不能去野餐,因为正在下很大雨。
We can’t go for a picnic ___________________________.
3.既然汽车坏了,就什么都做不了了。
_____the car broke down, nothing_____________.
4.随着时间的流逝,越来越多的人爱上了网购。
________, more and more people ________ shopping online.
5.当他正在读书时,电话铃响了。
________ she was reading, the telephone rang。
6.他搬到这里已经五个月了。
It ____________________ five months since he moved here.
7.自从上次见到我们的小学同学以来,已经过了三年多的时间了。
It has been more than three years _____________ we last _____________ our primary school classmates.
8.因为吃的太多又不运动,他变得越来越胖了。
_______________________________________________________.
9.我对阳光镇很了解。四岁时随父母一起搬到了这里。从那以后就住在这里。
I know Sunshine Town very well. ________. I have lived here since then.
10.从上个月一起吃饭后我就没见过她。
____________________________________________________________
Part2 中考真题
一、单项选择
1.(2022·重庆·中考真题)They have been friends ________ they first met.
A.since B.while C.before D.after
2.(2022·江苏淮安·中考真题)We would like to buy electric cars ________ they produce less air pollution.
A.because B.so C.though D.but
3.(2022·辽宁沈阳·中考真题)I love going to school ________ everyone in my class is friendly.
A.before B.although C.because D.unless
4.(2022·内蒙古包头·中考真题)Many wild animals don’t have a safe place to live, ________ villages and farms are growing bigger and taking away their land.
A.because B.until C.although D.before
5.(2021·江苏无锡·中考真题)________ we’ve made the promise, let’s keep to it and not give up easily.
A.Whether B.Since C.Though D.Unless
6.(2020·辽宁大连·中考真题) He was so tired that he fell asleep ___he went to bed.
A.as if B.even though C.ever since D.as soon as
7.(2022·山东青岛·中考真题)As a policeman, Tom’s father is too busy to play with him __________ he expects to.
A.even though B.so that C.as soon as D.as long as
8.(2022·安徽·中考真题)You won’t fully experience the culture of a foreign country ________ you go there in person.
A.because B.unless C.as soon as D.as long as
9.(2021·辽宁营口·中考真题)We can get over the trouble ________ we depend on our own country.
A.as much as B.as far as C.as soon as D.as long as
10.(2021·湖北襄阳·中考真题)—When will you go to see your grandpa
—I’ll see him ________ I get off the plane. You know I miss him very much.
A.as soon as B.as long as C.as far as D.as easily as
二、完成句子
1.(2021·湖北荆州·中考真题)我还是个孩子的时候就有这些毛绒玩具了。(since)
I’ve had these soft toys ____________________________________________.
2.(2020·四川乐山·中考真题)由于虚拟现实科技,人们不必亲临其境即可游览国内外名胜。
____________of VR technology, people can ____________ places of interest both at home and abroad instead of going there in person.
3.(2021·山东滨州·中考真题)我们信任他,因为他从未让我们失望过。(let ... down)
________________________________________________________________
4.(2021·江苏扬州·中考真题)Tom买不起那把小提琴,因为太贵了。
________________________________________________________________________________
5.(2021·辽宁盘锦·中考真题)玛丽(Mary)自从小时候就有这个愿望吗?
_______________________________________________________________
参考答案:
Part1 基础练习
单项选择
1-5 CCCCB 6-10 CDDBC 11-15 ACCBC
二、完成句子
1.As decided to
2.because it’s raining hard
3. Since could be done
4.As time goes by fall in love with
5.When##While##As
6.has been
7.since saw
8.Because he eats too much but doesn’t exercise, he gets fatter and fatter.
9.I moved here with my parents when I was four years old
10.I have not met her since we had dinner together last month.
Part2 中考真题
一、单项选择
1-5 AACAB 6-10 DABDA
二、完成句子
1.since I was a child##since I was a kid
2.Because visit
3.We believe in him because he has never let us down.
4.Tom can’t afford the violin because it’s too expensive.
5.Has Mary had the wish since she was a kid