(共32张PPT)
Unit 4 Growing up
Grammar
学习目标
1. 了解并掌握时间状语从句的结构。
2. 掌握并能使用引导时间状语从句的连词。
自 学 自 检
新课导入
1.感到筋疲力尽
2.他职业生涯中的最佳时刻
3.在一场对抗亚特兰大鹰队的比赛中
4.当我在站台等待的时候,我遇见了彼得。
feel tired out
the best moment in his career
in a game against the Atlanta Hawks
I met Peter while I was waiting at the bus stop.
自 学 自 检
新课导入
5.直到昨天晚上,这场雨才停。
6.无论何时我想要就能看书。
7.我一离开屋子,天就开始下雨。
The rain did not stop till yesterday evening.
I can read books whenever I want to.
It began to rain as soon as I left the house.
新课导入
Revision
Change the following into English.
上初中阶段,Spud 参加了学校篮球队的选拔。
While _________ junior high, Spud _______________ the school basketball team.
2. 他接下来成了足球队的领队。
He __________________ leader of the football team.
3. Lily更加刻苦地练习并使教练改变了主意。
Lily _____________________ and got the coach
______________________.
attending
tried out for
went on to become
practised even harder
to change his mind
新课导入
4. 没有大学愿意邀请他去打篮球,仅仅 因为他的身高。
No university _____________________ basketball only
____________ his height.
5. 在他毕业以后,他被迫在另一个篮球联盟效力。
_______ he _________, he ___________________ in another
basketball league.
6. 通过努力,他证明个头和体型真的不重要—如果你决不放弃,
几乎没有什么不能做到的。
_________ hard work, he _______ that _________________
really do not ________, —you can do almost anything if you
never ____________.
would invite him to play
because of
After graduated was forced to
play
Through
proved
size and body type
matter
give up
新课讲解
A Using before, after, when and while
Before means earlier than a certain time.
e.g. He remained there for about a year
before the NBA took notice of him.
After means later than a certain time.
e.g. After he graduated, he was forced to
play in another basketball league.
Grammar
新课讲解
When means at or during a certain time.
e.g. When he finally got the chance, he
scored 20 points in his first game.
While means during a certain time.
e.g. While (he was) attending junior high,
Spud tried out for the school team.
新课讲解
One of David’s days
David is writing in his diary about one of his days. Help him combine his sentences using before, after, when or while.
I go jogging every morning. Then I
have breakfast.
________________________________
I go jogging every morning before I have breakfast.
新课讲解
2. I practised playing basketball for
hours. I felt tired out.
_______________________________
_______________________________
3. I met Peter. I was waiting at the bus
stop.
_______________________________
After I practised playing basketball for hours, I felt tired out.
I met Peter while I was waiting at the bus stop.
新课讲解
4. I was watching TV. I received a call
from my uncle.
_________________________________
_________________________________
_________________________________
_________________________________
5. I was ready to go to bed. My father
came back from work.
_________________________________
_________________________________
While I was watching TV, I received a call from my uncle.
I was ready to go to bed when my father came back from work.
I was watching TV when I received a call from my uncle.
新课讲解
e.g. You’ve been happy since I first met
you.
B Using since, till and until
Since means from a certain time. The verb in the main clause is often used in the present perfect tense.
Till and until mean up to a certain time. Until can be placed at the beginning or in the middle of the sentence, but till is usually used in the middle of the sentence.
新课讲解
e.g. Spud remained in another basketball
league for about a year till/ until the
NBA took notice of him.
Until his dream came true, Spud never
gave up.
When we use the structure not…until, we cannot use till instead of until.
e.g. Don’t wake me up until you finish
your work.
新课讲解
David loves basketball
Here are more sentences from David’s diary entry. Complete his sentences with since, till or until.
I have been crazy about playing
basketball ________ I was a little boy.
2. The weather has been awful this week.
The rain did not stop _______
yesterday evening, so we could not
practise basketball for several days.
since
until
新课讲解
3. We played basketball in the
playground this afternoon _________
it was getting dark.
4. It is the first time we have played
basketball _________ Monday. We
enjoyed ourselves very much.
until/ till
since
新课讲解
5. I waited for 20 minutes at the bus stop
_________ the bus arrived.
6. It is Friday evening. I will not go to
bed __________ I finish watching my
favourite TV programme.
until/ till
until
新课讲解
e.g. It began to rain as soon as I left the
house.
C Using as soon as and whenever
As soon as means when something happens, or a short time after something has happened.
Whenever means at any time.
e.g. I can read books whenever I want to.
新课讲解
More about basketball
Simon is writing about David’s love for basketball. Help Simon complete his sentences with as soon as or whenever.
David often goes to play basketball
_______________ school is over.
2. He watches the NBA ____________
there is a game on TV.
as soon as
whenever
新课讲解
3. ________________ he talks about
basketball, he gets excited.
4. ________________ he learnt that the
NBA players would come to China, he
tried his best to get a ticket.
Whenever
As soon as
课堂小结
一、before, after, when, while, till, until, as soon as, whenever引导的时间状语从句中,如果主从句都是将来发生的动作,主句用一般将来时,从句用一般现在时。
e.g. She won’t go home until she
finishes her work.
语法小结
语法小结
二、since(自从……)常与现在完成时
连用。
e.g. John has worked in this factory
since 1998.
三、while(当……时)引导的时间状语
从句通常要用进行时。
e.g. Someone knocked on the door while
I was watching TV.
语法小结
四、before, after, since, till, until还可作
介词,后接时间名词。
e.g. before 9 a.m. till/until today
since 2009 after lunch
五、当主句和从句的主语是同一个人时
还可用:before/ after/ when/ while
doing sth.
e.g. You’d better not listen to music while
doing your homework.
语法小结
六、as soon as 引导时间状语,表示
“一……就……”
e.g. It began to rain as soon as I left
there.
注意:hardly (scarcely, rarely)…when / before, no sooner…than相当于as soon as之意。主句用过去完成时,从句用一般过去时。当hardly, scarcely, rarely和no sooner位于句首时,主句应用倒装语序。
语法小结
e.g. He had no sooner arrived home
than he was asked to start on
another journey.
他刚到家,就被邀请开始另一旅程。
七、till和until通常可以互换,但当“直
到”这词用于句首或与not连用时只
能用until。
e.g. They didn’t come back until it was
dark.
当堂小练
Yao Ming was born in Shanghai in 1980. He got his first basketball (1)_______ he was only four years old, but he did not become serious about basketball (2) ________ he was 12.
when
until
Exercises
David is writing about Yao Ming, his favourite basketball star. Help him complete his article with the correct conjunctions you have learnt in this unit.
当堂小练
Yao joined the Houston Rockets in 2002 and became the best Chinese player to have ever played in the NBA. (3) _____________ he went to the USA, he knew little English, but he quickly learnt the language. The best moment in his career was in 2004—he scored 41 points in a game against the Atlanta Hawks.
Before/When
当堂小练
When Yao Ming was living in the USA, he returned to China (4)__________ he was needed. He took part in the Olympics in 2004 and in 2008 as one of the Chinese athletes. (5) ___________ he ended his basketball career, Yao has done a lot of charity work, especially for poor Chinese teenagers.
whenever
Since/After
当堂小练
It was quiet ________ those big
trucks started coming through the
town.
A. before B. after C. until D. unless
2. It seemed only seconds ________ the
boy finished washing his face.
A. when B. before C. after D. even if
Choose the best answer.
当堂小练
3. I recognized you ________ I saw you
at the airport.
A. the moment B. while
C. after D. once
4. He was about to go to bed ________
the doorbell rang.
A. while B. as C. before D. when
当堂小练
5. Several weeks had gone by _____ I
realized the painting was missing.
A. as B. before C. since D. when
6. It _____ long before we ____ the result
of the experiment.
A. will not be; will know
B. is; will know C. will not be; know
D. is; know
当堂小练
7. _____ got into the room _____ the telephone rang.
A. He hardly had; then
B. Hardly had he; when
C. He had not; then
D. Not had he; when
8. No sooner had he finished his talk _____ he was surrounded by the workers.
A. as B. then C. than D. when
1. Review the use of the conjunctions in this lesson.
2. Prepare for the next lesson.
课后作业