课件20张PPT。9B Unit 4 Life on MarsGrammar一、用介词短语把状语从句换成简单句 when 所引导的时间状语从句
1. She started to learn drawing when she was seven.
She started to learn drawing________________ .
2.Neil Armstrong received his student pilot 's licence
when he was 16.
Neil Armstrong received his student pilot 's licence
_______________
at the age of seven
at the age of 16
because 引导的原因状语从句3.He could not go to the party because he had
too much homework.
He could not go to the party because of too
much homework .
4.People might float in space because the
gravity is low.
People might float in space _________________
_________________.
because of the low gravity if 所引导的条件状语从句5.He could not solve this problem if he has no help.
He could not solve this problem _____________ .
6.Humans cannot svrvive if there is no food, water or oxygen.
Humans cannot svrvive ______________________ .
without helpwithout food, water or oxygen
用介词短语把状语从句换成简单句
1.“when+从句”转换成___________
2.“because +从句”转换成 _________
3.“if 的否定句”转换成 __________at the age of …because of … withoutExercise1.Neil Armstrong took his first flight when he was only six. ( at the age of )
_______________________________________.
2.Yuri Gagarin became the first man to go into outer space at the age of 27. ( when )
______________________.
Neil Armstrong took his first flight at the age of six
when he was 27Yuri Gagarin became the first man to go into outer space3.People might move to another planet in the future because the population on the earth is increasing rapidly. (because of )
_______________________________________
_____________________________.
4.It would be funny to play football on Mars because of the low gravity. (because)
______________________________________
_____________________.It would be funny to play football on Mars because the gravity is low People might move to another planet in the futurebecause of the rapid increase in population on the Earth5.If there is no fresh food ,meals will not be as tasty as they are today. ( without)
_______________________________________
___________________.
6.Without special boots , you cannot walk on Mars. ( if …… not )
_______________________________________
____________.
Meals will not be as tasty as they are today without fresh foodYou cannot walk on Mars if you do not wear special boots二、用介词把宾语从句换成简单句1. I am sure that the concert tickets will be expensive.
___________________________________
______________ .
2.Are they sure that space travel will be very fast?
______________________________________
______ ?I am sure about the high price for the concert tickets
Are they sure about the fast speed of space
travel3.The smell of the pills reminds them that food on the earth is tasty.
____________________________________________________________________________
4.The photos remind me that I travelled to the UK five years ago.
______________________________________________________The smell of the pills reminds them of the tasty
food on the earthThe photos remind me of my trip to the UK five years ago5.Are you certain that Tom is satisfied with the plan ?
_____________________________________
____________ ?
Are you certain about Tom' s satisfaction
with the planbe sure that … = be sure about / ofremind sb that … = remind sb of sth be certain that … = be certain about 1.Are you aware how far Mars is away from the sun ?
Are you aware_________________________
____________ (distance)?
2.Are scientists in agreement that living on Mars would be possible for humans in the future?
Do scientists agree _______________________
___________________________ (possibility)?be aware of 知道 意识到agree with of the distance between Mars and the sunbe in agreement意见一致with the possibility of living on Mars for humans in the future3.Do they think that the low gravity on Mars might be a problem?
Have they thought _______________________
_______________________ ( problem ) ?
4.Are you aware what transport could be like on Mars?
Are you aware _________________________
( transport )?think aboutbe aware of 知道 意识到about the problem of the low gravity on Marsof the transport on Mars5.I wonder how many people would like to move to Mars.
I wonder ______________________________
___________________________ .( number )
6.I think people should know that life on Mars would be different from that on the Earth.
I think people should know _______________
________________________________________ ( differences ). wonder about 想知道 / 对…感到奇怪
wonder at 表示惊讶 wonder about 表示怀疑
between life on Mars and that on the Earth the differencesabout the number of people who would like to move to Mars三、用介词把定语从句换成简单句1.I prefer to stay on a hotel room which has a sea view.
I prefer to stay on a hotel room with a sea view.
2.People might live in houses which have huge comfortable rooms.
_______________________________________
_______________ .
People might live in houses with huge
comfortable rooms3.On Mars you might see people who wear special boots.
On Mars you might see people in special boots.
4.The man who wears a blue shirt is our English teacher.
______________________________________
The man in a blue shirt is our English teacher.C1 Simon is writing about Mars. Rewrite the defining relative clauses in simple sentences with the preposition with or in.1.Mars is a planet that has an environment similar to that of the Earth.
2.Astronauts who wear space suits and helmets might stay on Mars for hours.
3.It is difficult to breathe on a planet that has much thinner air than that on the Earth.
4.On Mars there might be people who carry air tanks on their backs. with in with withC2 Simon is interested in stories about aliens. He even writes to aliens. Replace each of th underlined parts in his letter with another expression.Dear aliens,
Humans are thinking about moving to another
planet ( 1 )because the pollution on the Earth is
very serious. Many people do not doubt ( 2 )that
life on Mars would be very interesting, but I am
not sure. We could not play football on mars ( 3 )
because of the low gravity .Life would be boring
for me ( 4 ) if I could not play football . because of the serious pollution on the Earthbecause the gravity is low without playing football the interesting life on Mars about doubt about / of 怀疑Maybe this problem could be solved by building
indoor playgrounds ( 5 ) which have the same
football fields as those on the Earth.
By the way,would strangers be welcome ? I
hope to hear from you soon.
fields as those on the Earth.
with the same football1.Recite the key phrases and expressions in the lesson.
2. Review the grammar in the lesson.
3. Finish off the written exercises in the workbook.