牛津译林版九年级英语下册 Unit 4 Life on Mars Grammar 课件(共32张PPT)

(共32张PPT)
aware adj. 知道，意识到
e.g. Are you aware how far Mars is away
from the sun
circle vt. 围绕，将一圈起来
e.g. It takes Mars about two Earth years
to circle around the Sun once.
agreement n. 一致，同意
e.g. Are scientists in agreement that living
on Mars would be possible for humans
in the future
distance n. 距离，远处
e.g. Are you aware of the distance between
Mars and the sun
possibility n. 可能性
e.g. Do scientists agree about the
possibility of living on Mars
我们可以用介词短语把状语从句转换成简单句，我们可以用介词把宾语从句和定语从句转换成简单句。
We can rewrite some adverbial clauses
in simple sentences with at the age of,
because of and without.
A Using adverbial clauses or simple
sentences
转换时要注意时态和意思的一致性和准
确性。
Neil Armstrong received his student
pilot’s license when he was 16.
→Neil Armstrong received his student pilot’s
license at the age of 16.
People might float in space because the
gravity is slow.
→People might float in space because of the
low gravity.
Humans cannot survive if there is no food, water or oxygen.
→Humans cannot survive without food, water
or oxygen.
Daniel is writing about visiting another
planet. Help him rewrite the sentences
using the words in brackets.
1. 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 30. (when) ______________________________________
______________________________________
Neil Armstrong took his first flight at the age of six.
Yuri Gagarin became the first man to go into outer space when he was 30.
3. People might move to another planet in the
future because the population on the earth is
increasing rapidly. (because of)
__________________________________________
__________________________________________
__________________________________________
4. If there is no fresh food, meals will not be as tasty as they are on the earth. (without)
__________________________________________
__________________________________________
People might move to another planet in the future because of the increasing rapidly population.
Meals will not be as tasty as they are on the earth without fresh food.
5. It would be funny to play football on Mars
because of the low gravity. (because)
______________________________________
______________________________________
6. Without special boots, you cannot walk on
Mars. (if…not )
______________________________________
______________________________________
It would be funny to play football on Mars because the gravity is low.
If you don’t have special boots, you cannot walk on Mars.
把下面的复合句改成简单句。
1. He learnt to swim when he was eight
years old.
2. He could not go to the party because
he had too much homework.
He learnt to swim at the age of eight.
He could not go to the party because of too much homework.
3. He cannot solve this problem if he has
no help.
He cannot solve this problem without help.
We can rewrite some object clauses in
simple sentences with prepositions like
of and about.
B Using object clauses or simple
sentences
常用的一些动词和介词的搭配有：
remind somebody of… 使某人想起……
be sure/certain about…对……确信
→The smell of the pills reminds them of the
tasty food on the Earth.
Are they sure that space travel will be very fast
→Are they sure about the fast speed of
space travel
The smell of the pills reminds them that food on the Earth is tasty.
Millie knows little about the planet Mars. She is asking Daniel for more information. Rewrite Millie’s sentences using the words in brackets.
Millie: (1) Are you aware how far Mars is
away from the Sun
Daniel: Yes. Mars is about 142,000,000 miles
away from the Sun. It takes Mars
about two Earth years to cycle
around the Sun once.
Millie: (2) Are scientists in agreement that
living on Mars would be possible
for humans in the future
Daniel: No. But they’re working hard to learn
more about Mars.
Millie: (3) Do they think that the low gravity on
Mars might be a problem
Daniel: Yes, they do.
Millie: (4) Are you aware that transport could
be like on Mars
Daniel: It could be much better than that on
the Earth. However, scientists aren’t
sure whether people could grow plants
on Mars.
Millie: (5) I wonder how many people would like
to move to Mars. (6) I think people
should know that life on Mars would be
different from that on the Earth.
1. Are you aware
_____________________________________
(distance)
2. Do scientists agree
_____________________________________
(possibility)
3. Have they thought
_____________________________________
(problem)
of the distance between Mars and the sun
about the possibility of living on Mars
about the low gravity problem
4. Are you aware
___________________________________ (transport)
5. I wonder
____________________________________
____________________________________
(number).
6. I think people should know
_____________________________________
____________________________________
(differences).
of the transport on the Mars
the number of the people who would like to move to Mars
the differences between life on Mars and that on Earth
The photos remind me of my trip to the
UK five years ago.
2. Are you certain that Tom is satisfied
with the plan
Are you certain about Tom’s satisfaction with the plan
把下面的宾语从句改为简单句。
1. The photos remind me that I travelled
to the UK five years ago.
We can rewrite some defining
relative clauses in simple sentences
with prepositions like with and in.
C Using defining relative clauses or
simple sentences
→People might live in houses with huge
comfortable rooms.
On Mars you might see people who wear special boots.
→ On Mars you might see people in special
boots.
People might live in houses which have huge comfortable rooms.
Simon is writing about Mars. Rewrite the defining relative clauses in simple
sentences with prepositions 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.
_______________________________________
_______________________________________
Mars is a planet with an environment similar to that of the Earth.
Astronauts in 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.
______________________________________
______________________________________
It is difficult to breathe on a planet with much thinner air than that on the Earth.
On Mars there might be people with air tanks on their backs.
Simon is interested in stories about aliens. He even writes to aliens. Replace each of the 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.
if life on Mars would be interesting
because the gravity is low
without playing football.
on Mars,
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.
Simon
with the same football fields as those on the Earth.
Do you know the girl with two books in her hand
2. The man who wears a blue shirt is our
English teacher.
The man in a blue shirt is our English teacher.
把下面定语从句改为简单句。
1. Do you know the girl who is holding two
books in her hand
复习简单句和复合句的转换。