牛津版八年级 (8A)

Unit 4

Unit 4

Grammar

江苏 徐建国

Could you tell us something about

what we learned in the last

period?

Could you tell us something about

what we learned in the last

period?

DiscussionDiscussion

我们用 if 条件状语从句来谈论 “可能的行动导致的可能的结果” If we grow more bamboo, giant panda

s will have more food to eat.

Giant pandas will die if we do not prot

ect them.

Work out the rules

problemsproblems

If hunters …they will..

If farmers …Giant pandas will …

If people …They will …

problems

If hunters

they will

If farmers

giant pandas will

If people

they will

catch a giant panda

kill it for its fur.

cut down trees and forests

have nowhere to live.

find baby pandas alone

often take them away.

When if clause

used generally now

from the sentence

When the principal

clause main clause

used generally in

the future

If we grow more

bamboo,

giant pandas will

have more food.

If we do not protect

giant pandas,

they will die.

What will happen?What will happen?

1. If I see a snake in front of me, ____

2. Giant pandas will survive ____

3. I will see some beautiful birds ____

4. If I go to North Africa, ____

5. If I have time next weekend, ____

D

C

E

A

B

A. I will see a lot of camels.

B. I will go to the zoo.

C. if we protect them

D. I will run the other way.

E. if I walk through a rainforest,

Why do I want to go to Beijing Zoo?

1. If I ___ (go) to Beijing Zoo,

I ________ (learn) a lot about animals.

2. If I ______ (arrive) at noon,

I ______ (see) the feeding of animals.

3. If I ____ (find) the Monkey Hill,

I ________ (have) fun there.

go

will learn

arrive

will see

find

will have

4. If I _____ (watch) the animals care

fully, I ______ (get) enough inform

ation for my class report ( 报告 ).

5. If I _____ (finish) my report( 报告 ),

I ______ (be) very happy.

watch

will get

finish

will be

Fill in the blanksFill in the blanks

1. If Eddie ____ (die), no one ________

(look) after Hobo.

2. If Eddie and Hobo _________ (not

have) enough food, they ________

(share) it.

3. Wild animals ______ (be) in danger if

hunters ____ (keep) killing them.

dies will look

don’t have

will share

will be

keep

4. We _______ (keep) pandas safe from

danger if we _____ (build) more

reserves.

5. You ______ (see) some squirrels if

you __ (go) to the zoo.

6. The baby panda ______ (live) on his

own if his mother _____ (leave) him

for two whole days.

will keep

build

will seego

will live

leaves

7. If we ____ (build) the giant panda

reserves, we ____________ (encourage)

them to leave.

8. If we _______ (not do) anything, soon

there ______ (be) no pandas in the

world.

build

will encourage

don’t do

will be

Making

comparisons.1. If people find baby pandas alone,

they _______ (take) them away.

2. If pandas are hungry, they ___

(eat) bamboo leaves.

3. If birds are frightened, they

_______ (fly) away.

will take

eat

will fly

4. If there are many beautiful birds in the

zoo, we _______ (take) a camera with us.

5. If a tiger ___________ (not have) food

for 15 days, it ___ (die).doesn’t have

dies

will take

Xi Wang had to look after herself beca

use her mother had another baby.

Why did you go to Beijng Zoo ?

Why didn’t you take any food for ani

mals?

Giving reasons with “because”

Why did you stay in the zoo for so

much time?

Why must we protect wild animals?

It is very difficult for giant pandas to

survive in the wild because of many

reasons.

All the people cheered / the wonderful

show

Giving reasons with “because of”

Lots of people know about the show/

the ads.

The dolphins were really tired/the

performance

Some students couldn't go to the

show/the exam

Giving reasons with “because of”

1. Why is the ground all wet?

(flood) The ground was all wet

because of the flood.

2. Why is he so happy?

(got an A for English)

3. Why is she so sad?

(lost her pen)

4. Why is the baby crying?

(hunger)

5. Why didn’t you go to the show?

(the maths exam)

Work out the rules:

We can use “because” and “because

of” to give the reason(s) for

something.

The word “because” introduces the

clause of reason and we usually put it

in the middle of a sentence. We use a

noun, a noun phrase or a pronoun

after “because of”.