Unit 6 Bird watching Grammar课件(共20张PPT) 牛津译林版八年级上册

(共20张PPT)
Unit 6 Birdwatching
Grammar
1.掌握“动词+宾语+动词不定式to do”的结构。
2.学习用动词不定式to do 和in order to 表示目的。
学习目标
build Zhalong Nature Reserve to protect wildlife
go to Zhalong to watch the birds
go to Zhalong to study the birds
make laws to prevent all these things
A Using to- infinitives for purpose
We can use to-infinitives to express...
A. reason 原因 B.purpose目的
Grammar
新课讲授
We can also use in order to to express purpose.
go to Zhalong to watch the birds
go there to study the birds
make laws to protect the birds
take a camera to take photos of the birds
go to Zhalong in order to watch the birds
go there in order to study the birds
make laws in order to protect the birds
take a camera in order to take photos of the birds
注意：
由in order to引导的目的状语，既可以置于句尾，也可以置于句首。
e.g. They started early in order to get there in time.
In order to get there in time, they started early.
为了及时赶到那里，他们很早就出发了。
1 People go to Zhalong __ a to take photos of the birds.
2 They should read about __ b to study the
the birds first birds in the
wetlands.
3 Most People take a __ c to watch the
camera birds.
4 The Birdwtching __ d to learn more
Society goes about them.
a
d
b
c
动词不定式作目的状语
“Dear classmates, we are now inviting you to help us. At present we need more people to count and describe the birds. If you have time, please join us. And we also ask people not to catch birds for any reason. Please tell your friends and parents.”
verb+ sb. +(not) to-infinitives
What the members of Birdwatching Society said:
We are now inviting you to help us.
We need more people to count and describe the birds.
动词不定式用于说明宾语的情况，在句子中作宾语补足语,简称宾补。
verb+ sb. +(not) to-infinitives
1. I often go to the market________ (watch) the birds.
2. He gave me some money ________(buy) books.
3.Some people want to make the wetlands smaller _______________(have) more space for farms and buildings.
4.Take a notebook with you ___________( write) down what you see.
to watch
to buy
to have
to write
The teacher told me to clean the blackboard.
I want you to give me some help.
invite, advise, tell, allow, ask, teach,
get, wish, like, love, hate, order, want,
warn（警告）encourage（鼓励）---
+ sb. to do sth.
引导不定式作宾补（带to）的动词：
Our teacher advised us not to go to bed late .
The government has made laws to warn（警告） the people not to hurt the wild animals
We add not before to-infinitives to express a negative（否定的） meaning.
In order to protect the wildlife, we should ask people not to cut down the trees and forests.
Our teacher told us not to spend much time playing computer games.
1. tell sb. not to do sth
2. advise sb. not to do sth
3. order sb. not to do sth
4. ask sb. not to do sth
5. warn （警告）sb. not to do sth
verb+ sb. + not to-infinitives
make or let + object + infinitive without to
e.g. Max tells funny jokes and often makes me laugh.
Mr Wu agreed to let me join their school trip.
常跟不带to的动词不定式的动词
Correct the mistakes
The boss made the workers
to work for more than 8 hours.
My father asked me spend more time on Maths.
She often hears someone to sing in the park.
to spend
e.g. She saw a baby panda drink her mother’s milk.
Millie and Amy heard someone sing in the park.
see or hear + object + infinitive without to
notice
listen to
hear
watch
五看
see
look at
observe
三使
let
make
have
二听
一感觉:
feel
+ sb. do sth.
（不带to）
help + object + infinitive with to or without to
e.g.
This will help people (to) understand importance of the wetlands.
She often helps me (to) do the housework.
动词help后面的动词不定式可带to, 也可不带to。
Complete the sentences with the correct forms of the verbs in brackets.
Mr Wu _____ us _______ a pair of comfortable shoes because we would have to walk a long way. (ask/wear)
We _____ some birds ____ in the trees. (hear/sing)
Mr Wu ____ us ________ the birds carefully. (tell/watch)
He also __________ us __________ the birds. (encourage/describe)
asked to wear
heard sing
told to watch
encouraged to describe
He _______ us ___________ in the wetlands. (advise/not shout)
The cold weather _____ some birds ___ south for the winter. (make/fly)
The trip ______ us ________ more about wildlife. (help/learn)
advised not to shout
made fly
helped (to) learn
1. Use to-infinitives for purpose. (用动词不定式表目的）
to = in order to
2. Verb + object + to-infinitive (动词+宾语+ 动词不定式）
a. ask, (tell, want …) + sb + (not) to + do + sth
b. let, (make, have …) + sb + do + sth
c. help + sb + (to) + do + sth
课堂总结