牛津译林版八年级上册Unit 6 Bird watching 第4课时教学课件(共19张PPT)

(共19张PPT)
Unit 6 Birdwatching
Grammar
Task 1
People build Zhalong Nature Reserve ________________.
to protect wildlife
Why do people build Zhalong Nature Reserve
Warming-up
Look and answer
Zhalong Nature Reserve
Every year many tourists go to Zhalong ________________.
to watch the birds
Why do many tourists go to Zhalong every year
Warming-up
The members of the Birdwatching Society go there _________________.
to study the birds.
Why do the members of the Birdwatching Society go to Zhalong
Warming-up
Presentation
Let’s learn
Read the passage and circle to do
for purpose
In order to=to
People build Zhalong Nature Reserve to protect wildlife.
We can use to-infinitives to express purpose. (用动词不定式表示目的)
同义句转换
People build Zhalong Nature Reserve in order to protect wildlife.
= In order to protect wildlife, people build Zhalong Nature Reserve.
in order to也可用于表达目的
in order to 可放于句首或句末，放句首引导目的状语时要用逗号与主句隔开。
Presentation
Match the first parts of the sentences on the left with the second parts on the right.
Practice
c
d
a
b
Task 2
verb +sb. to do
Can you find more to-infinitives
tell, ask, get,
invite, need, want …
+ sb. to do sth.
+ sb. not to do sth.
verbs + object + to-infinitives
How to express a negative meaning
tell, ask, get,
invite, need, want …
Presentation
Let’s learn
ask sb. to do sth.
tell sb. to do sth.
advise sb. to do sth.
invite sb. to do sth.
want sb. to do sth. = would like sb. to do sth.
need sb. to do sth.
teach sb. to do sth.
wish sb. to do sth.
encourage sb. to do sth.
warn sb. to do sth.
List some verbs with the structure “verb + sb.+ to do”.
Presentation
1. The villagers invited tourists __________ (come) to dinner in
their homes.
2. The members of the Birdwatching Society teach children
________ (count) the birds.
3. He told children _________ (not play) near the lake.
4. Children helped their fathers ___________ (protect) the wildlife.
Complete the sentences
to come
to count
not to play
(to) protect
help sb. (to) do sth.
Practice
1. He went to the library because he wanted to borrow some books.
(同义句)
2. The teacher tells the students to play in the playground. (否定句)
The teacher tells the students not to play in the playground.
He went to the library (in order) to borrow some books.
Practice
Transform the sentences pattern
Make a board game in groups and make sentences about protecting wildlife with to-infinitives.
Practice
Make a dialogue in pairs
What do you want to do to protect wildlife
Why do you do that
Extension
Summary
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)
(1) ask/tell/want…+ sb. + (not) to + do + sth.
(2) let/make/have…+ sb. + do + sth.
(3) help + sb. + (to) + do + sth.
1. Revise the language points in this class.
2. Finish the related exercises in the textbook.
Homework
Thank you!