牛津译林版八年级上册 Unit6 Bird watching Period 3 Grammar课件(共44张PPT)

(共44张PPT)
Period 3
Grammar
课前自主预习
单词闯关 1.写下，记下 ____________
2.给鸟拍照 __________________
3.in order to ____________
4.walk a long way ____________
走很长一段路
write down　
take photos of the birds
为了　
句型在线 1.带上笔记本，以便记下你所看到的东西。
Take a notebook with you ___________________ what you see.
2.吴老师同意让我参加他们的学校旅行。
Mr Wu ____________________ their school trip.
3.她看见一只小熊猫喝她妈妈的奶。
She _______ a baby panda _______ her mother′s milk.
drink
in order to write down
agreed to let me join
saw
语法聚焦 动词不定式
课文呈现
A Using to-infinitives for purpose
We can use to-infinitives to express purpose.
我们可以用 to-不定式来表达目的.
I often go to the market to watch the birds.
Now the Chinese government has made laws to prevent all these things.
我经常去市场看鸟。
现在中国政府已经制定了法律来防止这些事情的发生。
We can also use in order to to express purpose. This is more formal than using to-infinitives.
我们也可以用 in order to 来表达目的，这比用 to-不定式更正式。
Some people want to make the wetlands smaller in order to have more space for farms and buildings.
Take a notebook with you in order to write down what you see.
有些人想把湿地变小，以便有更多的空间来建造农场和建筑物.
随身携带一个笔记本，把你看到的写下来.
What people do in Zhalong

Amy is thinking about the things people do in Zhalong Nature Reserve. Match the first parts of the sentences on the left with the second parts on the right Write the correct letters in the blanks.
1 People go to Zhalong ____
2 They should read about the
birds first _____
3 Most people take a camera _____
4 The Birdwatching Society
goes _____
a to take photos of
the birds.
b to study the birds
in the wetlands.
c to watch the birds.
d to learn more about
them.
c
d
a
b
B Using verbs + objects + to-infinitives
We can use some verbs with objects and to-infinitives.
我们可以用一些带宾语和 to-不定式的动词。
We are now inviting them to help us.
We need more people to count and describe the birds.
我们现在正在邀请他们来帮助我们。
我们需要更多的人来计算和描述这些鸟。
We add not before to-infinitives to express a negative meaning.
我们在不定式前加“ not ”来表示否定的意思。
We ask people not to catch birds for any reason.
We can use some verbs in this structure with infinitives without to.
我们要求人们不要因为任何原因去抓鸟。
我们可以在这个结构中使用一些带不定式的动词。
make or let + object + infinitive without to
Max tells funny jokes and often makes me laugh.
Mr Wu agreed to let me join their school trip.
Make 或 let + object + 不定式而没有 to
麦克斯讲有趣的笑话，经常逗我笑.
吴先生同意让我参加他们的学校旅行.
see or hear + object + infinitive without to
She saw a baby panda drink her mother's milk.
Millie and Amy heard someone sing in the park.
看到或听到 + 宾语 + 不定式而没有 to
她看见一只熊猫宝宝在喝她妈妈的奶。
米莉和艾米听到有人在公园里唱歌。
help + object + infinitive with or without to
This will help people (to) understand the importance of the wetlands.
帮助+ 宾语 + 不定式带或不带to
这将有助于人们了解湿地的重要性。
We often use these verbs in this structure.
advise ask
invite order
teach tell
Going birdwatching

The Class 1，Grade 8 students went to Zhalong Nature Reserve. Sandy is writing about their trip. Help her complete the sentences with the correct forms of the verbs in brackets.
Mr Wu (1)________ us_________ a pair of comfortable shoes because we would have to walk a long way. (ask/wear)
We (2)____________ some birds _________in the trees. (hear/sing)
Mr Wu (3)___________ us ______________ the birds carefully. (tell/watch)
asked to wear
heard sing
told to watch
He also (4)____________ us ____________ the birds. (want/describe)
He (5)____________ us ____________ in the wetlands . (advise/not shout)
The cold weather (6)__________ some birds _________ south for the winter. (make/fly)
wanted to describe
advised not to shout
made fly
The trip (7)__________ us _________________ more about wildlife. (help/learn)
helped (to) learn
考点精讲
1 Take a notebook with you in order to write down what you see.
带上笔记本，以便记下你所看到的东西。
[探究]
__________意为“写下，记下”，为“___________”结构，后接________时，________可放在两词之间，也可放在down的后面；后接________时，一定要放在两词中间，且代词要用________形式。
write down　
动词＋副词
名词
名词
代词
宾格
活学活用
1. 看黑板上的这个句子。请把它记下来。
Look at the sentence on the blackboard. Please
__________________________.
write it down
2 She saw a baby panda drink her mother′s milk.
她看见一只小熊猫喝她妈妈的奶。
[探究]
see sb do sth 意为“________________________”，强调看见动作的________或动作________发生。
I often see the dog cross the busy street alone.
我经常看到那条狗独自穿过繁忙的街道。
看见某人做某事
全过程
经常
[拓展]
(1)____________________意为“看见某人正在做某事”，强调动作________进行。
I saw him talking with his friends over there.
我看到他和他的朋友正在那边谈话。
(2) 英语中与see有类似用法的________动词还有hear， watch， feel，notice 等。
感官
see sb doing sth
正在
活学活用
2. I saw Tom ________ his key in the lock，turn it and
open the door.
A．put　 B．putting
C．puts D．to put
A
【解析】考查非谓语动词。根据句意“我看见汤姆把钥匙插进锁里，转动钥匙并打开了门”可知此题考查动词短语 see sb do sth，意为“看到某人做某事(强调做某事的过程)”。故选A。
语法聚焦
[[祈使句和 should 的用法]]
教材典句
1．I often go to the market to watch the birds.
2．Now the Chinese government has made laws to prevent
all these things.
3．Some people want to make the wetlands smaller in order
to have more space for farms and buildings.
4．Take a notebook with you in order to write down what
you see.
5．We are now inviting them to help us.
6．We need more people to count and describe the birds.
语法探究
● 1　不定式作目的状语
不定式作状语常用来表示________，可位于句首或句末。
They stopped to have a rest. 他们停下来休息了一会儿。
She got up early in order to catch the first bus.
她早起是为了赶第一班公交车。 　
目的
● 2　不定式作宾语补足语
(1) 带to的不定式可以跟在某些动词后作____________，如 tell，want，ask 等动词构成“tell/want/ask sb (not) to do sth”结构，但________后的to可留可省， help sb (to) do sth 意为“________________”。
The teacher asked him not to be late next time.
老师要求他下次别迟到。
宾语补足语
help
帮助某人做某事
(2) 有些“____________＋宾语”之后的不定式符号 to通常省略。
________ sb do sth 使某人做某事　
________ sb do sth 让某人做某事
have sb do sth 让某人做某事
let
使役动词
make
● 3　“动词＋不定式”与“动词＋doing”结构
(1) begin，start， learn， like 后接to do 和 doing 时含义________。
(2) stop， remember，forget 后接 to do 和 doing 时含义________。
stop ________ sth 停下来去做某事
stop ________ sth 停止做(正在做的)某事
相近
不同
to do
doing
remember ________ sth 记得去做某事
remember ________ sth 记得做过某事
forget ________ sth 忘记去做某事
forget ________ sth 忘记做过某事
to do
doing
to do
doing
活学活用
1．—What shall we do this weekend
—We'll drive to Dongliang Lake ________ boating.
A．to go　 　 B．to
C．going D．to going
A
2．Parents should tell their children ________ unhealthy
food. It′s bad for their health.
A．not to eat B．not eating
C．to eat D．eating
A
【解析】考查非谓语动词。根据句意“父母应该告诉他们的孩子们不要吃不健康的食物，不健康的食物对他们的健康有害”可知此题考查动词短语 tell sb not to do sth，意为“告诉某人不要做某事”。故选A