资源简介

(共19张PPT)
年 级：八年级 学 科：英语（译林版）
Unit 5 Wild animals
(Grammar)
Yu Bao
Jia Yueyue
He couldn’t wait to visit Wuxi Zoo to watch the two big stars.
He asked me not to plan the trip for him.
Finally, his friends helped him (to) make the plan and they had much fun.
to-infinitives（动词不定式）
基本形式是“to + 动词原形”，有时也可以省略“to”。
动词不定式没有人称和数的变化，可在句中充当多种成分，如主语、宾语、表语、定语和状语等。
其否定形式为“not to + 动词原形”。
Presentation
A Using verbs + to-infinitives
The Class 1, Grade 8 students went on a school trip to Beijing Zoo yesterday.
Simon wrote about a giant panda. Read his article and pay attention to the use
of to-infinitives.
When we arrived at the zoo, the pandas started to come out of their home. I liked
one of the pandas most. That panda was full of energy. He began to eat bamboo
for breakfast. After that, he tried to exercise. A few minutes later, he decided to
climb a tree. He even wanted to climb over the wall!
Work out
the rule
We often use to-infinitives after these verbs:________, ________, ________, ________, ________, learn, plan, prepare, choose, fail, remember, forget, agree, etc.
start
begin
try
decide
want
Objects
(宾语)
agree to do sth. 同意做某事
begin/ start to do sth. 开始做某事
decide to do sth. 决定做某事
fail to do sth. 未能做某事
forget to do sth. 忘记做某事
hope to do sth. 希望做某事
choose to do sth. 选择做某事
need to do sth. 需要做某事
learn to do sth. 学着做某事
plan to do sth. 计划做某事
prepare to do sth. 准备做某事
remember to do sth. 记得做某事
try to do sth. 尝试做某事
seem to do sth. 似乎做某事
want to do sth. = would like to do sth.
想要做某事
can’t wait to do sth. 迫不及待做某事
try one’s best to do sth.尽某人最大的努力做某事
动词不定式作宾语
remember __________ sth. 记得要做某事
remember __________ sth. 记得做过某事
forget _________ sth. 忘记要做某事
forget _________ sth. 忘记做过某事
1. 去动物园的时候记得带上相机。
_________ ________ take the camera when you go to the zoo.
2. 他们记得在动物园拍了很多照片，这些照片充满了美好的回忆。
They __________ __________ many photos in the zoo, which are full of good memories.
有些动词既可跟不定式作宾语，
也可跟动名词作宾语，但含义不同：
Remember to
doing
to do
doing
to do
remember taking
stop to do sth. 停下来去做某事
stop doing sth. 停止做某事
go on to do sth. 继续做另一件事
go on doing sth. 继续做原来在做的事
need to do sth. 需要做某事
need doing sth. 某事需要被做
This panda is fat and quiet. She (1) ____________ (like, eat) apples. She does not (2) ____________ (want, move) around. Sometimes she (3) ______________
(manage, climb) up the tree, but she often (4) __________ (fail, get) down.
A1 Millie watched a video about another giant panda at the zoo and then wrote about plete her article with the help of the words in brackets.
likes to eat
want to move
manages to climb
fails to get
manage to do 设法做成某事
try to do 试图做某事；尽力做某事
tries to climb
Practice
B Using to-infinitives to express purpose
We love the baby panda very much. We prepare all kinds of food to give her a
healthy diet. We buy toys to make her happy. We also plan to give her a special cake and some gifts to celebrate her birthday.
They prepare all kinds of food to give her a healthy diet.
They prepare all kinds of food in order to give her a healthy diet.
我们也可以用in order to来表目的，尤其是在正式写作中。
Adverbials of purpose 目的状语
目的状语放在句首时，用逗号与主句隔开。
In order to give her a healthy diet, they prepare all kinds of food.
为了不吓到动物们，游客们禁止使用闪光灯。
_____ ______ ______ ______ frighten the animals, visitors mustn’t use flashlights.
In order not to
其否定形式为in order not to。
Presentation
B1 Amy is thinking about wild animals after coming back from the zoo. Match the first part of the sentences on the left with the second part on the right.
e
c
b
a
d
Practice
C Using verbs + objects + infinitives with/without to
Daniel wrote about the school trip to the zoo. Read his article and pay attention to
the use of infinitives with or without to.
Today we went to the zoo. The pandas in the zoo are really cute and they made us all laugh. I saw a baby lion stay near its mother for protection. How lovely! Mr Wu asked us not to feed the animals there because it might make them sick. This trip was meaningful because it helped us (to) understand the importance of protecting animals.
Object complements
(宾语补足语)
Presentation
1. Using verbs + objects + infinitives without to
The pandas made us all laugh.
I saw a baby lion stay near its mother for protection.
使役动词
make/let/have sb. do
感官动词
see/hear/watch/notice sb. do
make sb. do
see sb. do
ask sb. to do
Mr Wu asked us not to feed the animals there
because it might make them sick.
2. Using verbs + objects + infinitives with to
tell sb. to do 告诉某人做某事
invite sb. to do 邀请某人做某事
teach sb. to do 教某人做某事
advise sb. to do 建议某人做某事
order sb. to do 命令某人做某事
warn sb. to do 警告某人做某事
encourage sb. to do 鼓励某人做某事
ask sb. not to do
make sb. do
make sb. not do
This trip was meaningful because it helped us (to) understand the importance of protecting animals.
3. Using verbs + objects + infinitives with/without to
help sb. (to) do
C Using verbs + objects + infinitives with/without to
Work out
the rule
We can use some verbs with objects and infinitives.
We can use verbs such as ______, let, ______ and hear in this structure without to.
We can use the verb ______with or without to.
We add _______ before to-infinitives to express a negative meaning.
help
not
make
see
C1 Kitty is also writing about the trip to the plete her notes with the help of the words in brackets.
told
to wear
asked
to watch
wanted
to write
heard
sing
helped
(to) learn
Practice
comfortable shoes.
verbs + to-infinitives
to express purpose
verbs + objects + infinitives with/without to
He couldn’t wait to visit Wuxi Zoo to watch the two big stars.
Summary
Objects
He asked me not to plan the trip for him.
Finally, his friends helped him (to) make the plan and they had much fun.
Adverbials of purpose
Object complements
Last week, my friends and I went to Wuxi Zoo. Before the trip, My friends (1) ________ me __________(ask/wear) a pair of comfortable shoes because we would have to walk a long way. When we reached there, the zoo keepers (2) _______ us __________(tell/not feed) the animals.
We _____________(plan/go) to the Panda House _________(see) Yu Bao and Jia Yueyue first. They were sitting there and enjoying their meals. I couldn’t ____________(wait/take) some photos ____________(remember) this lovely moment. Then, we ______________ (decide/see) the monkeys. It was exciting to _________ them _________(watch/jump) around. Later, we walked around the whole zoo __________(enjoy) beautiful views of the various animals.
We had lots of fun in the zoo. The trip also (8) _______us__________(help/learn) more about wildlife.
Consolidation
asked
to wear
told
not to feed
planned to go
to see
wait to take
to remember
decided to see
watch
jump
to enjoy
helped
(to) learn
Homework
Compulsory homework:
1. Finish A2 on Page 134.
2. Write about one of your trips to the zoo using to-infinitives.
Optional homework:
Collect more information about endangered wild animals.
感谢您的观看
202X/01/01

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