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(共33张PPT)
Unit 5 Wild animals
Grammar 语法优质课
译林版（2024）八年级
上
Learning objectives
1
Lead in
Grammar 1
3
Grammar 2
Grammar 3
5
Writing
Summary
7
Assessment
2
4
6
8
Homework
9
By the end of the lesson, I will be able to...
1
2
3
use “ to-infinitives” correctly;
know more about wild animals;
improve the sense of protecting the wild animals.
01
Learning objectives
https://www.21cnjy.com二一教育
The Class 1, Grade 8 students went on a school trip to Beijing Zoo yesterday.
Lead in
02
Simon wrote about a giant panda.
Guess:What did he write
weight
food
appearance
qualities
...
02
Lead in
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!
We often use to-infinitives after these verbs:
________, ________, ________, ________,
________, learn, plan, prepare, choose, fail,
remember, forget, agree, etc.
Work out
the rule!
hope
promise
try
decide
want
A
Using verbs + to-infinitives
Grammar 1
03
Millie watched a video about another giant panda at the zoo and then wrote about it.
03
Grammar 1
Complete her article with the help of the words in brackets.
This panda is fat and quiet. She (1) ___________ (like, eat) apples. She does not (2) ____________ (want, move) around. Once in a while, she (3) _________________ (manage , climb) up the tree, but she often (4) ___________ (fail, get) down. The workers at the zoo usually (5) _____________ (help, get) her down from the tree.
A1
likes to eat
want to move
want to move
fails to get
help (to) get
/f t/ adj.胖的
/'m n d / v.完成；管理
manage to do设法完成某事
manager n.经理；经营者
03
Grammar 1
动词不定式是一种活跃的非谓语动词。它在句中可起到名词、形容词或副词的作用，作主语、宾语、定语、状语或宾语补足语。
动词不定式的形式是“to+动词原形”，但to有时要省略。
动词不定式在具体运用时，用不用to，取决于谓语动词的用法。
动词不定式没有人称和数的变化，在句子中不能单独做谓语。
动词不定式的结构：to + 动词原形
动词不定式
03
Grammar 1
动词不定式的用法（一）
动词不定式作宾语
动词不定式在句子中充当谓语动词的宾语，这类谓语动词常见的有：
want（想要）、hope/wish（希望）、begin/start开始）、decide（决定）learn（学习，学会）、agree（同意）、expect（期待预料 ）、help（帮
助)(to可以省略)、need(需要）、plan（计划）、prepare（准备）、refuse（拒绝）、offer（主动提出)等。
He refused to go with me.他拒绝和我一起去。
03
Grammar 1
有些动词后既可以跟动词不定式，又可以跟动名词，但是它们表示的含义不同。
forget doing sth 忘记做过某事（事情已做）
forget to do sth 忘记去做某事（事情未做）
remember doing sth 记得做过某事（事情已经发生)
remember to do sth 记得去做某事（事情还未发生）
try doing sth 试着做某事
try to do sth 努力做某事
注意
03
Grammar 1
常见的接动词不定式作宾语的动词
想要拒绝选择(want,refuse, choose)，
计划 努力学习(plan, try, learn)；
许诺 同意帮助(promise, agree, help)，
希望决定开始(hope,decide, begin/start)。
助记
03
Grammar 1
Read the text below by a panda keeper and pay attention to the use of to-infinitives.
We love the baby panda very much. We prepare all kinds of food to give her a healthy diet. We buy some toys to make her happy. We also give her a special cake and some gifts in order to celebrate her birthday every year.
B
We often use to-infinitives or ___________ to express purpose. The latter is more formal than the former.
Work out
the rule!
in order to
Using to-infinitives to express purpose
04
Grammar 2
Amy is thinking about wild animals after coming back from the zoo.
04
Grammar 2
Match the first part of the sentences on the left with the second part on the right.
1 Eagles use their eyes
2 Whales make loud noises
3 Tigers hunt other animals
4 Zebras live in groups
5 Baby animals watch their parents
a in order to stay safe.
b to feed their babies and themselves.
c in order to talk to each other.
d to learn hunting skills.
e to find small animals on the ground.
B1
/h nt/ n.鲸
hunt. v.猎杀
hunter n.猎人
04
Grammar 2
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.
Using verbs + objects +infinitives with/without to
C
/'mi n fl/ adj.有意义的；重要的
be meaningful to sb对某人有意义
05
Grammar 3
动词不定式的用法（二）
动词不定式作目的状语
我们可以用动词不定式表示某一动作或状态的目的。动词不定式作目的状语时，可放在句首，也可放在句尾，放在句首时常用逗号隔开。为了使表达更加清楚或对目的加以强调，还可用in order to。
We should reduce waste in order to protect the environment.
为了保护环境，我们应该减少浪费。
In order to pass the exam, she reviews her lessons every night.
为了通过考试，她每晚都复习功课。
05
Grammar 3
. We can use some verbs with objects and infinitives.
· We can use these verbs in this structure with infinitives without to: _______ or let; _______ or hear.
· We can use the verb _______ with or without to.
· We add _______ before to-infinitives to express a negative meaning.
Work out
the rule!
TIP
We often use the following verbs with objects and to-infinitives:
tell invite teach advise order warn encourage
make
see
help
not
05
Grammar 3
Kitty is also writing about the trip to the zoo.
05
Grammar 3
Complete her notes with the help of the words in brackets.
· Mr Wu (1) _________ us __________ (tell, wear) a pair of comfortable shoes.
· Our Chinese teacher (2) _________ us _________ (ask, watch) the animals carefully because she (3) ________ us _________ (want, write) about them.
· We (4) _________ some birds _________ (hear, sing) in the trees.
· The trip (5) _________ us _________ (help, learn) more about animals.
C1
told to wear
asked to watch
wanted to write
heard sing
helped (to) learn
05
Grammar 3
动词不定式作宾语补足语
(1)在ask、tell、order、invite、get、allow、wish、want、encourage、advise、warn、love、hate等动词之后，常用带to的动词不定式作宾语补足语。即构成ask/tell/order/invite/...sb to do sth结构，其否定形式为ask/tell/order/invite/...sb not to do sth。
The teacher wants us to study hard.
老师想要我们努力学习。
The teacher tells the students not to talk in class.老师告诉学生们不要在课堂上讲话。
动词不定式的用法（三）
05
Grammar 3
(2)使役动词(make、let、have)和感官动词(hear、feel、see、watch、notice等)后跟不带to的动词不定式作宾语补足语。
They made me do the work.
他们让我做这项工作。
I often hear the boy sing the same song.
我经常听到那个男孩唱同一首歌。
(3)动词help后跟动词不定式作宾语补足语时，动词不定式可带to也可不带to。
She often helps her mother(to) do the housework.她经常帮她妈妈做家务。
动词不定式的用法（三）
05
Grammar 3
C2
Write about one of your trips to the zoo using to-infinitives.
Group writing
1.Use to-infinitives
2.Use at least 80 words
3.Use some good expressions
4.Group writing
06
Writing
Show Time
06
Writing
Summary
07
Summary
07
verbs+to-infinitives:
She manages to climb up the tree.
“to-infinitives” expresses purpose:
We plan to give her some gifts in order to celebrate her birthday.
verbs+objects+infinitives
The pandas made us all laugh.
to-infinitives
一.用所给单词的适当形式填空
1. I forgot __________(bring) my books here.Luckily, my deskmate shared hers with me.
2. Please keep a close eye on the sick boy _____________(prevent) him getting a high fever.
3. ____________(learn) more about the history of Nanjing, you can visit some local museums.
4. (2024 淮安一模)I really want _____________ (keep) a balance between study and play.
5. (2024 无锡梁溪一模) They finally managed __________(carry) all the passengers home with the help of old trains.
Exercises
to bring
to prevent
To learn
to keep
to carry
07
Summary
07
6. (2024 扬州仪征一模) When you have problems, local people would like to help you________ (solve) them.
7. My Maths teacher told me __________(not join) the club because it's too boring.
8. The cold weather makes some birds ______(fly) south for the winter.
9. Mr Wu always advises us ______________(practice)spoken English for half an hour every morning.
10. She is a kind girl, and she always does what she can _________(help) others.
11. He decided ___________(not order) the dishes in that restaurant.
(to) solve
not to join
fly
to practice
to help
not to order
07
Summary
07
Unit 5 Wild animals--Grammar
to-infinitives
1.verbs+to-infinitives:
She manages to climb up the tree.
2.“to-infinitives” expresses purpose:
We plan to give her some gifts in order to celebrate her birthday.
3.verbs+objects+infinitives
The pandas made us all laugh.
Assessment
08
Self-assessment
I can use “ to-infinitives” correctly;
I can know more about wild animals;
I can improve the sense of protecting the wild animals.
Basic (基础)
Memorize the rules of “ to-infinitives”.
Improving(提升)
Write about one of your trips to the zoo using to-infinitives.
Extend (拓展)
Record a video introducing a certain kind of wild animal，using to-infinitives.
Homework
09
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