Unit 4 Amazing Science Topic 1 When was it invented? 课件 2023-2024学年仁爱版九年级英语上册 (共26张PPT)

(共26张PPT)
Unit 4 Amazing Science
Topic 1 When was it invented
教材梳理
单词回顾
1.火箭______
2.金属______
3.卫星______
4.宇宙飞船______
5.锁______
6.手提电脑______
7.数码相机______
8.手机______
9.机器人______
10.全球定位系统______
11.彩色铅笔______
12.想法，看法______
13.枪，炮______
14.键盘______
15.标志，记号______
16.人造的______
17.耐穿的_____
rocket
metal
satellite
spaceship
lock
laptop
digital camera
cellphone
robot
GPS
crayon
thought
gun
keyboard
mark
man-made
hard-wearing
1.silly(adj.)_____（反义词）聪明的
_____（近义词）愚蠢的
2. imagination(n.) _______（v.）想像
3.evaluate(v.) _______（n.)评价，评估
4.design(v.) _______(v.)重新设计
5.invent(v.) _______(n.)发明
_______(n.)发明家
6.develop(v.) __________ (n.)发展
_______ (adj.)发达的
7.explore(v.) _______(n.)探险家
词汇拓展
imagine
clever
foolish
evaluation
redesign
invention
inventor
development
developed
explorer
重点短语小结
1. 允许某人做某事
被允许做某事
允许做某事
2.向某人学习
从…中学到…
3.太多的…
太…
4.实现某人的梦想/目标
梦想成为现实
allow sb. to do sth.
be allowed to do sth.
allow doing sth.
learn from sb.
learn...from…
too many +可数n复
too much +不可数n
much too +形/副
realize/achieve one’s dream/goal
one’s dream/goal comes true
重点短语小结
5.据说/报道…
6.在某人一生中
7.与某人分享某物
8.嘲笑
9.一颗人造卫星
10.希望做某事
希望某人做某事
It’s said/reported that…
during/in one’s life/lifetime
share sth. with sb.
laugh at
a man-made satellite
wish sb. to do sth.
wish/hope to sth.
词组辨析
1.be made of
2.be made from
3.be made by
4.be made in
5.be made into…
6.be made out of…
7.be made up of…
make
+原材料（看得见）
+原材料（看不见）
+人
注：be made by hand
+地点
由…制成的
由某人制造的
在某地制造的
被制作成…
由…制造而成
由…组成（由几部分组成）
made
making
词组辨析
1.be used for doing sth.
2.be used to do sth.
3.use sth. to do sth.
4.be used as…
5.be used by sb.
6.be /get used to doing sth.
7.used to do sth.
use
习惯于做某事
被用来/于做…
过去常常做某事
被作为…而使用
用…来做某事
=
被某人使用
used
using
usage
useful
useless
词组辨析
1.show sth. to sb.
show sb. sth
2.show sb. around (…)
3.show off
4.show sb. the door
show
展示某物给某人看
在展览之中
才艺展示
时装秀
炫耀
带某人参观某地
让某人离开，下逐客令
=
向某人展示某物
1.be on show
2.talent show
3.fashion show
showed(过去式) showed（过去分词）
词组辨析
1.send …to/into…
2.send sth. to sb.=send sb. sth.
3.send up
4.send for sb.
send
把某人或某物送入…
发射卫星、宇宙飞船、导弹等
送某物给某人
派人去请某人来帮忙
sent(过去式)-sent（过去分词）
come
come about 产生，发生
came(过去式)-come（过去分词）
1.come on
2.come out
3.come from
4.come to an end
5.come back
6.come across sb/sth.
7.come down
8.e to sb.
9.e up with sth.
Have a try
Translate these sentences into Chinese
1.昨晚我不被允许玩电脑游戏。
2.如果你花费太多时间在电脑上，那对你的健康不利。
3.我希望有一天你的梦想能变成现实。
4.手机被人们广泛使用。
5.据说在他一生中他发明了2000多件东西。
I was not allowed to play computer games last night.
It’s bad for your health if you spend too much time on computers.
I hope your dream will come true one day.
Mobile phones are widely used by people.
It’s said that he invented more than two thousand things during/in his life.
补全对话
A: What is a laptop made of
B:_____________________.
A:_______________________
B: It is used for studying.
A:___________________________
B: It was developed in Japan in 1985.
It is made of plastic
What’s it used for
When and where was it developed
考点链接-被动语态
时态 被动形式
一般现在时 am/is/are done
一般过去时 was/were done
一般将来时 will be done
现在进行时 am/is/are being done
过去进行时 was/were being done
现在完成时 have/has been done
考点一： 各种时态的被动语态
基本构成：be+及物动词的过去分词
抓重点
主动语态变被动语态的步骤：
She speaks Chinese.
Chinese
is spoken by
her.
主动语态： 主语 + 动词 + 宾语
被动语态： 主语 + be + 过去分词 + by + 宾语
学方法
考点二：含有情态动词的被动语态
结构：主语+can/may/should/must +be +done
e.g.1.-How often do I need to feed the dog
-It _____food every day,or it will be hungry.
A.must give B.must be give
C.must be given D.must be gave
2.Thanks to the Internet,different kinds of information_____in a short time.
A.can be learned B.has been learned
C.can learn D.has learned
学方法
C
A
考点三：几种特殊情况的被动语态
1.省略to的不定式的被动语态：感官动词hear,see,notice,listen to和使役动词make,let,have等在主动语态中用不带to的不定式，但变为被动时，需要把省略的to补出来。
e.g.1.She is often_____read English in her room.
A.hearing B.heard
C.heard to D. to hear
2.In the old days,they_____in the factory from morning to enening.
A.were made to work B.asked to work
C.made to work D.were asked for work
C
A
考点三：几种特殊情况的被动语态
2.主动结构表被动含义：
1）look,sound,feel,taste,,smell等系动词
2）want/need/require+doing=want/need/require to be done
3）be worth doing
4）open,sell,write,wash,drive等词，表示东西的性能，性质时
e.g.The window won’t open．(这扇窗户打不开。)
The pen writes well．(这笔很好用。)
It turned out fine that day．(结果那天天气很好。)
The dress washes easily. (裙子好洗)
不及物动词没有被动语态(因为不及物动词没有宾语，转换成被动语态便没有主语)。但这里要注意的是：由于受汉语的影响，有些不及物动词很容易被考生误认为是及物动词，从而误用被动语态。这类易用错的动词主要的有take place 发生 / happen 发生 / come about 发生 / breakout 爆发 / appear出现 / disappear 消失 / last 持续 等)。
例:What has happened to him
Elections take place every four years.
I don’t know how this thing came about.
A fire broke out during the night.
Our friendship will last forever.

注意
2014.When Tim _____why he was late for school,he just kept silent.
A.was asked B.asked C.was asking D. is asked
2013. -Excuse me.I’m looking for Be the Best of Yourself .
-Sorry.The book you ask for ____out.
A.is selling B.is sold C.was selling D. will be sold
A
B
2012. -Have you heard of Earth Day
-Yes.The first Earth Day___in 1970 to educate us to protect our planet.
A.celebrates B.celebrated C.is celebrated D.was celebrated
D
试真题
2011.Soft drinks ____to children for free in some restaurants on Children’s Day.
A.offer B.have offered C.are offered D.will be offered
C
Exercise:
1.-What’s your bike made_____
-Metal,of course. A.of B.in C.from D.by
2.-What’s the machine_____for
-It’s used for ____clothes.
A.use,wash B.used,to wash C.using,washing D.used,washing
3.-When and where_____the digital camera_____
-In Japan in the 1970s. A.did,develop
B.was,developed C.is,developed D.were,developed
4.-Could you tell me how the car accident_____
A.came about B.came on C.came over D.came out
A
D
B
A
Exercise:
5.Mike,you _____on the phone.
A.is wanted B.want C.are wanting D.are wanted
6.-Would you like to go to the movie with me
-Sorry,I____to go out tonight.
A.won’t be allowed B.am allowed
C.don’t allow D.will allow
7.If I ____five minutes,I____everything ready.
A.am given,will get B.will give,will get
C.will be given,get D.have,get
8.Oh,the milk____strange,do you think it’s OK to drink
A.was tasted B.tasted C.is tasting D.tastes
D
A
A
D
Exercise:
9.-I saw Betty go to Crandpa Zhang’s home just now.
-Yes,she is often seen ____the old man with his housework.
A.to help B.help C.helped D.helping
10.A new house____at the corner of the road now.
A.is building B.is being built
C.been built D.be building
11.Now more and more man-made satellites are _____ by humans.
A.sent for B.send up C.sent up D.sent into
12.I was made _____ this or that while working as a waiter in this hotel.
A.do B. doing C.to do D.did
A
B
C
C
Exercise:
13.-How is your grandma
-She is fine.She used to____TV at home after supper,
but now she gets used to____out for a walk.
A.watch,go B.watching,go
C.watching,going D.watch,going
14.Don’t throw away the waste paper.It needs____so that
it can’t be resused.
A.to destroy B.destroying
C.to collect D.collecting
15.We’re____a lot of good ideas,aren’t we
A.getting along with B.coming up with
C.catching up with D.doing well in
D
D
B
1.你认为生活中最有用的发明是什么 为什么？请根据以下表格的提示讨论一下。
The most useful invention …
Why is it useful …
Who uses it …
What do you think of it …
2.根据讨论内容，写一篇80字左右的文章。
Homework
1.将刚才讨论的作文写到作业本上。
2.复习并背诵课文中的知识点。
GOODBYE