北师大版（2019）必修 第二册Unit 4 Information technology Lesson 2 & Lesson 3—Language Points课件(共43张PPT)

(共43张PPT)
UNIT 4
INFORMATION TECHNOLOGY
Lesson 2 & Lesson 3—Language Points
Ⅰ.单词拼写
1.They tried a variety of (材料) to invent a new type of bulb.
2.What concerned the mother was that her son would rather communicate in virtual world than talk in (现实).
3.The smartphone is a magic widely used nowadays.
4.The laws are there to (确保) people’s online safety.
materials
reality
device
ensure
5.I don’t subscribe to her argument that E-books will finally _______
traditional paper books.
6. Press this button and your goods will be (投递) to the given address within a week.
7.Some (观点) on the Internet are quite shallow and trivial so you should be sensible.
8.Few people nowadays are able to friendships into adulthood.
replace
delivered
opinions
maintain
9.The spokesman gave a account of functions of the new tablet.
10.Obviously，your tone of voice is as important as the of what you have to say.
brief
content
Ⅱ.词形变化填空
1.I am writing to ask if your school offers accommodation because it will be inconvenient if your school doesn’t ___________ exchange students.(accommodate)
2.Though the father is a middle-aged man，he felt quite
about his son’s addiction to video games.(power)
accommodate
powerful
powerless
3.Some of the surveyed people that teenagers should take cellphones to school，while others disagreed with the .
(argue)
4.In ，the bad weather to our difficulty on our way to the destination.(add)
5.In this area，a factor in the improvement of health is the lack of doctors.Besides，the medical devices are .(limit)
argued
argument
addition
added
limiting
limited
6.Mrs Brown Jackie with 5 dollars for cutting the lawn though he asked nothing in ，about which Jackie found
.(reward)
rewarded
reward
rewarding
Ⅲ.完成句子
1.尽管我承认他不是完美的，但实际上我确实喜欢他。(while引导让步状语从句)
，I do actually like him.
2.移动电话使我们彼此联系更容易。(make＋it＋宾补＋to do)
Mobile phones with each other.
3.无论你们在哪里，你们仍然都是我的好朋友。
，you’re still my good friends.
While I admit that he is not perfect
make it easier for us to get in touch
Wherever/No matter where you are
1
account
n.账户；账目；描写
v.认为是；解释；占(一定数量或比例)
open/close an account开户/销户
give an account of叙述；说明
on account of＝because of＝owing to因为
on no account＝in no way＝by no means决不
take sth. into account把……考虑在内
account for (数量、比例)占；解释，说明
on
单句语法填空/完成句子/单句写作
(1)While this book tells the stories of famous people in history，it also gives an account the ordinary individuals.
(2)She was blamed by the teacher account of her fancy hairstyle.
(3)My deskmate is addicted to playing computer games，which accounts his bad grades.
for
of
(4)教授警告说，在任何情况下我们都不应该在考试中作弊。
The professor warned that _________________________________
.
(5)(应用文之申请信)如果您能考虑我的申请，我将不胜感激。
_______________________________________________________
on no account should we cheat in
examinations
I’d appreciate it if you can take my application into account.
favour
n.恩惠；善意的行为
v.较喜欢
(favourable adj.赞成的；有利的 favourite adj.最喜欢的)
do sb. a favour＝do a favour for sb. 给某人帮忙
ask sb. a favour请某人帮忙
in favour of赞成，支持
favour doing sth. 喜欢做某事
2
单句语法填空/完成句子
(1)(议论文之正反论点)Some people are against the argument while others are favour of it.
(2)Elsewhere，people favour (shake) hands，bowing from the waist，or nodding the head when they meet someone else.
(3)I admitted that maths is not my (favour) among all the subjects.
in
shaking
favourite
(4)你能帮我审阅一下草稿并做出必要的修改吗？
to review the draft script and make necessary changes
Could you do me a favour
harm
vt.& n.伤害，损害
(harmful adj.有害的 harmless adj.无害的)
do/cause harm to...对……造成伤害
There is no harm in doing sth. 做某事无害
be harmful to...对……是有害的
3
单句语法填空/句型转换/单句写作
(1)We have to admit no cigarette is completely (harm).
(2)As we all know，staring at the screen for long does great harm ___ the eyesight.(2021·全国乙，应用文写作)
→As we all know，staring at the screen for long the eyesight.
(3)毕竟，听别人的意见并没有什么坏处。
_______________________________________________________
harmless
to
is harmful to
After all，there is no harm in listening to others’ opinions.
replace
vt.取代；接替
replace A with/by B　用B代替A
take the place of＝take one’s place代替……
in place of代替；取代
take place发生
4
单句语法填空/完成句子
(1)(应用文之环保话题)More and more families replace bicycles ____ private cars, which，in turn，results in air pollution.
(2)You can use an avatar place of the real image of yourself in online communication.
with
in
(3)近年来，人们的交流方式发生了巨大变化。随着科技的发展，微信已经取代了传统的信件。
Great changes in the way people communicate in recent years.WeChat e-mails with the development of technology.
have taken place
has replaced/has taken the place of
basis
n.基础；基点
(base n.基地；基础 v.以……为基础 basic adj.基础的；基本的 basically adv.基本上；大体上)
on the basis of...在……的基础上
on a daily/monthly/regular basis每天/每月/定期
base sth. on以……为基础(常用被动形式be based on)
5
单句语法填空/单句写作
(1)It is essential that opinions should be expressed on the (base) of fact.
(2)Based true stories，the movie The Battle at Lake Changjin has an impact on the audience.
(3) speaking，education is about teaching learning skills rather than knowledge.(base)
basis
on
Basically
basic
(4)(应用文之建议信)如果你想学好英语，你应该每天都读英语。
__________________________________________________________________________________________________________
If you want to learn English well，you should read English on a daily basis.
focus
vi.给予某物关注
n.焦点
focus on＝concentrate on 关注；集中于
focus one’s attention/mind/energy on/upon把某人的注意力/精力集中于
the focus of attention 关注的焦点
6
单句语法填空/一句多译
(1)Getting addicted to virtual worlds makes it hard for him to focus ____ the other things in real life.
(2)Afraid to be the focus attention of the teacher，she lowered her head.
on
of
(3)由于注意力集中在实验上，他没有听明白我在说什么。
① ，he didn’t catch what I was saying.(现在分词作状语)
② ，he didn’t catch what I was saying.(with的复合结构)
Focusing his attention on/upon the experiment
With his attention focused on/upon the experiment
教材原句　While the Internet can bring people closer together，it can also harm friendships.虽然互联网可以让人们更亲近，但它也会损害友谊。(P15)
while的用法
7
while引导让步状语从句，意为“虽然；尽管”(常放于句首)。
while引导时间状语从句，意为“当……的时候”。
while用作并列连词，意为“然而”，表对比。
while用作名词时，意为“一段时间，一会儿”。
[一词多义]　写出下列句子中while的汉语意思
(1)While walking in the street，I came across one of my former teachers. ____________
(2)While online shopping has changed our life，not all of its effects have been positive. ____
(3)Give your body and brain a rest by stepping outside for a while，exercising or doing something you enjoy. ______
当……的时候
尽管
一会儿
(4)Robert held the view that the Internet did harm to friendship while Cathy thought that it was beneficial to friendship. ____
然而
教材原句　...communicating through a screen makes it more difficult for children to concentrate or show kindness to others.……通过屏幕交流会使儿童更难集中注意力或对他人表示善意。(P15)
make it＋adj./n.＋(for sb. ) to do sth.
8
本句应用了make it＋adj./n.＋(for sb. ) to do sth. 结构，其中it 是形式宾语，more difficult 是宾语补足语， 真正的宾语是后边的不定式。
当复合宾语中的宾语是不定式(短语)、动名词(短语)或宾语从句时，往往把宾语放在它的补足语后面，而用it作形式宾语，放在宾语补足语前。常用的动词有make，think，believe，find，consider，feel等。
单句语法填空/完成句子
(1)Have you made it clear you don’t subscribe to his opinion
(2)(应用文之建议信)You had better make it a rule (practice) speaking English every day.
(3)You are selfish by taking for granted that your parents must do everything for you.
that
to practice
it
(4)(应用文之申请信)我从5岁起就开始学习英语，这让我可以方便地与他人交流。
I have been learning English since I was 5，___________________
.
which makes it possible
for me to communicate with others conveniently
教材原句　It is these skills that enable us to develop lifelong friendships.正是这些技能使我们能够发展终生的友谊。(P15)
强调句型
本句式为强调句型，对主语these skills 进行强调。
其基本构成如下：
It is/was＋被强调部分＋that/who＋其他成分，该句型可强调主语、宾
语、表语或状语等，强调人时可用that/who；强调物只能用that。
句式变化：
一般疑问句：Is/Was it＋被强调部分＋that/who...
特殊疑问句：特殊疑问词＋is/was it that...
单句语法填空/句型转换/完成句子
(1)It is you are to blame for the failure of the experiment.
(2) (读后续写)He didn’t realize how his father loved him until this accident happened.
this accident happened he realized how his father loved him.(用强调句改写)
who
It was not until
that
(3)是这个人把这些东西送到我们社区的吗？
delivered these goods to our community
(4)你是在哪里下载这个软件的？
you downloaded the software？
Was it this guy who
Where was it that
Ⅰ.一词多义
快速阅读下列句子并选出句中加黑词汇对应的意思
account
A.n.描述，叙述　B.n.账目，账户　C.n.考虑　D.vi.解释，说明　E.vi.占……比例
1.Recent pressure at work may account for his abnormal behavior. __
2.The witness gave the police a full account of the traffic accident. __
D
A
3.She sticks to paying the money into her saving account. ___
4.In the school shop，students account for 50% of our customers.
___
5.The direction of the prevailing winds should be taken into account.
___
A.n.描述，叙述　B.n.账目，账户　C.n.考虑　D.vi.解释，说明　E.vi.占……比例
B
C
E
deliver
A.递送，传送　B.发表(演讲)　C.接生
6.The famous doctor has delivered hundreds of babies. ___
7.He delivered a long speech at the graduation ceremony. ___ 8.The mailman delivers letters and parcels every morning. ___
C
B
A
Ⅱ.熟词生义
快速阅读下列句子并猜测句中加黑词汇的意思
1.Do you subscribe to her pessimistic view of the state of the economy？ ___________
2.It is not wise to press them to leave here so early. ______
3.A teacher should not favour any of his pupils. ______
4.I am very content with my life at present. _________
vi.同意，赞同
vt.逼迫
vt.偏爱
adj.满意的