北师大版（2019）必修 第二册Unit 4 Information technology Lesson 3 Internet and friendships课件(共34张PPT)

(共34张PPT)
Unit 4 Information and Technology
Lesson 3 Internet and Friendship
harm n/v
1. harm v.伤害　n.损害;伤害
do no/great/much a lot of harm to
harmful adj 有害的
harmless adj 无害的
Staying up constantly can do harm to/be harmful to your health.
Exercises:
(1) It has been confirmed that too much workout is _________(harm) to our health.
(2) Experts say that eating too much junk food does harm ____ our body.
harmful
to
harm n/v
2. argument n. 论点；论据
They had a heated argument concerning the importance of money.
heated argument 激烈的争论
argue v. 争论,争吵/认为主张 (think)
argue/quarrel with sb about/over sth 与sb因为sth而争辩
argue for/against sth. 支持；赞同/反对
argue sb intolout ofdoingsth说服某人做/不做某事=persuade/convince/talk into doing
trick/cheat sb into doing
They tried to argue him into joining them.
The public argued for the policy that the tax should be reduced.
The governments argue/think that this will help promote understanding across cultures.
Exercises:
(1) We are always arguing with each other ___________ money.
(2) Most students argue _____ the view that the final exam should be cancelled.
(3) We had an _________(argue) with the waiter about the bill.
about/over
for
argument
take the place of=take one’s place
in one’s place=in place of
(1) Personally, I think store shopping will exsit along with online shopping but will never ________(replace)
(2) The teacher replaced the outdated teaching method _______ activity-based method.
(3) Paul just is a ___________(replace) but he sticks to training.
be replaced
with/by
replacement
replacement n. 替代；替代品
replace A with/by B 用B代替A
replace sb as 取代某人成为
replace v.取代/放回原处
hug n/v 拥抱
hug sb= give sb a hug
a big/tight/warm hug
近义词 embrace
~ on = focus on =fix on= put one’s heart to
~one’s attention/efforts/erergy/mind on
When you concentrate on one task you can get it done faster and better.
concerntrate v. 集中注意力，专注 n
concentrated adj. 集中的；专注的
concentration n.集中；专注
with concentration 专注地
Driving requires total concentration.
Exercises:
(1) You can make it with the attention ________(concentrate) on the task.
(2) I need a lot of ____________(concentrate) to complete the task.
(3) Tom concentrated all his attention on __________(rescue) the disabled.
concentrated
concentration
rescuing
be ~about 关心；担忧
be ~with 关心；与……有关
as far as sb be concerned 就……而言
a concerned look 担忧的表情
the people concerned 有关的人
concerned adj. 关心的； 担忧的； 有关联的
concern v 使担忧； 与……有关，涉及
n. 担心（的事）；关系
concerning prep.关于(regarding. with regard to)
What concems me is our lack of preparation for the change.
Please pay attention because this information concerns all of you.
Thank you for your concen.
What are your main concerns as a student
I am writing to inform you of some suggestions concerning traditional customs.
rewarding adj.有益的，有意义的，报酬高的
Traveling along the old silk road is an interesting and rewarding /beneficial experience.
reward n&v.报酬，悬赏,回报
in reward for=as a ~for 作为...的报酬 =in return
~sb with sth 用sth 报答某人
~sb for sth 因为sth报答某人
An act of kindness deserves a reward.
The old lady is offering a reward of $50 to anyone who finds her cat.
Their efforts were rewarded with success in the end.
The police will reward whoever provides useful information.
Exercises:
(1) What he did is very _________________(reward).
(2) The old lady gave Tom some candies ____ a reward for his good behavior.
(3) Our efforts _______________(reward) in the future.
rewarding
as
will be rewarded
additon n.增添,添加;加法
In addition to reading for knowledge, we read for fun and inspiration.
The little girl is not good at addition.
词组
in addition 除此之外(besides, what's more, furthermore, additionally)
in addition to 除..之外还有(as well as, apart from)
add v.增添,添加;补充说
Add some water to the tea, if it is too strong.
"And don't be late," she added.
add sth to sth
add up 相加，加起来
add upto 合计(达到)
additional adj 附加的；另外的
additionally adv. 除此之外
content. n&adj&v
n.内容,目录 （常用pl)
It's advisable to look at the content of a book before buying it.
所含之物（常用pl)
She dropped her suitcase and the contents fell out on the floor
含量 food with high fat content [u]
adj. 满足的，满意的
be ~ with=be satisfied/pleased/happy with
I am content with second place because I know that I tried my best.
v使满足 ~sb=please/satisfy sb
we shoul never content ourselves with the book knowledge.
我们切不可只满足于书本知识。
shallow adj.浅的; 肤浅的，浅薄的
a shallow dish
~waters/sea/layer 浅水水域，浅水层
a shallow insight / argument一个肤浅的见解/论点
basis n.基础,基点
on the basis of 在...基础上
lay a solid basis for 为...打下坚实的基础
on a daily/regular/weekly basis 每天/定期每周
base v以…为基础/n底部基地
Never base your happiness on/upon others’ pain.
Based on historical facts, the novel is attractive.
basic adj 基础的 the basic principles of physics.
basically adv. 基本上 The two approaches are bascially similar.
Exercises:
(1) _____ the basis of those facts, we can reach the following conclusions .
(2) _________(basic), there is not a lot we can do about it.
(3) Our marriage is _______(base) on love rather than money.
On
Basically
based
opinion n.意见，看法,主张
I can't agree with your opinion in this respect.
在这方面我无法赞同你的意见。
seck/ask for sb's opinion 征求某人意见
in one's opinion=in one's view 在某人看来
What's your opinion of... 你认为….怎么样
percent n. 百分比；百分数
percentage n. 百分率；百分比
age 结尾的名词：
1. short----shortage 2. leak----leakage 泄露
3. pack-----package 4. post---postage
focus. n&v
n.中心,焦点 ；焦点,焦距
The coffee shop is the focus of social life in France.
The focus on my camera isn't working properly.
in focus 焦点对准的，清晰的
out of focus 焦点没对准的，不清晰的
Vi/Vt.集中注意力，精力等
The noise made it hard for me to focus on my work.
Focus your attention on your class. 全神贯注
focus on =focus one’s attention on =concentrate one’s attention on =be focused on =be lost in =be absorbed in = be occupied in =be burried in =be devoted to 全神贯注于
maintain n&v.
v维修,保养 ~ a machine/a house/a car/one’s skin
v维持,保持 ~ life/law and order 维持生命/治安
~ a balance/ a frendship /a relationship.
The two countries have always maintained friendly relation for many years.
v供养 ~ one’s family
limiting adj. 限制性的；局限的
~ factors 限制性因素
limited adj 有限的 ~ materials limitless adj 无限的 ~potential
limit n/v限制，限定 be limited to
v. ~sth to sth We must limit the composition to 1000 words.
n. set a ~ to We should set a limit to what our students can do.
within the limit of在…范围内
speed ~ a time limit in the city limits
He tried my patience to its limits.他把我逼得忍无可忍。
There is a limit in life but no limit in konwledge.
brief adj.简洁的;短暂的,短期的
a brief report a brief stay
词组
in brief 总之( in short, in a word, all in all ,on the whole)
to be brief/briefly speaking 简言之
creative adj.创造性的
He is very creative, although not all his ideas have come true.
create v.创造
The company is trying to create ayoung energetic image.
creatively adv.
creation n.创作,创造[u]; 作品[c]
creativity n.创造性,创造力
creator n 创造者
creature n.生物
authority n. 权威,当局,官方/权威人士，专家,泰斗
challenge one’s ~ 挑战（某人的）权威
health ~
The authorities have refused to let him enter the country.
Heisuniversally recognized as an authority on Russian affairs.