1、Unit 4 Information and TechnologyLesson 3 Internet and Friendship1.harm v.伤害伤害n.损害损害;伤害伤害教材原句 Do you think the Internet helps or harms friendships?Staying up constantly can do harm to/be harmful to your health.do harm to=be harmful to 对对.有害有害harmless adj.无害的无害的Exercises:(1)It has been confirmed that
2、 too much workout is _(harm)to our health.(2)Experts say that eating too much junk food does harm _ our body.harmfulto2.argument n.论点；论据论点；论据教材原句 Identify one sentence for each argument that states this general idea.eg:They had a heated argument concerning the importance of money.The public argued f
3、or the policy that the tax should be reduced.Tom argued with his parents about/over buying a new car.heated argument 激烈的争论激烈的争论argue for/against sth.支持；赞同支持；赞同/反对反对argue with sb.about/over sth.就就.和和.争论争论Exercises:(1)We are always arguing with each other _ money.(2)Most students argue _ the view that
4、 the final exam should be cancelled.(3)We had an _(argue)with the waiter about the bill.about/overforargument3.replace vt.取代；接替取代；接替教材原句 Firstly,talking online is no replacement for face-to-face contact images really cannot replace a real-life smile or hug.eg:They replaced their old equipment with t
5、he fancy one.replace A with/by B 用用B代替代替Areplacement n.替代；替代品替代；替代品代替：代替：take the place of=take ones placein ones place=in place ofExercises:(1)Personally,I think store shopping will exsit along with online shopping but will never _(replace)(2)The teacher replaced the outdated teaching method _ acti
6、vity-based method.(3)Paul just is a _(replace)but he sticks to training.be replacedwith/byreplacement4.concentrate vi.专注；集中注意力专注；集中注意力教材原句 According to a parenting expert,Denise Daniels,communicating through a screen makes it more difficult for children to concentrate or show kindness to others.eg:W
7、hen you concentrate on one task you can get it done faster and better.Driving requires total concentration.concentrate on.全神贯注于全神贯注于.concentration n.集中；专心集中；专心全神贯注于：全神贯注于：focus on=focus ones attention on=concentrate ones attention on=be lost in=be absorbed inExercises:(1)You can make it with the att
8、ention _(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.concentratedconcentrationrescuing5.concerned adj.关心的；关切的关心的；关切的教材原句 Some people are only concerned with their online popularity.eg:(1)Her job is somet
9、hing concerned with computers.(2)As tourism develops,people are becoming increasingly concerned about the environment.(3)As far as I am concerned,riding bikes is one of the solutions to air pollution.(4)I am writing to inform you of some suggestions concerning traditional customs.be concerned with s
10、th.关注关注.;与与.有关有关担心；担忧担心；担忧as far as sb be concerned 在某人看来在某人看来concerning prep.关于关于rescuingExercises:(1)My mom is really _(concern)with the health of everyone in our families.(2)What _(concern)me now is our lack of preparation for the change.(3)He asked several questions _(concern)the future of the c
11、ompany.concernedconcernsconcerning6.rewarding adj.有益的；有意义的；值得的有益的；有意义的；值得的教材原句 .though we know that the number of“likes”or followers cannot compare to having long-term and rewarding friendships.eg:(1)Zhang Tian thought the things he did were rewarding.(2)Difficult as the job is,the finanical rewards
12、 are great.(3)The police will reward whoever provides useful information.n.报答；报酬；奖赏；悬赏金报答；报酬；奖赏；悬赏金vt.报答；奖赏；酬谢报答；奖赏；酬谢in reward for.=as a reward for.作为对作为对.的回报的回报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)
13、in the future.rewardingaswill be rewarded7.content n.内容内容教材原句 In addition,a lot of content posted on social media is shallow or trivial.eg:food with a high fat content It is advisable to look at the contents page of a book before buying it.I am content with the second place,because I know I tried my
14、 best.n.含量含量be content with=be pleased/satisfied with 对对.满意满意n.目录（用复数）目录（用复数）8.basis n.基础；基点基础；基点教材原句 Friendships are built on the basis of trust.eg:The book is based on a true story.the basic principles of physics.The two approaches are bascially similar.on the basis of 在在.基础上基础上be based on.以以.为根据为
15、根据basic adj.基本的；基础的基本的；基础的basically adv.基本上基本上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.OnBasicallybased9.percent n.百分比；百分数百分比；百分数教材原句 And with online communicat
16、ion you can never be 100 percent sure that the people you are chatting to are being honest about who they are.eg:What percentage of the students is near-sighted?percentage n.百分率；百分比百分率；百分比+age 变名词的词：变名词的词：1.short-shortage 2.leak-leakage3.pack-package 4.post-postage10.limiting adj.局限的；限制性的局限的；限制性的教材原句 Traditional ways of communicating can be limiting and take time.eg:a time limitin the city limits He tried my patience to its limits A lack of formal education will limit your job opportunities.limited adj.有限的 limitless adj.无限的 n.限制；限度限制；限度n.界限；边界界限；边界n.极限极限vt.限制限制 limit.to.将将.限制在限制在.内内
