北师大版英语必修二 Unit 4　Cyberspace知识点课件61张

课件61张PPT。
必修模块 2　Unit 4　 Cyberspace
1.harm vt.& n.损害;伤害;危害
教材原句
①someone who does terrible things 　to harm countries????, governments and people做恶劣的事情危害国家、政府和人民的人重点单词单句填空
②Doctors always tell us that drinking too much does harm 　to???? our health,but some people don't care.
③As far as I'm concerned, there is no harm in　making????(make) an apol-ogy to him first.点拨
(1)do sb./sth. harm=do harm to sb./sth.对……有害;损害……
mean no harm没有恶意
cause harm to对……造成危害
There is no harm in doing sth.不妨做某事;做某事无害处
(2)harmful adj.有害的
harmful gas有害气体
harmful effects不良/有害影响harmful radiation有害辐射
a harmful mood不良情绪
be harmful to对……有害的
harmless adj.无害的;无恶意的2.affect vt.影响;感动;(疾病)侵袭;使感染
教材原句
①Peter Taylor finds out how computers and the Internet are 　going to af-fect???? our lives.彼得·泰勒发现了电脑和因特网将如何影响我们的生
活。单句填空
②Ordinary soap, used correctly, can deal with bacteria 　effectively????(ef-fective).(2018北京卷单项填空)
③While online shopping has changed our life , not all of its 　effects????(effect) have been positive.(2016江苏卷)
④With the government's aid, those 　affected???? (affect) by the earth-quake have moved for the new settlements.单句改错
⑤No one can deny the effects parents have with their children.
　with→on????
句式升级
⑥I was deeply affected by the film and couldn't help weeping.
→　Deeply affected by the film????, I couldn't help weeping.(过去分词短语作状语)完成句子
⑦What parents say and do 　has a life-long effect on????their children.
父母所说的和所做的对他们的孩子有着终身的影响。写作微练
⑧这些关于国外文化的文章对我们的英语学习产生了良好影响。
　These articles about foreign culture(s) have a good effect/influence on our English study.????点拨
(1)affect sb. to tears把某人感动得流泪
be affected with high fever发高烧
(2)effect n.结果;影响
have an effect/influence on对……有影响
effective adj.有效的;起作用的【辨析】3.suggest v.建议,提议;暗示,表明
教材原句
①Tom, can you 　suggest???? any good books 　for???? my projects? 汤姆,你能为我的项目推荐一些好书吗?单句填空
②Bill suggested　holding????(hold)a meeting to discuss what to do during the vacation.
③He came to my class every day,but his attitude suggested that he　was????
(be)not really interested in the subject.
④My mom suggests that we 　(should) eat????(eat)out for a change this weekend.
⑤The manager put forward a 　suggestion???? (suggest) that we should have an assistant and there is too much work to do. (2016天津卷)
⑥　It???? was suggested that I learn to help others when necessary.
句式升级
⑦He advised us to take all the factors into consideration.
→He made a suggestion that 　we (should) take all the factors into consid-eration????.(改为同位语从句)点拨
(1)suggest意为“提议,建议”时,其后宾语从句中谓语动词用虚拟语气,即should+动词原形,should可以省略。
?
(2)suggest意为“暗示,表明”时,其后宾语从句用陈述语气。【发散思维】
suggestion n.建议;提议(可数名词)
make/offer/give a suggestion提供一条建议
ask for a suggestion征求一条建议
at/on sb.'s suggestion根据某人的建议,在某人的提议下4.mean v.意思是;意味着;打算;意欲 adj.卑鄙的;低劣的;吝啬的,小气的
教材原句
①Cathy, 　do you mean???? we'll use the computer to travel around the
world, entering and exiting countries in seconds and visiting all the histori-cal sites?凯茜,你的意思是我们将使用电脑去环游世界,快速出入不同的国家并参观所有的历史遗迹吗?单句填空
②In his opinion, it is more 　meaningful???? (meaning) to travel in foreign countries.
③I still remember 　visiting???? (visit) a friend who'd lived here for five years and I was shocked when I learnt she hadn't cooked once in all that time.(2018浙江卷)
④After receiving the Oscar for Best Supporting Actress, Anne Benedict went on 　to thank???? (thank) all the people who had helped in her career. 完成句子
⑤—Why?This is the third time you have missed the lecture!
—I　hadn't meant????to.I was hurrying to school when something urgent happened to me.
——怎么回事?这是你第三次错过讲座了!
——我没想这样。我正往学校赶,这时候有紧急的事情发生了。
⑥I've been　meaning to call????my parents for days.
几天来我一直打算给父母打电话。⑦This new order will　mean working????overtime.这个新订单将意味着加班工作。
⑧At such an advanced age they can no longer take　a meaningful role????in the company.在如此高龄的时候,他们已不能再在公司中担当重要角色。点拨
(1)mean doing sth.意味着做某事
mean to do sth.打算做某事
(2)be meant for为……而准备的
(3)meaning n.意思,意义;含义;思想
meaningful adj.重要的,意味深长的
【点津】　had meant to do sth.表示“本打算做某事” 【发散思维】　几组接不定式和动名词意思有区别的词或短语:re-
member to do sth.记住要做某事,remember doing sth.记得做过某事;for-get to do sth.忘记要做某事,forget doing sth.忘记做过某事;go on to do sth. 继续做某事(内容发生改变),go on doing sth. 继续做某事(内容未变);mean to do sth.打算做某事,mean doing sth.意味着做某事;regret to do sth.遗憾要做某事,regret doing sth.遗憾做过某事;stop to do sth.停下来做另外一件事,stop doing sth.停止正在做的事;try to do sth.尽力做某事,try doing sth.试着做某事。5.population n.人口;全体居民
教材原句
①It has 　a???? population of just under a million people and is located on North Island.单句填空
②It is reported that the population of that city 　has reduced???? (reduce) by 5 percent since 2010.
③At the beginning of the twentieth century, the world's population 　was????
(be) about 1,700 million.
④Two years later, Dawson was one of the largest cities in the West, ????wit????
a population of 30,000.(2018课标全国Ⅲ阅读理解)完成句子
⑤Canada is the second largest country in the world 　with a population of more???? than thirty million.加拿大是世界上第二大国家,人口超过三千万。
⑥Ten years ago the population of our village was twice as 　large as that of theirs????.十年前,我们村的人口是他们村人口的两倍。点拨
(1)the population of...作主语时,谓语动词用单数形式;分数、百分比等+of the population作主语时,谓语动词用复数形式。
(2)have a population of有……人口
with a population of有……人口
the population of+地点名词+is larger than that of+地点名词 ……地方的人口比……地方的多
What's the population of+地点名词?……地方的人口是多少?
【点津】　表达人口多或少时,用large或small,不用many,much,few或lit-tle。6.settle v.定居;平静下来;解决(分歧、纠纷等)
教材原句
①The history of the city goes back 650 years when the Maoris 　settled????(settle) in the area.点拨
(1)settle down定居下来;安静下来;舒适地坐下/躺下
settle down to(doing)sth.开始认真对待某事
settle in/into sth.安顿下来;适应新环境/新工作
(2)settler n.移民;殖民者
settlement n.定居点;解决7.view n.景色,风景;视野;看法,意见 vt.观察;考虑;看待
教材原句
①In the city, you can enjoy 　an amazing view???? from the Sky Tower, which is the city's tallest Tower.在城市里,站在城市最高的塔——天空塔上,你可以欣赏到令人惊异的景色。单句填空
②　In???? my view, new architectural styles can exist perfectly well along-side an older style.
③Person in Asian cultures may view silence 　as???? a sign of respect. (2016课标全国Ⅰ)完成句子
④　In my view/opinion????(我认为),this plan is unrealistic,so I decide not to take it.
⑤　In view of????his youth, the police have decided not to press charges.
鉴于他年纪很轻,警方已决定不予起诉。点拨
(1)in one's view=in the view of sb.=in one's opinion在某人看来
in view of鉴于,考虑到
in view/sight在视野范围内
out of view/sight在视野范围外
come into view进入视野,出现在眼前
point of view观点;态度;意见
take the view that...持有……观点
(2)view...as...把……视为/看作……8.average adj.平均的;平常的;普通的,一般的 n.平均,平均数;平均标准,一般水准 v.平均为,算出……的平均数
教材原句
①...　the average temperature???? in January (summer) is 23.4℃...……1月份(夏季)的平均气温是23.4℃……单句填空
②Tom's work at school is　above???? the average, while Harry's is below the average.
③The library now gets 　an???? average of five visits a day.完成句子
④His living standards are　above average????(高于一般水平).
⑤　On average????we would be spending $300 per day.
我们平均每天要花费300美元。 点拨
above/below(the)average 在平均水平以上/以下
an average of+数字 平均为……
on average平均;按平均计算
the average of... ……的平均数
an average speed平均速度
average power平均功率
average temperature平均温度1.get in touch (with) (与……)取得联系
教材原句
①Get 　in???? touch.重点短语单句填空
②To make it easier to get in touch 　with???? us, you'd better keep this card at hand.(2016北京卷)
③You should give Bob a ring because you haven't been　in???? touch with him for ages.单句改错
④From then on, we've kept touch with each other through e-mails.
　kept∧→in????完成句子
⑤No one whom he has taught seems ever to　lose touch with him????.
他所教过的学生似乎没有一个和他失去联系。
⑥I tried to　get in touch????with you this afternoon.
我今天下午曾试图与你取得联系。
⑦How long have you　kept in touch/been in touch????with John?
你和约翰保持联系多久了?点拨
?
【点津】　get in touch with与lose touch with均为短暂性动词短语,不可与一段时间连用。2.be up to 从事,忙于;多达;达到;直到……为止;由……决定
教材原句
①What are you up 　to???? this weekend, John? 语境识意(写出下列句中up to的含义)
②It's 　up to???? you whether we accept the present or not.?　由……决
定????
③California condors(秃鹫) are North America's largest birds, with wing length of up to 3 meters. ?　达到????单句填空
④After his illness, Tom was no longer up to 　doing???? (do) the work.
⑤Up to now, the program 　has saved???? (save) thousands of children who would otherwise have died.
⑥Last year, his total income,with his reward added to, added 　up???? to 15,000 yuan.单句改错
⑦All the players failed to live up their coach's expectations of them.
　up∧→to???? 点拨
be up to(doing)sth.能胜任(做)某事
be up to sb.(to do sth.)由某人来决定(做某事)
【联想】　含有up to的常用短语:
add up to总计
come up to接近;相当于
look up to敬仰
live up to不辜负,达到wake up to意识到
up to date现代的;最新的
up to standard达到标准;合乎标准
up to the present到现在为止
up to now=so far=till/until now到目前为止1.make+宾语+宾语补足语
教材原句
①In 1985, the New Zealand government made the whole country 　a???? nuclear-free zone...重点句型单句填空
②Mr. Brown was glad to make himself clearly 　understood???? (under-stand).
③He thinks youngsters shouldn't be made　to go???? (go) to school too early.
④Knowing the causes of anger can make us 　examine????(examine) our behavior, and correct bad habits.(2018北京卷七选五)单句改错
⑤What makes this shop difference is that it offers more services.
　difference→different????完成句子
⑥He is very popular among his students as he always tries to 　make them interested in???? his lectures.他非常受他的学生欢迎,因为他总是试图让他们对他的演讲感兴趣。 点拨
(1)句式“make+宾语+宾语补足语”的常用结构如下:
make+宾语+n./adj./adv.
make+宾语+介词短语
make+宾语+do sth.(do与宾语是主动关系)
make+宾语+done sth.(done与宾语是被动关系)
(2)make oneself understood让别人明白/理解自己
【点津】　该句式的被动语态结构中,动词原形前需加不定式符号to。
此外,make不接doing作宾语补足语。
2.It is+adj.+that从句
教材原句
①...“　It???? is clear that we are going to see a huge growth in shopping on the Internet.” 单句改错
⑥I think that it is foolish for you to do such a thing.
　for→of????
⑦It is by no means clear that the president can do to end the strike.
　that→what????
⑧Everyone is very friendly and it doesn't matter how you have lived there for a short or a long time.
　how→whether????完成句子
⑨It suddenly occurred 　to him that he had left???? his keys in the office.他突然想起,他把钥匙忘在办公室了。
⑩It doesn't matter　whether you turn right or???? left at the crossing—both roads lead to the park.在十字路口无论你向右拐还是向左拐都没关系,两条路都通向公园。句式升级
?We should learn English well.
→It is　important for us????to learn English well.(important)
?Everyone knows that failure is the mother of success.
→　It is known to all that????failure is the mother of success.(it作形式主语)写作微练
?众所周知,如果你不经常锻炼,你就不会保持良好的健康。
　It is known to all that unless you exercise regularly, you won't keep good health.????点拨
在该句式中,it为形式主语,真正的主语是that引导的主语从句,类似结构还有:
(1)It+be+名词+主语从句(如:It is a fact/pity/shame/surprise that...;It is no wonder that...)
【点津】　此时主语从句的引导词不一定用that,而是需要根据情况使用。
(2)It+be+过去分词+主语从句(如:It is believed/reported/said/thought that...)
(3)It+不及物动词+主语从句(如:It occurred to sb. that...某人突然想起……;It doesn't matter how/whether...)
【联想】　it作形式主语的不定式的复合结构:
(1)It's+adj.+for+sb.+to do sth.(形容词是描述不定式动作的。如:danger-ous,difficult,easy,important,impossible,interesting等)
(2)It's+adj.+of+sb.+to do sth.(常可改为“sb.+be+adj.+to do sth.”)(形容词是描述人的性格和品质方面的。如:brave,careless,clever,cruel,foolish,
kind,nice,stupid等)
3.find+it+adj.+to do sth.
教材原句
①But I still find it hard 　to imagine????(imagine).单句填空
②I find it hard 　to stop???? (stop) and dancing reminds me that I'm alive.(2018课标全国Ⅲ七选五)
③Susan made it clear to me　that???? she wished to make a new life for herself.单句改错
④I think it very importance to make more friends abroad.
　importance→important????
⑤People felt it impossible of man to fly into outer space some years ago.
　of→for????
⑥New technologies have made it possibly to turn out new products faster.
　possibly→possible????句式升级
⑦We should speak more English. We think it is very important.
→　We think it very important to speak more English.????(it作形式宾语,不定式作真正宾语)点拨
在该句式中,it为形式宾语,真正的宾语是不定式短语,形容词在句中作宾补(宾补也可以是名词),此外,真正的宾语还可以是宾语从句。常用于该句式的动词有consider,think,find,feel,make,believe等。该句式可归纳为:
动词+it+adj./n.+to do sth./that从句
【点津】　在该句式中,不定式之前有时可加上“for+名词/代词”,此时名词/代词是动词不定式的逻辑主语。