专题04 必修第二册 Unit4 Information Technology 重点单词变形，词组，短语，句型（

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专题04 必修第二册
Unit4 Information Technology 重点单词变形，词组，短语，句型

B1U4重点单词变形
1．convenience n．方便，便利→convenient adj.方便的，便利的
2．effect n．效应；影响→effective adj.有效的→effectively adv.有效地；实际上
3．addicted adj.对……着迷的；沉迷的→addict vt.使沉溺；使上瘾 n．对……入迷的人→addiction n．上瘾；入迷→addictive adj.上瘾的；入迷的
4．recommendation n．建议，提议；推荐→recommend v．建议，劝告；推荐，介绍
5．explore vt.探究；探讨；探险→exploration n．探险→explorer n．探险者
6．admit vi.& vt.承认→admission n．承认；允许进入；入场费
7．trick vt.欺骗，诱骗，哄骗→tricky adj.狡猾的，诡计多端的
8．identity n．身份；特征→identify v．确认；识别
9．variety n．多样化，变化→various adj.各种各样的→vary v．(大小、形状)不同；变化；不等
10．creativity n．创造力；独创性→create v．创造→creative adj.创造性的；有创造力的→creation n．创造；创作
11．obviously adv.显而易见地，明显地→obvious adj.明显的
12．selection n．供选择的同类物品；选择→select vt.选择
13．concern n．担忧，忧虑vt.与……有关；使担心→concerned adj.关切的，关心的→concerning prep.关于
14．accommodation n．住处；住宿→accommodate v．容纳；提供住宿
15．powerful adj.效能高的；强有力的；强壮的→power n．权力；能力→(反义词)powerless adj.无影响力的；无权的；无能为力的
16．reality n．现实；真实→real adj.真的→really adv.真实地
17.ensure vt.确保，保证→sure adj.确信；确知；肯定；有把握；一定，必定
18．deliver vi.& vt.递送；传送→delivery n．递送；传送
19．harm vt.& n．伤害，损害→harmful adj.有害的→(反义词)harmless adj.无害的
20．argument n．论点；论据→argue v．争论
21．replace vt. 取代；接替→replacement n．替换；替代品；替代者
22．concentrate vi.专注，专心；集中注意力→concentration n．专心
23．rewarding adj.有益的；有意义的→reward v．& n．回报
24．addition n．增添；添加→additional adj.补充的，额外的，附加的
25．basis n．基础；基点→base vt.以……为基础→basic adj.基本的
26．limiting adj.局限的，限制性的→limit v．限制→limited adj.有限的
27．brief adj.简洁的，简明的→briefly adv.简短地

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B1U4重点词组再现
根据语境及汉语提示填入合适的短语
1．However, it is a pity that some people can't turn up at such a great festival for a variety of(各种各样的) reasons.
2．He wanted to decide for himself instead of(而不是) blindly following his parents' advice.
3．I am looking forward to(盼望着) visiting the art gallery next week.
4．The polluted water more or less(或多或少) influences people's health.
5．That photograph doesn't look like(看起来像) her at all.
6．He stood up and began to move around(四处走动).
7．He admits that recently he has been addicted to(沉迷于) playing computer games.
8．Known as(作为……而出名) the automobile capital of the world, Detroit lies in the north of the USA.
9．It took her a lot of time to focus on(关注) preparing her classes and correcting her students' homework.
10．As the average age of the population increases, there are more and more old people to care for(照顾).
11．Statement should be made on the basis of(在……基础上) fact.
12．—Why didn't they stay in touch with(与……保持联系) each other in those years?
—The reason was that communications were very poor in that time.
13．The hotel itself can accommodate 80 guests and, in addition(除此之外), there are several self-catering apartments.
14．If you are concerned with(关心……) the event, you'd better have a talk with our teacher.
15．A good book can be compared to(被比作) a good friend.
16．I should point out(指出) that not one of these paintings is original.

B1U4重点句型
By the late 1990s，they had been used in web chats.
20世纪90年代末，他们(虚拟形象)已被用于网络聊天。
[先练]——单句语法填空/完成句子
①By the time the doctor arrived at the spot，the patient had died (die)．
②By the time Jane gets home，her aunt will have left (leave) for London to attend a meeting.
③By now，five villagers have been attacked (attack) by the hairy creature.
④到目前为止，我的五个外国朋友，包括你，已经被邀请去郊游了。(应用文之活动介绍)
By now，five of my foreign friends，including you，have been invited to the outing．
⑤这段视频是在春节前的星期一发布的。到那一天结束时，它已经有超过1000次的浏览量了。
The video was posted the Monday before the Spring Festival. By the end of that day，it had had over 1，000 views.
[后归纳]
(1)“by＋现在的时间/从句(现在时)”作状语时，句子/主句谓语一般用现在完成时。
(2)“by＋过去的时间/从句(过去时)”作状语时，句子/主句谓语一般用过去完成时。
(3)“by＋将来的时间”作状语时，句子谓语一般用将来完成时。
According to a parenting expert，Denise Daniels，communicating through a screen makes it more difficult for children to concentrate or show kindness to others.
根据育儿专家丹尼斯·丹尼尔斯的说法，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。
[先练]——单句语法填空/完成句子
①The author's brief introduction made it possible for us to learn (learn) about the content of the book.
②Susan made it clear to me that she didn't want to subscribe to the newspaper.
③ I'd like it if you could accept our sincere invitation to attend the upcoming graduation celebration.
④(2021·浙江卷6月，读后续写)我曾经理所当然地认为父母应该在我需要的时候给我钱，但那时我觉得我有责任为家庭尽我的一份力。
I used to take it for granted that parents should give me money whenever I needed it，but at that time I felt it my duty to do my part for the family.
[后归纳]
当不定式短语或从句等作宾语时，多用it作形式宾语，构成的句型主要有：
(1)consider/think/suppose/feel/find/make/believe＋it＋ adj./ n．＋to do sth./that ...
(2)类似句型还有：like/dislike/hate/love/appreciate/enjoy/owe＋it＋when/if从句
(3)take it for granted that...　　认为……理所当然
see to it that ...  确保……
depend/rely on it that ...  指望……
While the Internet can bring people closer together，it can also harm friendships.
虽然互联网可以拉近人们的距离，但它也会伤害友谊。
[先练]——完成句子
①正如古老谚语所说：“趁热打铁。”
As the old saying goes，“Strike while the iron is hot．”
②尽管我们不能预测未来会发生什么，但我们可以用决心和爱指引自己。(读后续写之升华句)
While we can't predict what will happen in the future，we can guide ourselves with determination and love.
③参观这次展览的时候，我们不仅可以欣赏民间艺术品，而且可以学到很多东西。
While (we are) visiting this exhibition，we can not only enjoy the folk art works but also learn a lot.
④(2022·全国乙卷，书面表达)根据上面的图表，18%的学生更喜欢阅读英语书籍，12%的学生访问英语学习网站。
On the basis of the above chart，18% of the students prefer to read English books while 12% access to English learning websites．
[后归纳]
while既可用作连词，也可用作名词。
(1)表示“当……的时候”，引导时间状语从句；
(2)表示“虽然；尽管”，引导让步状语从句，相当于though或although；
(3)表示“而；却”，是并列连词，构成并列句；
(4)用作名词，表示“一会儿；一段时间”。
[名师点津]　①while表示“虽然”时，不和连词but连用。　②while还可以引导省略结构，后直接跟现在分词、过去分词、名词、形容词或介词短语。
You can stay in touch with friends no matter where you are or what you are doing.
无论你在哪里，在做什么，都可以和朋友保持联系。
[先练]——单句语法填空/完成句子
①By setting up a family blog，we can conveniently share our experiences wherever we are.
②By the way，whatever difficulty you meet with，I'm always here waiting for you to turn to.
③(2022·全国乙卷，满分作文)无论我们选择什么方法，是我们内在的兴趣和热情让我们在英语上取得巨大的进步。
Whatever method we choose，it is our inner interest and enthusiasm that allow us to make great progress in English.
④无论何时你需要帮助，我真诚地希望你能毫不犹豫地联系我。
Whenever/No matter when you need help，I sincerely hope that you can get in touch with me without hesitation.
[后归纳]
(1)“no matter＋疑问词”只能引导让步状语从句，可放在主句前或主句后。
(2)whenever，wherever，however引导让步状语从句，相当于no matter when/where/how；
(3)whatever，whoever，whichever，whomever既可引导名词性从句，也可引导让步状语从句；在引导让步状语从句时相当于no matter what/who/which/whom。
The use of several avatars can also be a risk，as people can use avatars to cheat others online.
使用多个虚拟形象也可能会带来风险，因为人们可以在网上使用虚拟形象来欺骗他人。
[先练]——猜测加黑词的含义/完成句子
①As the bus got closer and closer to the town，Tom was excited. 随着
②Just as an old saying goes，“Do in Rome as the Romans do.”正如
③I hope you can just do the work as I told you.按照
④I oppose you continuing with the training，as you haven't recovered from the knee injury. 因为
⑤(2020·新高考Ⅰ卷)尽管我们又累又饿，然而我们从这次5公里的越野比赛中受益很多。
Exhausted and hungry though/as we were，we benefited a lot from the five-kilometer cross-country running race.(倒装句)
⑥随着我们长大，我们被期望过健康的生活。
As we grow up，we are expected to lead a healthy life.
[后归纳]
as作连词，可引导以下几种从句：
(1)as引导原因状语从句，意为“由于、因为”；
(2)as引导时间状语从句，意为“当……时候、随着”；
(3)as引导方式状语从句，意为“按照……、照着……”；
(4)as引导让步状语从句，意为“虽然、尽管”，且从句用倒装语序，即将后面的表语、状语提到前面；
(5)as引导定语从句，意为“正如、正像”。
6．“This/That is why ...”意为“这/那就是……的原因”　
That's why I believe that books about foreign cultures or imaginary worlds are the best!
那就是为什么我认为关于外国文化或想象世界的书是最好的！
[先练]——单句语法填空/完成句子
①I heard it is because children are lighter and the horses can run faster and farther.
②我不能信守诺言的原因是我的家人要去机场为我叔叔送行。(道歉信)
The reason why I can't keep my word is that my family are going to the airport to see my uncle off.
③我之所以喜欢西方音乐，是因为贝多芬的《命运交响曲》给了我很多灵感，让我在困难中继续前行。(应用文之音乐)
The reason why I love western music is that the piece of music named Fate Symphony by Beethoven has inspired me a lot to move on when I am in difficulties.
[后归纳]
(1)This/That/It is because ...“这/那是因为……”，because引导表语从句。
(2)The reason why ...is/was that ...“……的原因是……”，why引导定语从句并在从句中作状语；that引导表语从句。

B1U4核心词汇全面攻破
[先练]——单句语法填空/完成句子
①Faced with the surveillance video(监控录像)，he had to admit cheating/having cheated (cheat) in the exam.
②At last，she had to admit her opinions to be (be) much too shallow.
③Gordon says the HUNCH program has an impact on college admissions (admit) and practical life skills.
④没有您的慷慨指导，我就不可能被这么好的大学录取。(应用文写作之感谢信)
Without your generous guidance，I couldn't have been admitted to/into such a good university．
⑤(2020·全国卷Ⅰ，应用文写作之人物介绍)既幽默又有耐心，程老师被认为是最好的老师之一。
Being humorous and patient，Mr.Cheng is admitted to be one of the best teachers．
[后归纳]
(1)admit doing/having done sth.　 承认做/做过某事
admit sb./sth. to be  承认某人/物是……
admit (that)  承认……
(2)be admitted to/into  被接收(入学/入院/入党等)；被录取
(3)admission n．　承认；准许进入；入场费
[名师点津]　admit的过去式、过去分词和现在分词分别为：admitted，admitted，admitting。
[先练]——单句语法填空/完成句子
①The students are concerned about/for not only the training curriculum but also the details of each course.
②(2020·天津卷7月，满分作文)I am writing to tell you something concerning the coming-of-age ceremony held in our school.As far as I am concerned，it makes us aware of the responsibility we are shouldering as adults.(concern)
③(2022·北京卷，书面表达)我写信是想邀请你参加我们关于如何提高英语写作的在线谈话。在我看来，作为一个母语为英语的人，你可以给我们一些实用的小窍门。
I am writing to invite you to our online talk concerning/which is concerned with how to improve English writing．As far as I am concerned，as a native speaker，you can offer us some practical tips.
④(2022·全国乙卷，满分作文)在我看来，学生们应该进行更多的听说练习，以便培养交流技能。
In my opinion/As far as I am concerned/From my point of view，students should do more listening and speaking practice so that they can develop their communication skills.
⑤越来越多的人担心，像吃垃圾食品和缺乏锻炼等问题仍然存在于我们青少年中。
There is a growing concern that problems like eating junk food and lacking exercise still exist among us teenagers.
[后归纳]
(1)show/express concern for/about　　对……表示关心
(2)concerned adj.  关切的，关心的；担心的；有关的
as far as...be concerned  就……而言
be concerned about/for  对……担心/关心
be concerned with  涉及……；与……有关
(3)concerning prep.  关于
[名师点津]　表示“就某人而言”的短语还有in one's opinion/view，from one's point of view等。
[先练]——单句语法填空/完成句子
①(2023·全国甲卷)Well，when I work，I often concentrate so much on what I'm doing that I may have a hard time dealing with things that come up unexpectedly.
②If you concentrate your energy on studying (study) English，you will master the language.
③(2020·全国卷Ⅰ，满分作文)It is our teacher's concentration (concentrate) and friendliness that win our respect.
④专注于他的实验，因此他没有时间照顾家庭。
With his attention concentrated on his experiment，he had no time for his family.
⑤(2021·全国乙卷，满分作文)然而，长时间看屏幕会严重损害我们的视力，更不用说我们会因为缺乏自律而不能很好地集中精力于学习了。
However，long screen time would badly damage our eyesight，not to mention that we fail to concentrate well on learning for lacking self-discipline．
⑥图片中，一个穿着破旧衣服的男孩正在一张旧木桌旁专心地看书，桌上有一堆书。(图画介绍)
In the picture，a boy，in worn clothes，was concentrating on his book at an old wooden table，on which there was a pile of books.
[后归纳]
(1)concentrate (one's attention/efforts) on (doing) sth.　专注于(做)某事
concentrate on/upon (doing) sth.  集中精力于(做)某事
(2)concentration n.  专心；专注
(3)concentrated adj.  集中的
4．confirm vt.确认；证实；使确信
[先练]——单句语法填空/补全句子/完成句子
①They worked out an effective method，which was confirmed (confirm)by the leadership.
②The recent airplane crash confirms my belief that (坚定了我的信念) stronger safety regulations are needed.
③(2022·浙江卷，应用文写作之活动介绍)已经确认我们将去爬山，在那里我们可以野餐。
It has been confirmed that we will go to climb a mountain，where we can have a picnic.
④如果您能尽早在你方便时确认参加，我们将不胜感激。(邀请信)
We would appreciate it if you could confirm your participation at your earliest convenience.
[后归纳]
(1)confirm a theory/rumour　　证实一种理论/谣言
confirm one's belief  坚定某人的信念
confirm that ...  确定/证实……
(2)It has been confirmed that ...  已确定/证实……
5．content vt.使满足n．满足；内容；所含之物；目录adj.满意的，满足的　
[先练]——单句语法填空/完成句子
①They content themselves (they)with their present situations，and they will surely make no difference in life.
②We finally reached the top of Mount Huang，where we could enjoy the breathtaking view to our heart's content.
③My parents are content to live (live) in the countryside，where the air is fresh and clean.
④我们永远不能仅仅满足于书本知识，应该把理论应用到实践中去。
We should never content ourselves with book knowledge only and should apply theory to practice.
⑤(2021·新高考Ⅰ卷，应用文写作之事物介绍)它不仅为我提供了一个开阔视野的平台，而且它丰富的内容也能激发我对英语的热情。
Not only does it supply me with a platform to broaden my horizons， but its rich content can also spark my burning passion for English．
[后归纳]
(1)content oneself with　尽情地，满足地
(2)to one's heart's content  尽情地
(3)be content to do sth.  愿意做某事
be content with ...  对……满足/满意
[名师点津]　表示“对……满意”的常用短语：be content with；be pleased with；be satisfied with；be happy with。
[先练]——单句语法填空/完成句子
①The novel is partly broken when delivered to me.What's worse，some pages of the book are damaged and stained，no longer readable.
②After that，I set out to read widely for an inspiring topic，wrote a speech，and practiced its delivery (deliver) in beautiful pronunciation with good public speech skills.
③(2020·全国卷Ⅱ，应用文写作之活动介绍)我们开始帮忙摘桃子，然后让人把它们送到农民家里。
We began to help pick peaches and then had them delivered to the farmers' houses．
[后归纳]
(1)deliver sth. to ...　　投递/运送某物给……
deliver a speech  发表演说
deliver a baby  接生
deliver the goods  如约实现；如期完成；履行诺言
(2)delivery n.  分娩；递送；演讲方式
[先练]——单句语法填空/完成句子
①Hopefully，my recommendations will soon be put into effect to settle these problems.
②(2022·全国乙卷)In fact，children consider this method effective (effect) when others use it.
③我深爱我的妈妈，她的言行对我有着积极的影响。(汲取榜样力量)
I feel much affection for my mum，whose words and actions have a positive effect on me．
④由于温室效应，大气中的气体使地球变暖。
Because of the greenhouse effect，the earth is warmed by gases trapped in the atmosphere.
⑤李白一生创作了大量优秀的诗歌，对中国文化产生了巨大的影响。(应用文之人物介绍)
During his lifetime，Li Bai wrote a great number of excellent poems，which have a great effect/influence/impact on/upon Chinese culture．
[后归纳]
(1)take effect　生效；见效
come into effect  生效
side effect  副作用
have an effect/influence/impact on/upon ...  对……产生影响
put ...into effect  实施；使……生效/起作用
(2)affect vt.  对……有影响
(3)effective adj.  有效的；有影响的
[先练]——单句语法填空/完成句子
①(2023·全国乙卷)You value progress and focus on the quality of work more than the quantity.
②With so many people focusing (focus)their eyes on him，he felt very nervous.
③Her attention is focused (focus) on listening to her teacher at the moment.
④众所周知，健康和环境问题已成为人们关注的焦点。(应用文之环境保护)
As is known to us，health and environmental problems have become the focus of attention．
⑤同学们的目光都集中在莎莉身上。他们在等她说话。(神情描写)
All the eyes of her classmates were focused on Sally.They were waiting for her to speak.
⑥深呼吸，放松自己，而不是专注于带给你压力的事情，你就会很快入睡。
Take a deep breath and relax yourself instead of focusing (your attention) on/upon what brings you stress，and you will fall asleep soon.
⑦(2021·浙江卷1月)头发打结，南瓜肉盖着鼻子，我成了在网上观看视频的那些人关注的焦点。
Hair in knots and nose covered by pumpkin pulp，I became the focus of attention of those who viewed the video posted online.
⑧那么多眼睛盯着我，我的脸涨得通红，开始结结巴巴地进行我的演讲。(读后续写之动作描写)
With so many eyes focused on/upon me，I blushed and began to stumble over my speech.
[后归纳]
(1)focus on/upon ... 关注；集中于……
focus one's attention/eyes/energy on ...　　　集中注意力/目光/精力于……
(2)the focus of attention/concern  注意力/关注的焦点
[名师点津]　表示“集中注意力于……”的常用短语：concentrate on；pay attention to；center on；focus on/upon；be absorbed in；put one's heart into；be buried in；apply oneself to等。
[先练]——单句语法填空/完成句子
①Ehlers eventually succeeded in coaxing(哄劝) the animal to him.Nervousness and fear were replaced with/by joy.It just started licking(舔) Ehlers' face.
②Nowadays，smartphones have become so powerful that they have taken the place of cameras，TVs，and even wallets.
③Mr.Anderson was ill，so his son delivered the goods in place of him.
④喜欢并向其他文化学习是件好事，但它们永远无法取代你自己的文化。
It's good to enjoy other cultures and learn from them，but they can never replace your own culture/take the place of your own culture．
⑤经过一番热烈的讨论后，我们决定制作一个视频来代替相册。(应用文之活动介绍)
After a heated discussion，we agreed on making a video in place of an album．
⑥幸运的是，一些路过的邻居停下来提供帮助。一种力量感立刻取代了简心中日益增长的恐惧和焦虑。(动作、心理描写)
Luckily，some neighbours passing by stopped and offered help. A sense of strength immediately replaced the mounting fear and anxiety in Jane's mind.
[后归纳]
(1)replace A with/by B　　用B替代A
replace sb.as ...  取代某人成为……
(2)take the place of＝take one's place  代替；替代
in place of  代替
[名师点津]　①in place of不可单独作谓语；　②replace，take one's place 和take the place of可单独作谓语。
[先练]——单句语法填空/完成句子
①I hugged him tightly，whispering，“You will be rewarded for your generosity in the future.”
②Her patience was rewarded (reward) when she received the Nobel Prize eventually.
③(2023·全国乙卷)Learning about the requirements of each plant can be very rewarding (reward)．
④我很乐意带你游玩北京，以报答你的慷慨帮助。(应用文写作之感谢信)
I'm more than willing to show you around Beijing in reward for/as a reward for/ to reward you for your generous help.
⑤这次活动不仅受到了极大的好评，也提高了我们的环保意识。这是多么有意义的一天啊！
Not only was the activity greatly praised but it also raised our environmental awareness. What a rewarding day!
⑥(2022·浙江卷6月，读后续写)通过这次有益的经历，除了服务时间，我得到了更有价值的回报：每一个微小的善举都会产生影响。
Through the rewarding experience，apart from the service hours，I was rewarded with something more valuable：Every small action of kindness makes an impact.
[后归纳]
reward vt.　　奖励；酬谢
　    n.  报酬；奖励
reward sb.for (doing) sth.  因(做)某事而奖赏/酬谢某人
reward sb.with sth.  用某物奖赏/回报某人
in reward for  为奖赏……；为报答……
as a reward for  作为对……的奖赏/回报
11．sensible adj.朴素实用的；明智的，合理的；意识到的　
[先练]——单句语法填空/补全句子/完成句子
①As far as I'm concerned，there is no sense in getting (get) upset about it now.
②This sentence just doesn't make sense (讲得通)，no matter how you read it.
③你决不应丧失信心；继续努力，你迟早会成功的。
In no sense should you lose heart；keep trying and you will make it sooner or later.
[后归纳]
sense n．　　感觉；见识；意义；理智
vt.  感觉到
make sense  有道理；合乎情理；表述清楚
make sense of  理解；明白
It makes (no) sense to do sth.
＝There is (no) sense in doing sth. 做某事(没)有道理/意义
in a sense  从某种意义上说
in no sense  决不(置于句首时，句子用部分倒装)
[名师点津]　“决不”置于句首引起部分倒装的短语还有：in no way；in no case；by no means；on no condition；at no time。
[先练]——单句语法填空/完成句子
①(2020·江苏卷)This actor often has the first two tricks (trick)planned before performing，and then goes for whatever.
②I won't have you playing tricks on the disabled.
③We were tricked into buying a poor car，which made me very upset.
④知道你喜欢吃水饺，我想与你分享包水饺的诀窍。
Knowing that you are fond of dumplings，I'm writing to share the trick of making dumplings with you．
⑤广告可能试图欺骗顾客购买产品或服务。
An advertisement might be trying to trick customers into buying a product or a service．
⑥你不仅纠正了我的错误，而且还教我学习英语的诀窍。
Not only did you correct my mistakes，but you also taught me tricks of studying English．
⑦没有人喜欢和他交朋友，因为他喜欢捉弄他人。(读后续写之人物描写)
No one likes to make friends with him，because he likes playing a trick/tricks on others．
[后归纳]
(1)play a trick on sb.(＝play tricks on sb.)　捉弄某人
the trick of doing sth.  做某事的窍门
(2)trick sb.out of sth.  骗取某人某物
trick sb.into doing sth.  欺骗某人做某事
[名师点津]　名词兼用作动词荟萃：①eye n．眼睛→v.注视，细看，审视　②nurse n．护士→ vt.护理，照顾　③head n．头→ vi.前往
[先练]——单句语法填空/完成句子
①(2023·新课标Ⅰ卷)You can view these practices as a toolbox meant to aid your efforts to build a minimalist lifestyle that works for your particular circumstances.
②As soon as I pressed the button，a beautiful virtual picture came into view.
③(2022·北京卷)站在泰山之巅，我们可以把整个城市的美景尽收眼底。
Standing on the top of Mount Tai，we are able to have a good view of the beautiful scenery of the whole city.
④尽管这个礼物不值钱，但我非常珍惜它。在我看来，真正重要的是其中所包含的爱。
Although this present isn't worth much，I value it very much. From my point of view/In my view，it's the love contained in it that really counts．(强调句型)
⑤鉴于一批英国学生即将访问我们学校，同学们对是否应该穿中国传统服装表示热烈欢迎持不同意见。(正反观点之开头)
In view of the coming visit of a group of Britain students to our school，students in our school hold different opinions on whether we should wear traditional Chinese costumes to extend a very warm welcome to visitors.
[后归纳]
(1)view ...as ...　　认为……是……
(2)in view of  鉴于；由于；考虑到
in one's view(＝from one's point of view)  在某人看来
come into view  进入视野；看得见
have a good view of  清楚地看到；饱览
(3)viewer n.  观看者；电视观众
[先练]——单句语法填空/完成句子
①The women stared at pictures varying from large ones to small ones.
②These books vary in the contents，so you can choose one according to your taste.
③However，a variety (vary) of types is represented here.These include comedy，satire，poignant drama，historical and regional drama.
④当我们讨论课堂活动时，意见往往因人而异。(观点介绍)
When we discuss something about class activities，opinions often vary from person to person．
⑤我们学校已经建了一个新的体育馆，有各种各样的完善的设备。
Our school has built a new stadium，which has various/varieties of/a variety of well-equipped facilities. (定语从句)
[后归纳]
(1)a variety of＝varieties of　　各种各样的
(2)vary vi.  (根据情况)变化；改变
vary from ...to ...  从……到……变化
vary in ...  在……(大小、形状等)方面不同
vary with/by ...  随……变化/改变
(3)various adj.  不同的；各种各样的；多姿多彩的

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B1U4 本单元核心素养自查
Ⅰ.单元词汇串记
请用本单元所学词汇的适当形式完成下列短文，然后核对答案并背诵该短文。
privacy，recommendation，confirm，powerful，convenience，in addition，addicted，concentrate
Nowadays，it is not unusual for a person to have such mobile devices as a smartphone or a tablet.Obviously，social apps on them enable you to do a variety of things.For example，you can buy superb goods，ask for 1.recommendations on hairstyles，subscribe to newspapers，and even download the latest learning materials.Some educational apps are becoming very 2.powerful，which makes a series of famous teachers' amazing lessons accessible to ordinary students.While these apps have indeed brought people so much 3.convenience and have had a positive effect，we have to admit they can harm us to an extent.Firstly，students are so 4.addicted to social media that neither can they 5.concentrate on study nor can they explore the real world.Secondly，some are only concerned with their shallow online popularity and don't maintain the rewarding friendships in reality，making them self-focused.6.In addition，people are likely to be tricked if they are too trusting(轻信的)．Evil people might create false identities and they often have several avatars of different types，such as sensible ones，good-looking ones and fancy ones.One cheat might be chatting with you under different identities.So do remember to protect your 7.privacy and don't tell your bank account to anyone unless his identity has been 8.confirmed.Lastly，the contents of some blogs are not healthy.In brief，nothing is 100 percent good.In my opinion，you must focus on your online safety when using these apps.
Ⅱ.一词多义无障碍
1．account
A. n．描述，叙述；报告　B. n．账目，账户　C. n．解释，说明；考虑　D. vi.解释，说明　E. vi.(数量上、比例上)占　F．vt.视为
(1)How do you account for losing five games in a row? D
(2)The witness gave the police a full account of the incident. A
(3)She sticks to paying the money into her saving account. B
(4)A person is accounted innocent until they are proved guilty. F
(5)In the school shop，students account for 50% of our customers. E
(6)The direction of the prevailing winds(盛行风) should be taken into account. C
2.trick
A．n.技巧   B．vt.欺骗　C．n.花招；把戏　D．adj.使人产生错觉的
(1)He tricked me into lending him 10，000 yuan. B
(2)I'm crazy to learn how to appreciate western paintings，and it can't be better if you can tell us some tricks about how to paint. A
(3)The children loved playing tricks on their teachers. C
(4)It's all done using trick photography. D
Ⅲ.熟词生义猜的快
1．(2022·全国乙卷 )Admission to lectures is free.B
A．许可
B．入场费；门票费
C．承认
2．(2022·全国乙卷)Since April drinks companies have been forced to pay between 18p and 24p for every litre of sugary drink they produce or import，depending on the sugar content. B
A．(容器等)容纳的东西
B．含量
C．内容
3．(2021·全国乙卷)Von Wong hopes that his work will also help pressure big companies to reduce their plastic footprint.A
A．对……施加压力，强迫
B．使(机舱等)增压
C．挤压
4．The opening ceremony will start at 9：00 am，and the schoolmaster will deliver a speech. A
A．发表　　        
B．递送　　　
C．接生
Ⅳ.核心词汇强化练
1．(2022·全国乙卷)It is believed that today's children and teenagers are consuming three times the recommended (recommend) level of sugar，putting them at a higher risk of the disease.
2．(2022·全国乙卷)The friend who is remaining needs to be sensitive to all the additional (addition) time demands placed on the friend who has moved.
3．(2021·新高考Ⅰ卷)The amazing (amaze) thing about the spring is that the colder the temperature gets，the hotter the spring!
4．(2021·新高考Ⅰ卷)The son of a grocer，he'd spent the summers of his childhood delivering (deliver) food in Bernardsville，New Jersey.
5．The players selected from the whole country are faced with great challenges，but they are training hard to be admitted (admit) as athletes in the Olympics.
6．Located (locate) where the Belt meets the Road，Jiangsu will contribute more to the Belt and Road construction.
7．In order to find more effective ways to protect the environment，we called on the government to put the law into effect．(effect)
8．The Chinese astronauts are conducting a series of experiments (experiment) to learn more about how the body adapts to weightlessness in space.
9．The power of the individual is limited，while the power of the masses is limitless．(limit)
10．Fallen rocks cut off the only access to the village，so it is not accessible to the outside now.(access)