高中英语Unit4Breakingboundaries单元知识点整合课件外研版选择性必修第二册
新外研英语选择性必修二Unit 4 单元 四步复习法 讲义
1 / 4 Unit 4 Breaking boundaries—2022-2023学年高二英语外研版（2019）选择性必修第二册大单元“四步复习法”
第一步：单元学习目标整合
1.学生掌握本节课的重点单词和词组，理清文章架构，掌握有关无国界医生的相关知识
2.学生掌握it作形式主语的用法和语法意义
3.了解美国记者埃德加·斯诺的事迹，并用所学内容写一篇演讲稿，介绍一位为促进两国交流做出重大贡献的人物
第二步：单元思维导图回顾知识
第三步：单元重难知识易混易错
it作形式主语
一、用法
由于主语从句过长，为了避免头重脚轻，常常用it做形式主语，而把主语从句放在句末，常用的主要有以下五种句型：
1.It+be+形容词(clear/obvious/true/nature/surprising/good/wonderful/funny/possible
/likely/probable/certain/fortunate)+that的主语从句……，意为“做……是……的。”
It was surprising that she passed the difficult exam.
真让人惊讶，她居然通过了这次有难度的考试。
It is clear that he told a lie.
很明显，他撒谎了。
2.It+be+过去分词(said/reported/believed/thought/expected/announced/confirmed) + that从句……， 2 / 4 意为“据……。”
It's said that they are opposite-sex twins.
听说他们是龙凤胎。
3. It + be + 名词 (a pity/no wonder/an honor/a good idea/a fact/good news) + that从句……，意为“做……是……的。”
外研版高中英语选择性必修第二册Unit 4 语法知识点总结汇编
第 1 页 共 7 页 外研版高中英语选择性必修第二册Unit 4 语法知识点总结汇编
Unit 4 Breaking boundaries
一、重点短语
ck n.& vt.缺乏
(a) lack of...缺乏……
for/through lack of...因缺乏……
lack for...(对……)不充足,缺乏……(常用于否定句)
have no lack of...不缺乏……
lacking adj.缺乏的 be lacking in缺乏
lack虽可用作及物动词,但不用于被动语态;lack用作不及物动词时,常与介词for或in连用;lack用作名词时,常与介词of连用
2. assist vt.协助;帮助
assist sb.with sth.在某方面给某人帮助
assist sb.in(doing) sth.帮助某人做某事
assist sb.to do sth.帮助某人做某事
assistance n.[U]帮助,协助,援助
第 2 页 共 7 页 with the assistance of在……的帮助下
come to sb.’s assistance帮助某人
assistant n.助手;助理;售货员
lack虽可用作及物动词,但不用于被动语态;lack用作不及物动词时,常与介词for或in连用;lack用作名词时,常与介词of连用
3.base vt.以……为根据;把……设在 n.基部;基地;基础;根基;底部
base...on/upon把……建立在……上
be based on/upon以……为根据 basis n.基础;基本原则
on the basis of根据;在……的基础上
basic adj. 基础的;基本的;根本的
basically adv.基本上;基本地;主要地
Basing an important decision more on emotion than on reason,you will
Unit 4 单词表词汇拓展讲义 高中英语外研版(2019)选择性必修第二册
Unit 4 Breaking boundaries
1. assist v 协助，帮助
拓展： assist sb. with sth 帮助某人某事
assist sb. to do sth. 帮助某人做某事
assist sb. in doing sth. 帮助某人做某事
assistance n帮助，援助
assistant n 助手，助理
2. tackle v 处理，对付难题，与…交谈，与…交涉
拓展： tackle sb. about sth. 与某人商谈某事
deal with 处理，应对= do with = cope with
3. vital adj 极其重要的
拓展： be vital to / for 对…很重要
of vital importance 至关重要
It is vital to do sth. …..是极其重要的
It is / was vital that + 句子 （句子中谓语动词用 should+动词原形，should可以省略）…..是极其重要的
4. infectious adj 传染性的，有感染力的
拓展：infect v 传染 infection n 传染，感染
5. disinfect v 为…消毒，给…杀菌
拓展： disinfectant n 消毒剂
否定前缀 dis- :
agree 同意 —— disagree 不同意
appear 出现 —— disappear 消失
honesty 诚实 —— dishonesty 不诚实
connect 连接 —— disconnect 切断
6. devotion n 奉献，深爱，挚爱
拓展： devote v 致力，献身
devoted adj 献身的，专心的
7. realistic adj (目标、 希望) 能够实现的，现实的，实际的
2021高中英语Unit4Breakingboundaries教学知识细解码选择性第二册
2020_2021学年高中英语Unit4Breakingboundaries教学知识细解码教师用书外研版选择性必修第二册 Unit 4 Breaking boundaries
1．assist v．帮助,协助→assistance
n．帮助;协助→assistant
n．助手；助理
2．special adj。特殊的;特别的→specialist n．专家
3．infect v．感染→infection n．感染，传染→infectious adj。传染性的→disinfect vt。给……杀菌；为……消毒
4．devote vt.献身于→devotion n．奉献→devoted adj。献身的；热爱的
5．twin adj.双胞胎的→twins n．双胞胎
devotion n．挚爱；关爱；关照；奉献；忠诚；专心；热心
①His devotion to his wife and family is touching。 挚爱，关爱
②Her devotion to the job left her with very little free time.
忠诚;专心
③As a soldier，he showed selfless devotion to duty. 奉献
Words and Phrases
错误! assist vt.& vi.帮助，协助
（教材P38) It assists people based on need， regardless of 2020_2021学年高中英语Unit4Breakingboundaries教学知识细解码教师用书外研版选择性必修第二册
which country they are from.
它根据需要帮助人们，不管他们来自哪个国家。
[例1］ We'll do all we can to assist you。
我们要尽量帮助你。
[例2] Anyone willing to assist can contact this number。
外研版()选择性必修第二册Unit 4Breaking boundaries(解析版)
选择性必修第二册 Unit 4 Breaking
boundaries
佳作抢鲜背 学写作思路，背精彩范文(告知信——学唐诗)
(全国Ⅰ卷)假定你是李华，正在教你的英国朋友Leslie学习汉语。请你写封邮件告知下次上课的计划。内容包括：1.时间和地点；2.内容：学习唐诗；3.课前准备：简要了解唐朝的历史。
精彩范文
Dear Leslie，
How are you going these days? I’m happy that you have made rapid progress
in Chinese.Now I’m writing to tell you the teaching plan for the next time.
To begin with，we’ll have our class in my home next Sunday if it is convenient
to you.Secondly，I’ll teach you poems of Tang，which are famous not only in
China but also throughout the world.Thirdly, they may be a bit difficult for you，so you’d better make some preparations in advance.Most
importantly，you
should learn about the general history of Tang Dynasty，which will be surely
of great help to you.
I’m looking forward to meeting you next Sunday.
Yours，
Li Hua
迁移运用
每日句型练透：be of＋n.＝be＋adj.
高中英语外研版(2019)选择性必修第二册Unit 4 Breaking boundaries Us
Unit 4 Breaking boundaries——Using language
一、短语填空
no longer; all over the world; as well as; no wonder; as if;
in particular; merge into
1.He is a famous scientist a well-known
writer.
2.He talked of other cultures they were more
familiar to him than his own.
3.One road ,which goes north from La Paz,is
considered the most dangerous road in the world.
4.We were forced to sign the agreement,which meant we could
enjoy individual freedom.
5.They are good friends,so it is
that they know
each other very well.
6.A large number of buses and cars the traffic
in rush hours on workdays.
7.Whitney Houston was one of the most famous
artists
.Brandy was attracted by her
beautiful singing.
二、完形填空
My history with music was not good.I still remembered when I took my shortlived piano lessons, my grandfather said 1
2019外研版高中英语选择性必修二Unit5 单元知识梳理
1 / 8
Unit5 单元知识梳理
一、重点单词
1.appetite n.胃口，食欲；欲望，爱好（for）→ appetizing adj.________
①________________对………胃口大开
②________________胃口好
③________________胃口不好
④________________增进食欲
⑤________________破坏某人的食欲
⑥________________对……的爱好/强烈欲望
⑦________________对……产生食欲
⑧To start with，you must ________________knowledge.
首先，你要有强烈的求知欲。
答案：1.开胃的；引起食欲的；使渴的
① have an appetite for
② have a good/healthy appetite
③ have a poor appetite
④promote appetite
⑤spoil/ruin one's appetite
⑥an appetite for
⑦develop an appetite for
⑧have an appetite for
2.explode ν.突然增加；爆炸；突然爆发（感情）→________________n.激增；爆炸；爆炸声；（愤怒等感情的）爆发
①________________勃然大怒
②________________突然大笑
③They help you cool down when you feel like your anger might______________.
当你感觉自己的怒火要爆发的时候，它们会帮助你冷静下来。
答案：explosion
①explode with anger 2 / 8
②explode into/with laughter
2019外研版高中英语选择性必修二Unit4 单元知识梳理
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【名师原创】：Unit4 易混易错点辨析
●supply; provide; offer
【教材原句】
It is an independent, non-profit organization whose mission is to provide medical care
to those affected by conflict, epidemics, disasters or a lack of access to health care.
(教材P38)
When I saw the tragic scenes on the news, I felt it was my duty as a doctor to go there
and offer my help. (教材P38)
【辨析】
三者都可表示 “供给、提供”，但用法表达有一定区别。
supply表示“供应；补充；弥补”，一般强调替换或补足所需之物以及弥补缺陷，满足要求，常用于supply sb. with sth.= supply sth. to sb.结构。还可作名词，意为“供给（量）；物资；存货”，常用复数形式。
provide表示“供给，提供，装备；准备”，常强调有预见，通过储存等方式为应对意外、紧急情况等做准备，以便需要时提供所需物品。常用于provide sb. with
sth. = provide sth. for/to sb.结构。有时supply 和 provide 可以互换。
offer 表示“提出，提供；呈现”，着重强调主动向别人提供物品、帮助和服务等。常用于offer to do sth..；offer sb. sth.= offer sth. to/for sb./sth. 句型。
【例句呈现】
Supplies of food are almost exhausted.
贮存的食物快吃完了。
外研版()选择性必修第二册Unit 2Improving yourself(解析版)
选择性必修第二册 Unit 2 Improving
yourself
佳作抢鲜背 学写作思路，背精彩范文(人与自然——历险脱困)
简因与丈夫吵架后负气出走，在林中迷路，通过几次努力也没能找到回营地的路线。太疲惫了，她不知不觉地睡着了……
精彩范文
It was daybreak when Jane woke up. Weak as she was，she struggled to her feet，continuing searching for assistance. To her great joy，a helicopter was flying
overhead again and again.Eager and excited，she flagged her yellow blouse
and spared no effort to yell so as to attract others’ attention.Fortunately, she
was eventually noticed and brought into the helicopter.There，she saw her
husband，a man staring at her ，wearing an expression of relief.As tightly as
possible，she hugged him and was too thrilled to say anything.Besides，they
agreed never to quarrel again，determining to live the life to the fullest.
学习借鉴
1.富有感染力的形容词/副词/词组
fortunately，eventually，as tightly as possible，was too thrilled to，to the fullest
外研版(2023)选择性必修 第二册Unit 5 A delicate world Using la
第 1 页 共 11 页 外研版（2023）选择性必修 第二册Unit 5 A
delicate world Using language课时分层练（含答案）
Unit 5 A delicate world Using language—2023-2024学年高二英语外研版（2023）选择性必修第二册课时分层练
【夯实基础】
知识点1固定搭配
1. Parents often find it difficult _______(win) their children's trust and
they always forget how they themselves felt when young.
2. This time the island has been transformed _____ a Disney-like theme
park where dinosaurs are the biggest attraction.
知识点2过去分词
3. If no drainage system exists, the water table rises, bringing
_____(dissolve) salts to the surface.
知识点3连接代词
4. Susan made it clear to me ________ she wished to make a new life for
herself.
知识点4非人称代词
5. New technologies have made _______ possible to turn out new
products faster and at a lower cost. 第 2 页 共 11 页 【提升能力】
6. I suppose there is no need to talk about this problem with them at