人教版高中英语必修四Unit3 Life in the future课文全解(常考单词、高频短语和写作句式)

人教版高中英语必修四Unit3 Life in the future
课文全解
（常考单词、高频短语和写作句式）
Ⅰ. 常考单词必背
1．aspect n．方面；层面
I shall limit myself to three aspects of the subject.
我将从三个方面来讨论这个问题。

2．impression n．[C]印象；感觉
I am going to do all I can to remove the unpleasant impression you have of me.
我打算尽最大努力去掉你对我不好的印象。

[快速闪记]
(1)have/leave/make a(n)．..impression on sb 给某人留下……印象
(2)impress vt.①印；压印②留下极深的印象
impress sth on/upon sb/one's memory使某人铭记某事
impress sb with sth (某事)给某人留下印象
be impressed with/at/by...对……有深刻印象
(3)impressive adj.给人深刻印象的；感人的；激动人心的
3．constant adj.时常发生的；连续不断的
constantly adv.不断地
Teachers have to constantly update their knowledge in order to maintain their professional competence.
教师为了保持职业能力，必须不断更新知识。

4．previous adj.在前的；早先的
He recalled exactly what Bob had told him the previous night.他清楚记得前一天晚上鲍勃告诉他的话。

[快速闪记]
in the previous chapter在上一章中
previous to在……之前
You must collect enough materials previous to your writing.你在写作之前必须收集好足够的材料。

5．guide n．& vt. n．[C]向导；导游；指南；手册vt.为……领路；带领；引导
A young lady guided us on a tour of the museum as our guide.一位年轻小姐作为导游带领我们参观了博物馆。

6．lack n．[U]缺乏；没有vt.& vi.缺乏；短少；没有
Lack of time prevented me from writing to you.
由于没有时间，我没能给你写信。

[快速闪记]
a lack of缺少
lack for (多用于否定句)缺
for/through lack of因为缺乏
be lacking in缺乏，不足
7．adjustment n．[C] & [U]调整；调节
These animals made an adjustment to the new environment in a short time.
这些动物短时间内就适应了新环境。

[快速闪记]
adjust vt.①(使)适应；(使)校准；(使)调整②整理；使有条理
adjust(oneself) to (doing) sth (使某人)适应(做)某事
make an adjustment/adjustments to调整……(以适应……)
adjustable adj.可调节的；可调整的
8．switch n．[C] ①开关；电闸②转换；改变；变化vt.①转变；交换②开关(电器等设备) She switched the conversation from one subject to another.她转变了话题。

[快速闪记]
switch off关上(电灯、电视等)
switch on打开(电灯、电视等)
switch to转换到switch over转换频道；转变
make a switch进行改变
9．optimistic adj.乐观的pessimistic adj. 悲观的
10．instant n．& adj.瞬间；片刻；立即的；立刻的
Please go away in an instant.请立刻走开。

[快速闪记]
in an instant立即；马上
for an instant片刻，瞬间
the instant 一……就
instantly adv.即可，马上
Ⅱ. 高频短语必会
1．take up 拿起；开始；继续
2．be back on one's feet (困境后)恢复；完全复原
3．lose sight of看不见……
4．sweep up打扫；横扫
5．slide into(快捷而悄声地)移动；溜进
6．speed up加速
Ⅲ. 写作句式必学
1．Hit by a lack of fresh air，my head ached.
由于缺乏新鲜空气，我感动头疼。

2．Having said this，he spread some food on the table，and produced a bed from the floor.
说完这个，他把一些食物摆在桌子上，而且还从地板上弄出一张床来。

3．It'll make you feel much better.
它会让你感觉好许多。

4．At first my new surroundings were difficult to tolerate.
开始的时候，新的环境让我难以忍受。

Ⅳ. 核心单词集中串记
短文语法填空，然后背诵短文，熟记本单元的重点词汇。

An Air Crash
I was a previous typist in a post office.Because I couldn't tolerate typing any morepostage bills or postcodes on__1__ typewriter every day，I resigned.With a __2__(greed) motivation of making big money，I took up working as a businessrepresentative for the G．E Ecology Company，which produced goods by __3__(recycle) useful materials from our dustbins.My new job left me good __4__(impress) in many aspects except that the working timetable was full of traveling by jets. Once，when__5__ (speed) up，our jet was swallowed by a thunderstorm，which destroyed our GPS receiver and made us lose sight of the directions.Aconstantly flashing light showed that our jet was in danger.A steward __6__(instant) asked us to put on masks and fasten the safety belts，and then pressed a button toswitch on the escaping capsule.It slid sideways __7__ of the opening at once and landed in a desert area cking food and tablets，we were nervous
anduncertain at first.But we all kept optimistic and made good __8__(adjust) to the situation.We swept up the surrounding mud to make our settlement and were back on our __9__ (foot) soon.Finally，__10__(guide) by the smoke of our crashing jet，some local citizens came by carriages and saved us.
【参考答案】
1.a
2.greedy
3.recycling
4.impressions
5．speeding 6.instantly7.out8.adjustments
9．feet10.guided。