Learning key words and expressions in
unit 3 词汇
impression n.----- vt. impress
make/leave a/an …impression on sb.
给某人留下···的印象
His speech left a deep impression on us.
翻译：他的演讲给我们留下了深刻的印象。
2.take up拿起；接受；开始；继续
When does the new manager take up his job?

Sorry , I have taken up you too much time.

He wants to take up art in college.

He decided to take up photography as his career.
Do you intend to take up his offer of a job?
开始某项工作
占用(时间或空间)
选修
从事
接受
take的短语还有
take off 起飞，脱掉
take over 接管，接收，承袭
take on 承担，接受，从事，呈现
take care 当心，注意
take care of 照顾…
take place 发生
take in 接受，理解，欺骗，收进，吸收take advantage of 利用
take away 拿走
take it easy 别着急，放轻松
take your time 从容做，不慌不忙
take part in 参加
take down 记下，写下，拿下, 拆掉，拆台
take for granted 想当然，认为理当如此
3. constant adj.
constantly adv. 不断地
Fashion is constantly changing.
时尚总是日新月异。
Heat the sauce, stirring constantly.
加热调味汁并不停地搅动。
4. previous adj. 在前的，早先的
previous to 在……之前
previously adv. 先前地，以前地
His previous attempt was successful.
他以前的尝试成功了。
Previous to the conference we had discussed the matter.
在会议召开之前,我们讨论了这个问题.
5. guide n. 指导;向导;导游;vt.指引；指导
guide sb.along/through/to 带领某人……
be guided by sb.由某人引导/指导
A local farmer guided us through the forest.
一个当地农民带我们穿过这片森林。
Guided by the guide, we had a tour to the small town.
在导游的指引下，我们观光了这个小镇。
6．tolerate vt.忍受；宽容
He won't tolerate anyone questioning his decisions.
他不能容忍别人对他的决定提出质疑。
tolerate sth.宽容/忍受某事
tolerate sb. doing sth.容忍、忍受某人做某事
7. lack vi. & vt. 缺乏；没有  n. 缺乏；短缺的东西
1. She lacks money to buy new clothes.
2. He is lacking in confidence.
3. She does not lack for friends.
4. Our tour is cancelled for lack of
money.
5. You are excellent, but we do have no
lack of teachers.
6. Too many teachers are treated with a
lack of respect.
8．press vt.按；压；逼迫n.按；压；印刷；新闻
She pressed her guests to stay a little longer.
她力劝客人们多呆一会儿。
To judge from the press, the concert was a great success.
据新闻报道来看，这次音乐会取得了巨大成功。
press sth. into...把某物塞进……
press sb. to do sth.力劝某人做某事
9. lose sight of 看不见,忽视,失去联系
1. Suddenly I lost sight of my father in the crowd. 看不见
2. We must not lose sight of the fact that learning English is very important.
忽视
【拓展】
catch sight of 望见，看到
in sight 在视线内
out of sight 看不见了
at (the) sight of 一看见······
at first sight 第一眼；初看起来
lose one's sight 失明
10.sweep up 打扫；横扫
Did you sweep up all the broken glass?
你把打碎的玻璃全扫起来了吗？
sweep up 意为“打扫；清扫”，经常引申为“横扫；掠过；拥向”。如:
The strong wind swept up the leaves off the street.
大风把街上的树叶一扫而光。
11. slide into 移动；溜进···
Exhausted, I slid into bed and fell asleep.
The man slid the money quickly into his pocket.
那人很快把钱塞进自己的口袋。
12.optimistic adj.乐观（主义）的
be optimistic about sth 对…乐观
optimist n. 乐观主义者
optimism n.乐观主义
He has no reason to be optimistic about the future, for he doesn’t study hard.
13. speed up 加速
slow down
You will never get there if you don’t speed up.
The girl’s heart often speed up while she is talking to a stranger.
at a speed of … 以······的速度
at high/ low/ full/ top speed
14. desert n. 沙漠；荒原 vt.抛弃，遗弃，离弃
The Sahara desert 撒哈拉沙漠
She was deserted by her husband.
她被丈夫遗弃了。
The villages had been deserted .
这些村庄已经荒无人烟了。
[提醒]　拼写相似的词:dessert(饭后的甜点心)
13．instant n．瞬间；片刻adj.立即的；立刻的
She paused for an instant and then stepped inside.
她停了片刻，然后走了进去。
She woke up instantly the phone rang.
电话一响她就醒了。
for an instant一会儿；片刻
in an instant一会儿之后
at that instant当时；那一刻
the instant一……就(用作连词，引导时间状语从句)
instantly adv.立即；马上
n. (pron.)
疑问词＋to do
doing sth.
wh-clause
1. consider
Language points
Let me consider. 让我仔细想想。
I am considering the purchase of car. 我在考虑买一辆车。
We must consider giving it a try. 我们应当考虑试一试。
We should consider what to do next.
我们应当考虑一下怎么办。
2. Inside, it is divided into zones with extraordinarily different atmospheres and gravities. 这里面被分为有着特别不同的大气和引力的区域。
▲ be divided into “被分为….”其主动语态为divide…into… “把…分为…”。
如: Let’s divide ourselves into two groups. 我们分成两个小组吧。
Divide the cake into quarters and share it equally. 把蛋糕分成4份, 大家平均享用。
辨析: divide与separate
divide往往指把某个整体划分为若干部分; separate指把原来连在一起或靠近的事物分隔开来。如:
He separated the big balls from the small ones. 他把大球和小球区分开来。
3. So you can imagine how exciting that is! 可以想像那是多么刺激！
[开放思维]
n./ pron
what-clause
that-clause
doing sth.
sb. doing sth.
imagine
I can imagine the scene quite clearly. 我想很清楚地想像出那一情景。
You can imagine how surprise I was. 你能想像出我当时是多么惊奇。
Try to imagine you’re alone on a desert island. 试想一下你孤身一人在一个荒岛上的情形。
Try to imagine staying alone on a desert island.
Try to image you staying alone on a desert island.
imagine后接的宾语是否定意思的从句时, 通常要发生否定转移。在imagine后可用代词so (not) 代替前面的名词, 动名词和从句, 而不用it.
注意
－Dose she know what kind of tables she has taken today?
她知道她今天取的是什么种类的桌子吗？
－I imagine so. 我想应该知道吧。
－Do you imagine they will help out?
你想他们会帮助我们吗？
－I imagine not. 我想不会。
4. They have assisted in the discovery of planets round the fourth star in the Pleiades system. 他们已发现了围绕昴宿系中的第四颗星旋转的行星。
assist v. to help or support
assist + n./ pron 帮助
assist sb. to do sth. 帮助某人干某事
assist in 在……上给予帮助
assist with 帮助(照料,做); 在……上给予帮助
I am willing to assist you whenever there is an opportunity. 有机会我愿随时帮你。
I’am afraid I can’t assist you, you have to go and see the manager. 我恐怕帮不上忙, 你得去找经理。
A team of nurses assisted (the doctor) in
performing the operation.
She employed a woman to assist her with
the housework.
Good glasses will assist you to read.
She assisted the hostess at the party. 她在舞会中帮助女主人。
They will help you (to) attain the goal. 他们有助于你完成目标。
He is always aiding the students with money. 他总是出钱帮助那些学生。
assistance UN. 帮助，援助
give assistance to sb 给予帮助
come to sb’s asssstance 帮助某人

assistant CN. 助手，助理
5. They require the same atmosphere as humans and great engineers. 他们需要的空气跟人类的空气一样, 他们都是超乎寻常的工程技术人员。
辨析: assist, help与aid
assist与help同义,但着重指“协助”,受协助的人自己做一部分工作; help可指具体或抽象意义上的“帮助”; aid一般指缓助一群人, 尤指用金钱, 接受帮助的人较广泛。如：
require
(1) vt. to need or make necessary 需要
[开放思维]
require
n./ pron
doing sth.
that-clause
to do sth.
This suggestion will require careful thought. 这建议需要仔细考虑。
To carry out this plan would require increasing our staff by 50％。 执行这一计划需要增加50%的人员。
(1) require, need, want用法一致,当物作主语时,其后可接动名词或不定式的被动语态。
(2) require接 that从句时,谓语动词用虚拟语气, 即 (should) + v.
The flowers require/need/want watering /to be watered. 花需要浇水了。
Attention
辨析: require to do与require doing 都表示“需要做某事”, 接动词不定式时,句子的主语是动词不定式的逻辑主语,接动名词时,句子的主语则是动名词的逻辑宾语。如:
He requires to see my passport. 他要看我的护照。
The house requires painting. 这房子需要油漆。
6. Suppose that……假设
1) conj. used when imagining what the result would be if something happened. It’s not worth the risk, suppose your mother found out? 不值得冒这个险, 万一你妈妈发现了怎么办?
Suppose/supposing he is absent, what shall we do? 假如他不在,我们怎么办?
2) conj. to suggest something; supposing 让…… (用于提出建议)
Suppose we go for a walk.
3) be supposed to do/be sth. 应当, 应该
Customers are not supposed to smoke here. 顾客不可以在这里抽烟.
He is supposed to be a good writer. 他被认为是个好作家。
7. Is it likely /unlikely that……?
……事可能/不可能吗?
likely
adj. something that is likely/will probably happen or is probably true 可能的,可能会发生的,可能是真的
如: Snow showers are likely in the next 24 hours. 未来的24小时内可能有阵雨。
The likely cost of the operation. 手术可能的费用。
2) adv. probably 很可能 如:
I’d very likely have done the same thing in your situation. 在你那种情况下, 我很可能做出同样的事。
辨析: likely, possible 与probable
likely 与probable的可能性接近“很有可能” 。
句型为: sb. is likely to do 或It is likely that
probable:句型为It’s probable that
possible:句型为It’s possible (for sb.) to do
sth. 或It is possible that 意为有某种可能,实际上也许不能实现,其副词常与could not连用, 表示不大可能。
Good bye!
Thank you for your attention !