外研版（2019）必修第三册Unit 3 The world of science Words and expressions第三部分课件(共24张PPT)

(共24张PPT)
Unit 3 Words and expressions第三部分
Learning objectives:
After the class, you will be able to
1. learn to guess the meanings according to the context.
2. master the key words and expressions and learn to use them for writing.
1. draft n./v.草稿；起草
draft a speech 起草演讲稿
write a draft 写出草稿
1) The chemist is busy _____________________(起草演讲稿) on science theory.
2) The next technique is __________________(写出草稿) rapidly without worrying about being perfect.
drafting a speech
to write a draft
2. declaration n. 声明，宣告，宣言
declare v.
make a declaration 作出声明
declare that 宣布
It is declared that 据宣布
declare for/against 声明赞成/反对
declare war on 对······宣战
1) She read the _______________(declare) aloud for everyone to hear it clearly.
2) ____________________(据宣布) there will be no class this afternoon.
3) The students ________________(声明反对) cheating in the examination.
declaration
It is declared that
declared against
3. experiment n./v.实验，试验
experimental adj.
carry out/perform/conduct an experiment 做试验
1) To test the effect of social influence on eating habits, the researchers ___________________________(做了两个试验).
conducted two experiments
4. attach v.
Guess the meanings.
1) While sleeping, astronauts must attach themselves to something so as to prevent floating around.
2) Nowadays, more and more people attach importance to education.
3) He attached himself to me at the party and I couldn’t get rid of him.
绑
重视
和······在一起
attached adj.
attachment n.
attach ...to... 把······固定在······上
attach importance to 重视
attach oneself to 和某人在一起，缠着某人
be attached to ①喜欢②附属于
1) She attached a check ________ the order form.
2) Emma had never taken herself as a crane and become
deeply _____________(attach) to humans.
3) The institute _____________________(附属于) Peking University.
4) More and more people are beginning to
________________________(非常重视) living a low carbon life.
to
attached
is attached to
attach great importance to
5) 健康是我们应该重视的问题。
__________________________________________________
Health is a problem that we should attach great importance to.
5. flash
Guess the meanings.
1) Lightning flashed in the distance.
2) The countryside flashed past the train windows.
3) A terrible thought flashed through my mind.
4) His eyes flashed with anger.
闪光
快速移动
突然想到
突然显露
6. conduct v. conductor n.
Guess the meanings.
1) Copper conducts electricity well.
2) The concert conducted by Andrew turned out to be very successful.
3) Child as he is, he really conducts himself well before guests.
传导
指挥
表现
4) On the second day of this journey, the guide conducted us around the West Lake.
5) The question came up at the meeting whether we had enough money to conduct the research.
带领
实施
1) A fire drill will ______________(conduct) in your residence hall every semester.
2) To return to the problem of water pollution, I’d like you to look at a study _______________(conduct) in Australia in 2012.
be conducted
conducted
7. scientific adj.科学的
science n.
scientist n.
1) People can be easily influenced by advertisements that lack ______________(science) support.
2) _________________(science) say they’ve already collected more data than had been expected.
scientific
Scientists
8. entirely adv.完全地，彻底地
entire adj.
1) However, we did not mark the route so we ended up almost missing the sunset ______________(entire).
entirely
9. account
Guess the meanings.
1) Some banks make it difficult to open an account.
2) She gave the police a full account of the incident.
3) The bad weather may account for the small crowd.
4) It is said that body language accounts for 55 percent of a first impression.
账户
叙述
是······的原因
占
on account of 由于
on no account 决不
take sth into account 考虑
=take account of sth
account for ①是······的原因②解释③占
1) ____________________(决不) should you jump into a conclusion when you feel uncertain.
2) Those who choose to read English books and visit English learning websites only _________________(占) 18% and 12% respectively.
3) 如果你能考虑我的建议， 我将不胜感激。
__________________________________________________
On no account
account for
I would appreciate it if you could take my advice into account.
Practice
用词汇的适当形式填空。
1. The ________________(宣言) was drafted by a committee led by Robert.
2. The proof you provided is _______________(完全地) false.
3. She gave an accurate _______________(叙述) of the procedure.
declaration
entirely
account
4. A flash of lightning hit the kite, and electricity was ______________(传导) through the string to the key.
5. The results of the _______________(实验) confirmed the biologists’ predictions.
6. Benjamin Franklin helped _________________(起草) the Declaration of Independence.
7. The research institution ________________(附上) much significance to scientific experiments.
conducted
experiment
draft
attaches