Unit 1 Science and Scientists Words and Expressions课件(共26张PPT)-2025-2026学年人教版(2019)选择性必修第二册

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Unit 1 Science and Scientists Words and Expressions课件(共26张PPT)-2025-2026学年人教版(2019)选择性必修第二册

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(共26张PPT)
XB2U1 Science and Scientists
—Words and Expressions
词汇精讲
1. severe adj.极为恶劣的; 十分严重的; 严厉的
常考短语
face severe challenges 面临严峻挑战
be severe on/with 对…严厉
=be hard on = be strict with
severely
adv.严重地;严格地,严厉地
n.严重,猛烈
severity
词汇精讲
2. 对/因……灰心丧气 be/feel frustrated at/with
3. 某人感染/传染上 be infected with virus
4. 与……矛盾/对立 be contradictory to
5. subscribe v.认购(股份);定期订购,定期交纳(会费)
1. I subscribed to several magazines.
我订了几份杂志。
2. We subscribe to several sports channels on TV.
我们付费收看好几个体育频道。
3. We prefer to subscribe to an alternative explanation.
我们更赞同另一种解释。
4. we subscribe to an animal protection society.
我们定期捐款给一个动物保护协会。
subscription n.捐助;订阅 an annual subscription一年期订阅
subscriber n.订阅人;定期捐款者
词汇精讲
6. multiple injuries 多处受伤
multiform
multicultural
multimedia
adj. 多样的;多种形式的
adj. 多元文化的
adj. 多媒体的 n. 多媒体技术
7. suspect v.怀疑;疑有;不信任 
n. 犯罪嫌疑人;可疑对象
常考短语
suspect that... 怀疑/认为……
suspect sb. to be... 怀疑某人是……
suspect sb. of (doing) sth. 怀疑某人(做过)某事
a murder suspect 杀人嫌疑犯
【即学即练】单句语法填空。
1. Judging from his abnormal behaviour, I suspected him (be) a thief.
2. The police carrying drugs so they went through his bag, but found nothing.
to be
suspected him of
8. blame v.把……归咎于;责怪;指责 
n.责备;指责
常考短语
be to blame (for sth.) 该(为……)受责备;应该(为……)负责
blame sth. on sb. 把某事归咎于某人
blame sb. for (doing) sth. 因(做)某事责备某人
lay/put the blame on 把责任归咎于……
【即学即练】单句语法填空。
1.Mary, rather than you, is (blame) for not finishing the work on time.
2.She blamed her husband the failure of their marriage.
3. (blame) by the teacher, Mary was pulling a long face.
to blame
for
Blamed
9. handle v.处理
n.把手;柄
常考短语
the handle of a knife 刀柄
handle a problem 处理问题
拓展:解决?
tackle solve settle address deal with approach
intervene personally 亲自介入
government intervention 政府介入
10. intervention n.介入
intervene
v. 介入
核心用法
单词变形
词汇精讲
11. 将A和B联系/连接起来 link A to/with B
与……有联系/有关 be linked to/with
12. 重大进展 substantial progress
13. decrease v.(使大小,数量等)减少;减小;降低
n.减少;降低;减少量 
常考短语
decrease to... 减少到…
decrease by...减少了…
on the decrease 正在减少
a decrease in 在某方面减少
【即学即练】单句语法填空。
The traffic accidents in the city decreased ______ 40% last year.
Because of human activities, the number of some rare animals is ____________.
词汇精讲
14. thanks to 幸亏;由于
拓展:由于
on account of
owing to
due to
because of
as a result of
词汇精讲
15. statistic n.统计数字
statistical adj.统计的,统计学的
statistically adv.统计地;统计学上
16. transform v. 改变;转变;使改观 transformation n.
常考短语
transform A into B 把A变成B
【即学即练】单句语法填空。
In the past 20 years the country _____________________ (transform) into an advanced industrial power.
has been transformed
17. initial adj.最初的;开始的;第一的 n.(姓名的)首字母
initially adv.开始,最初
initiative n.倡议;新方案
常考短语
the initial stage 最初阶段
18. cast (cast-cast-cast) v.投射;向……投以(视线,笑容)
常考短语
cast an eye/one’s eyes over sth.用眼光瞥;匆匆查看
cast/throw light on sth.使...较容易理解
be cast down (by sth.) (因某事)沮丧
cast a shadow 投影
in the shadows 在阴暗处
【即学即练】单句语法填空。
Anyone would be cast by such news .
The moon (cast) bright light over the garden when I saw through the window.
Recent research has thrown new light on the causes of the climate change.
down
cast
cast [kɑ st] v.投掷;投射(光/影子);向……投以(视线/笑容)
写出下列句子中画线部分的汉语释义。
1. Again she cast a look toward the window. ______
2. The play is being cast in both the US and Britain. ________
3. The site where Zhang Xianzhong cast lumps(块)of pure silver is being dug. ________
4. To qualify, candidates must get at least 10% of the votes cast.
________
投射(视线)
挑选演员

投票
19. pour v.倒出; 倾泻; 斟(饮料)
常考短语
pour down 流下;(雨)倾盆而下
pour into/in 涌进
【即学即练】单句语法填空。
他是那样沮丧,泪水顺着他的面颊簌簌地落下。
He was so frustrated that tears poured down his cheeks.
词汇精讲
20. break out 战争、打斗等不愉快的事情)突然开始;爆发
break down 出故障;失败;垮掉;分解
break in 破门而入;打断(谈话等)
break into 强行闯入
break away from 脱离;挣脱
break through 突破
21. defend v.保护;保卫;辩护
defence n.防御;保卫
defensive adj. 防御的;保护的;保卫的
常考短语
defend…from/against 保护……免受;防御
in defence of 为了保卫;为……辩护
1. Some people think that students should be trained to defend themselves __ some attacks.
2. When the dog attacked the boy, he defended (he) with a stick.
3. He has employed one of the UK's top lawyers ___________ (defend) him.
4. All the people, men and women, young and old, were fighting against the flood in (defend) of their own homes.
5. The dam was built to ______________________________ away by the sea.
against/from
himself
to defend
defence
defend the road from being washed
词汇精讲
22. sb. be in charge of 主管;掌管(表主动)
sth. be in the charge of 受……的管理;由……负责
take charge of 掌管;负责
free of charge 免费
charge v. 收费;要价;控告;充电
charge sb. for sth. 为某物向某人收取费用
charge sb. with (doing) sth. 控告某人(做)某事
23. gifted adj.有天赋的;天资聪慧的
gift n.天赋
常考短语
be gifted in (doing) sth. = be talented in 在……方面有天赋
have a gift/talent for 有……天赋
词汇精讲
24. 挑剔,挑……的毛病 find fault with
25. vivid adj.生动的,鲜明的,丰富的
常考短语
vivid memories 清晰的记忆
a vivid imagination 活跃的想象力
give a vivid account of… 生动描述
【即学即练】单句语法填空。
他生动描述了作为飞行员的生活。
He gave a vivid account of his life as a pilot.

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