2019-2020年高中英语人教版必修三Unit4单词导学案(无答案)

2019-2020学年高中英语人教版必修三

Unit 4 Astronomy：the science of the stars

Words

【学习目标】

1、课前预习、记忆单词，能够会读、会写。

2、通过查字典、小组合作探究，掌握单词、词组的用法。

【重点难点】

1、重点单词: system, theory, violent, unlike, fundamental, harmful, multiply, exist, puzzle, crash,

pull, float

2、重点短语：in time, lay eggs, give birth to, in one’s turn, prevent…from, block out, cheer up, now

that, watch out for ,break out

【自主学习】The classification of parts of speech

v. multiply , exist, puzzle ,crash, pull , float

n. astronomy , system , religion , theory , atom , billion , globe , carbon , dioxide , atmosphere , acid,chain, oxygen, puzzle, biology, gravity, satellite, physicist, climate, spaceship,

adj. violent, fundamental , harmful , gentle,unlike

prep. unlike

【合作探究】

1. astronomy n. 天文学astronomer天文学家

2. system n.[c] 系统；体系；制度；方法

systematic adj. 有系统的; 有条理的

1) The solar system (太阳系)includes the sun and its eight planets.

太阳系包括太阳和它的八颗行星。

2) The education system（教育系统）operates very differently in the US and China.

3) He introduced us a well-designed railway system (铁路系统).

3. religion n. 宗教，宗教信仰religious adj.

believe in religion 信教

1) You shouldn’t talk about politics or religion. 你不应该谈论政治和宗教。

4. theory n.学说，理论

in theory 在理论上

in practice 在实践上

put theory into practice 把理论付诸实践

Darwin’s theory of evolution 达尔文的进化论

theory of relativity 相对论

combine theory with practice 把理论与实践相结合

1) In theory, I agree with you, but I feel that your ideas would not work in practice.

理论上，我同意你的意见，但实际上恐怕行不通。

5. globe n.球，球状物，地球仪global adj.

the globe 地球，世界

1) If you look at this globe, you will see where equator is.如果看一下地球仪，你就会看到赤道在哪儿。

6. atmosphere n. c.n. &u.c. 大气层，气氛，氛围

1) The waste goes into the atmosphere. 废气进入大气层。

2) The top leaders of the two countries are holding talks in a friendly atmosphere.

两国领导人在友好的气氛中进行谈判。

7. violent adj. 猛烈的，激烈的，强暴的violence n.

answer violence with violence 以暴制暴

violent behavior 暴力行为

violent winds 猛烈的大风

1) The students are involved in violent dashes.学生们被卷入了暴力冲突。

8. in time 及时；迟早，终有一天

1）You’ll succeed in time because you are always working hard．

2）I hope you can arrive here in time to see Mr. Green before he leaves this afternoon.

3) He was in time to catch the bus. = He was in time for the bus.

用法总结：in time to do=in time for sth. 及时做…

9. unlike adj.& prep. 不同；不像→反义词: like像；

like vt. 喜欢→反义词dislike 不喜欢

1) They are so unlike that nobody would believe they were sisters.

2) Unlike me, my sister likes to stay up late.

3) It’s unlike Tom to be late. 迟到不像他做的事。

4) Unlike John, Tom dislikes playing football，doesn’t he? 不像约翰，汤姆不喜欢踢足球。

5) The twins are unlike in character. 性格不同。

用法总结：It’s unlike sb. to do sth. 做某事不像某人那样

10.fundamental adj. 基本的，基础的

1) Ben made a fundamental mistake. 本犯了一个根本性的错误。

2) Fresh air is fundamental to good health.

3) Diligence is fundamental to success.

用法总结：be fundamental to sth 对…必须的/关键的

11. harmful adj.有害的；伤害的

harm n. & vt. 伤害（某人）

be harmful to sb./sth.对……有害

do harm to sb.= do sb. harm = harm sb.对……有害；伤害……

1) Everyone knows that smoking is harmful to your health.

2) In many cases, too much care for children from parents might even do harm to their growth.

3) Reading in the sun does a lot of harm to your eyes.

= Reading in the sun does your eyes a lot of harm.

= Reading in the sun is very harmful to your eyes.

在阳光下看书对你的眼睛伤害很大。