高中英语人教版 (2019)选择性必修 第二册Unit 1 Science and Scientists教学ppt课件

阅读P7－9教材课文，选择最佳答案。

1．Why did Qian Xuesen change his major to aviation?

A．Because he was not interested in his former major.

B．Because he could get a well paid job in the future.

C．Because he felt it his duty to help his homeland.

D．Because the country asked him to do so.

2．What made Qian Xuesen so creative and outstanding according to the passage?

A．His strong interest in art like music and drawing.

B．His research in the United States.

C．His friends' encouragement.

D．His habit of reading a lot.

3．How long did Qian Xuesen stay in the United States?

A．About 15 years. B．About 20 years.

C．About 25 years.   D．About 30 years.

4．How was Hawking's own theory proved correct?

A．Fred Hoyle admitted the mistake himself.

B．He worked with others to prove it true.

C．He pointed out and corrected Fred Hoyle's mistake in the maths.

D．Hawking was one of the most famous scientists in physics at the moment.

5．What's the main idea of the passage?

A．Being careful is the key to success.

B．A great scientist is a man who works hard.

C．A great scientist should be hard­working，determined and full of love.

D．As long as a person is intelligent and brilliant，he will make a great scientist.

[答案]　1－5　CABCC

Words and Phrases

　pour vt.倒出；倾泻；斟(饮料)

(教材P7)　A non­Newtonian fluid is strange because you can pour it like a liquid，but if you put any pressure on it，it suddenly becomes hard as concrete.

非牛顿流体很奇怪，因为你可以把它像液体一样倒出来，但如果你对它施加压力，它会突然变得像混凝土一样硬。

[例1]　After the meeting the people poured out in crowds.

散会后人们成群地涌出来。

[例2]　People poured into the hall.

人们涌进大厅。

[即学即练]　单句语法填空/完成句子

①The rays of the sun poured in through the window.

②The river pours into the sea.

③Sobbing，she poured out the whole story.

④He was seriously wounded.Blood poured out of the wound.

⑤The storm clouds gathered and the rain poured down．

乌云密布，下起了倾盆大雨。

　break out(战争、打斗等不愉快的事情)突然开始；爆发

(教材P7)　However，after the Songhu Battle broke out in 1932，Qian made the decision to switch his major to aviation because he realised that China needed its own powerful air force to protect and defend the country.

然而，在1932年“淞沪会战”爆发后，钱学森决定转学航空专业，因为他意识到中国需要自己强大的空军来保护和保卫国家。

[例1]　Something unexpected always breaks out in this area.

在这一地区总有意想不到的事情发生。

[例2]　The Second World War broke out in September 1939.

第二次世界大战爆发于1939年9月。

[即学即练]　完成句子

①He broke into my house and stole my money.

他闯进我家偷了我的钱。

②The meeting broke up at eleven o'clock.

在11点钟散会。

③Once you join them，you can never break away from them.

一旦你入了他们的伙，你就永远不能脱离他们。

④If you go on working like that，you will break down sooner or later.

如果你继续像那样工作的话，你迟早会累垮的。

　in charge of主管；掌管

(教材P8)　He received a hero's welcome from his homeland and was put in charge of not only developing China's rocket science but also its space and missile programme.

他受到了来自祖国的英雄般的欢迎，不仅负责发展中国的火箭科学，还负责中国的太空和导弹计划。

[例1]　I'll be in charge of the whole factory next week when the director is away.

下周厂长不在时，我将负责整个工厂。

[例2]　The cook is in charge of the kitchen helper.

这位厨师负责管理帮厨工。

[即学即练]　完成句子/一句多译

①The company was badly organized until she took charge of it.

公司管理很差，直到她掌管为止。

②The performers have all offered their services free of charge.

演员们都愿意免费出演。

③The teacher is in charge of the class．

这位教师负责这个班。

④The company is in the charge of Tom when the boss is away.

＝Tom is in charge of the company when the boss is away.

当老板不在的时候由汤姆负责公司业务。

　fault n. 弱点；过错

(教材P9)　Above all，Hawking was willing to admit his faults.

最重要的是，霍金愿意承认自己的错误。

[例1]　It was all my fault.

这都是我的错。

[例2]　There is a fault in this machine.

这台机器出了故障。

[即学即练]　单句语法填空/完成句子

①He is always finding fault with me，which makes me very angry.

②I can't find fault in your paper.It is perfect.

③Her greatest fault is that she talks too much.

她最大的缺点是话太多。

Sentence Pattern

　“否定词＋比较级”表示最高级

(教材P7)　Perhaps no other scientist has had a greater impact on China's aerospace science than Qian Xuesen.

也许再没有哪一位科学家比钱学森对中国航天科学的影响更大了。

句式分析：句中no...greater...than为“否定词＋形容词/副词比较级＋than”结构，表示最高级。

[例1]　Unfortunately，the technology of climate change is no simpler than anything else.

不幸的是，改变气候的科技比任何事情都要复杂。

[例2]　What a wonderful novel！I have never read a more moving one.

多么好的一本小说啊！我从未读过比这更感人的了。

[即学即练]　完成句子

①I have never spent a more worrying day．

我从来没有经历过比这更令人担忧的一天了。

②Tom is more intelligent than any other student/all the other students in his class.

汤姆是他班上最聪明的学生。

③Nothing is as/so important as(＝more important than) practice.

实践最重要。

④No other book has had a greater effect on my life.

再没有别的书对我的生活有更大的影响了。

数据信息题——“加减乘除”法

[典例剖析]　

In a recycling economy，we would make one set of 100 cans to start with，then replace them over and over again with recycled cans.Since almost 3% of the metal is lost during reprocessing，we'd have to make an extra 10 cans each year. —and we'll still have 100 left over for the next cat.

How many cans will be used up in a cat's 15­year lifetime in a recycling economy?

A．50.     B．100.　　C．150.      D．250.

★试题特点

数据信息题一般需要根据阅读材料中给出的有关数据，通过计算(加减乘除)，得出正确的结论。

★解题思路

Step 1：确定题干中的关键词(题干黑体部分)；

Step 2：根据关键词定位信息句(Ｋ中部分)；

Step 3：尝试解答——根据信息句可知，在循环经济中，要养活一只存活15年的猫需要用掉150个罐。故选C。

★名师点津

(1)简单的数据可采用“推算法”，即以有关数据为基础，进行简单的运算。

(2)数据较多的文章，通常采用“列表法”，即按一定的规律将数据分门别类地列出，化模糊为清晰，为计算打下基础。

[即学即练]

A

If Kangkang wants to learn English on Saturday，it'll cost him         a day.

A．￥50     B．￥100　　C．￥150　　D．￥200

C　[浏览题目后可知，答案应该在第二个表格City English Center内寻找。阅读表格内信息可以得知，英语课一小时50元，从8：00～11：00一天上课3小时。题目中问康康在周六学英语，一天需花费多少钱？通过分析可得50元/小时×3小时＝150元。因此答案选择C。]

B

“Let's go down one more，push your enter key...” says a volunteer helping senior citizens work a web session on the Internet.

David Lansdale has found a way to light up the lives of the elderly.He gets them wired to the Internet.“If you hit your enter key，it will bring up this particular e­mail...”

Pauline Allen is one of those who has started using the Internet.“I thought I was through with life，I was ready for a rocking chair，because I was 86 years old.And I haven't found the rocking chair yet.”“You found the keyboard？” asks the reporter.“That's right，I found the keyboard.”

The average age of Lansdale's students is around 68.All are in nursing or assisted care homes.He used family relationships to introduce them to the World Wide Web.

David Lansdale says，“Here they are in California，the family was back in New York，the opportunity to connect，to cross the time and space，was incredibly precious opportunity to them.”

“I hear you are so beautiful.” Lillian Sher writes an e­mail to a newborn great granddaughter.

Working with one another，the senior learn as a group.They learn to master the Internet and to overcome what Lansdale calls the maladies of the institutionalized：loneliness，helplessness，boredom，and loss of memory.

Mary Harvey says，“Bingo just doesn't interest me.But this does，believe me，this does.”

Ninety­four year old Ruth Hyman is a star pupil and instructor.She says，“When I send a letter to my grandchildren，and great grandchildren，they hang it up in their offices，just like I used to hang their drawings on my refrigerator.Ha，ha.”

David Lansdale says，“There's a collective benefit.There is an element of treatment.Remember we started as a support group.”

Dixon Moorehouse says，“I just wish I was 15 years old and getting to learn all this.” The senior call their weekly meetings Monday Night Live.And many say the meetings have given them new life.

Ruth Hyman says，“Three years ago，they told me I wasn't going to live.But I showed them，and got work，and I've worked ever since.”

How many examples does the writer give to prove that the senior enjoy the Internet?

A．Four.     B．Five.  C．Six.     D．Seven.

B　[本文主要讲述老年人学习上网的情况，其中David Lansdale是这一活动的举办者，不应算在本题所要求的数目之内，末段的Ruth Hyman前文已经出现，不应重复计数，故文章中所列实例分别是：Pauline Allen、Lillian Sher、Mary Harvey、Ruth Hyman和Dixon Moorehouse共五人。故选项B正确。]