Unit1 Science and scientist
Grammar
Predicative Clause
单元内容分析:本单元围绕科学和科学家的主题展开。讲述了几位中外科学家的生平、经历、研究过程和重要贡献,以及近年来中国在科技创新方面取得的伟大成就,旨在激发青少年对科学研究的兴趣,引导他们思考科学研究的方法,探究科学家的必备品质和科学精神的基本要素。
核心素养 学习目标
语言能力 通过完成语法感知和探究,理解表语从句的用法。
学习能力 能够通过观察与探究,理解语法概念与用法。
文化意识 通过完成自学内容,预习本单元语法,为充分理解与掌握该语法打好基础,做好预热,提升英语语感。
思维品质 通过学习表语从句,提升学生的语法理解与运用能力。
【语法感知】
I.观察下面句子,分析句子成分:
1.The person who stood in front of you just now is headmaster.
2.The door remained closed.
3.My job is to teach you English.
4.The reason why he came late was that his clock didn’t work.
II.语法感知表语从句
His suggestion is that we should stay calm.
②The trouble is that we are short of funds.
③The question is whether the enemy is marching towards us.
④The argument is whether it will rain tomorrow.
⑤That is what I want to tell you.
⑥My problem is which computer I should choose.
⑦The problem is when we can get a pay rise.
⑧That's why I want you to work there.
⑨She seems as if she had done a great thing.
⑩It is because you eat too much.
1. ①②句的引导词为 。2. ③④句的引导词为 。
3. ⑤⑥句的引导词为 。4. ⑦⑧句的引导词为 。
5. ⑨句的引导词为 。6. ⑩句的引导词为 。
【语法探究】
一、理解概念
在复合句中充当_________的从句叫表语从句。表语从句一般用在“主语+系动词+表语”的结构中,它最明显的特征是跟在连系动词be之后。
二.表语从句的常用引导词及其用法:
1. 从属连词 _____引导表语从句时只起连接作用,在句子中不作任何成分,也无任何意义,但通常不能省略。The fact is that he is old enough to go to school.
2. 从属连词_________意为“是否”,引导表语从句时只起连接作用,在句子中不作任何成分。His first question was whether Mr Smith had arrived yet.
3. 连接代词________________________在表语从句中作主语、宾语、表语或定语。
The question is what caused the accident.
My trouble is who (whom) I can turn to.
My question is whose turn it is to be on duty today.
4. 连接副词__________________等在表语从句中作时间、地点、原因、方式等状语。
The question is when he can arrive at the hotel.
This is where he was born.
That is why you see this old woman before you now, Jeanne.
5. 连接词_____________引导的表语从句常置于连系动词look, seem, sound, appear等后面。
It looks as if/though it is going to rain.
It sounds as if/though someone is knocking on the door.
6.__________引导的表语从句通常只用于This/That/It is because ... 结构中。
I'm very angry now. That is because you haven't called me for a long time.
三.即学即练
as if that what who when how why whose which whether
A: Absolutely ! You may not believe it, but that was ___________happened at the initial stage of our group's research on developing a vaccine for malaria.
B: Yes, it is. And it seemed _______________all the theories were useful, but the fact was_________ we couldn't persuade one another that one theory was better than another.
C:Exactly The problem was not about ______________all our theories were equally good, but in deciding ___________________theory to depend upon.
D: We realized that what we cared about was not_______________ aspect we needed to develop a theory in, but rather _________________we can reduce the cost of a vaccine without reducing its effect!
E: You're right. At last, we became focused on the key issue, which was _________we had to Cary out the research in the first place.
III.完成句子
1)The fact was _____________________________.事实是他没有做真正的尝试。
2) The question is ____________________________.问题是这部电影是否值得看。
3) Now ____________________________________ she had known Millie for years.
现在看起来好像她认识米莉已有好多年了。
4) My advice is that you_______________________as often as possible. 我的建议是你要尽可能经常地联系说英语。
5) That’s __________________________________.那就是我第一次遇见她的地方。
6) The problem is __________________.问题是谁才真正适合做这份艰苦的工作。
【知识建构】
【我的困惑】
一、引导词选择(从括号内选合适的词填空,10 分)
1.The most important quality of a scientist is ______ he never gives up when facing failures. (that / what)
2.The question we are discussing now is ______ we can finish the experiment in three days. (if / whether)
3.Einstein’s famous idea is ______ energy equals mass times the speed of light squared. (how / that)
4.The problem with his research is ______ he can get enough funding from the government. (where / how)
5.This is ______ Madame Curie discovered radium more than 100 years ago. (where / why)
6.The reason he won the science award is ______ his invention has helped millions of people. (because / that)
7.We all wonder ______ kind of research method is more effective for this project. (what / which)
8.It seems ______ the new technology will change the way we study science. (as if / why)
9.The key point of his report is ______ we should protect the environment while developing science. (that / whether)
10.She can’t decide ______ lab equipment to buy for her students. (which / who)
二、句子改错(找出每句中表语从句的错误并改正,10 分)
1.His suggestion is we should do more fieldwork to collect data.
2.The fact is what he has made great progress in his study of chemistry.
3.The question is if we need to invite Professor Li to our science lecture.
4.That’s because did he fail the experiment—he didn’t follow the steps correctly.
三、汉译英(用表语从句完成句子,15 分)
1.这位科学家的梦想是他能为解决气候变化问题贡献力量。
2.我们现在面临的挑战是如何在一周内完成这份科学报告。
3.这就是为什么很多年轻人希望成为像屠呦呦一样的科学家。
4.看起来这个新发现会对医学发展产生重大影响。
5.问题不是我们缺乏科学知识,而是我们缺少实践机会。
参考答案及解析
一、引导词选择
1.that(从句句意完整,无意义,用 that)
2.whether(表语从句中 “是否” 用 whether,不用 if)
3.that(从句是客观事实陈述,用 that)
4.how(表 “如何获得资金”,作方式状语,用 how)
5.where(表 “居里夫人发现镭的地方”,作地点状语,用 where)
6.because(“The reason is because...” 为固定结构,表 “原因是……”)
7.what(“what kind of” 为固定搭配,表 “什么种类的”,无选择范围)
8.as if(“It seems as if...” 表 “看起来好像……”,符合语境)
9.that(从句句意完整,表肯定陈述,用 that)
10.which(“which lab equipment” 表 “哪一套实验设备”,有选择范围)
二、句子改错
1.错误:缺少引导词 that
改正:His suggestion is that we should do more fieldwork to collect data.(that 引导表语从句不可省略)
2.错误:连接词误用 what
改正:The fact is that he has made great progress in his study of chemistry.(从句句意完整,用 that,what 需在从句中作成分)
3.错误:用 if 表 “是否”
改正:The question is whether we need to invite Professor Li to our science lecture.(表语从句中 “是否” 只能用 whether)
4.错误:从句语序错误(疑问句语序变陈述句语序)
改正:That’s because he failed the experiment—he didn’t follow the steps correctly.(表语从句需用陈述句语序)
三、汉译英
1.The scientist’s dream is that he can contribute to solving the problem of climate change.
2.The challenge we are facing now is how we can finish this scientific report in a week.
3.That is why many young people want to become scientists like Tu Youyou.
4.It seems as if this new discovery will have a great influence on the development of medicine.
5.The problem is not that we lack scientific knowledge, but that we lack practical opportunities.