課程內(nèi)容
高中英語《克隆 Unit 2　Cloning（Part 3）》（選修8）
Review
從句練習(xí)題
1.One of them held the view (B)the book said was ritht.
A what that     B that what    C that   D whether
2.The reason (C)he has to go is( )his mother is ill in bed.
A why;why   B why;because   C why;that   D that;because
3.They received orders (B)the work be done right away.
A which     B that     C /     D when
4.I have no idea(C).
A how to do
B when shall we start out for the trip
C what has happened to my wife
D how much have they earned
5.Information has been put forward (B)more middle school graduates will be admitted into universities.
A while   B that  C when  D as
6.Along with the letter was his promise (B)he would visit me this coming Christmas.
A which  B that  C what  D whether
7.There is a new problem involved in the popularity of private cars(A) road conditions need( ).
A that;to be improved
B which;to be improved
C where;improving
D when;improving
8.That's the only thing (C) he can do now.
A which     B all      C that      D what
Grammar
The Noun clause( 三）
名詞性從句總結(jié)
名詞性從句包括：主語從句，賓語從句，表語從句，同位語從句
名詞性從句的特點
(1)語序
（2）時態(tài)
（3）連接詞的選用
（4）和其它從句的區(qū)別
一、名詞性從句的語序；陳述語序
(1)that和whether/if 引導(dǎo)的從句用陳述語序
She wondered if/whether the buses would still be running
She sensed that she was being watched by a tall man in a dark coat.
(2)疑問詞引導(dǎo)的名詞性從句也要求使用陳述句語序，不能用一般疑問句（倒裝）語序
Could you tell me where he lives?
How he succeeded is still a puzzle.
二 名詞性從句的時態(tài)；主從一致
名詞性從句的時態(tài)主要考查賓語從句中時態(tài)
1.如果主句時態(tài)是現(xiàn)在時或?qū)頃r，從句謂語可根據(jù)句意需要而選用任一種時態(tài)。
他相信他的夢想總有一天會實現(xiàn)的。
He believes (his dream wil come true some day).
請告訴我你昨天這個時候在干什么
Please tell me (what you were doing at this time yeaterday).
2.如果主句謂語是過去時，從句謂語動詞一般用過去的某種時態(tài)，但從句表達(dá)的是真理、自然規(guī)律等時，從句謂語通常用一般現(xiàn)在時。
他告訴我他正在為考試做準(zhǔn)備。
He told me (he was preparing for the examination).
他說他已離開家鄉(xiāng)十年了。
He told me (he had been away from his hometown for ten year).
老師告訴我們光是沿直線運行的。
The teacher told us (light travels in a straight line).
3.在“命令，要求，建議”等相關(guān)詞后的名詞性句中常用虛擬語氣（suggest(建議），propose,order,insist(堅決要求）,command,require,request,recommend(建議）advise....,包括賓語從句的時態(tài)，其相應(yīng)名詞的同位語從句，表語從句的時態(tài)也應(yīng)用虛擬語氣，即should+do/be,should可省去不要.)
He suggested that we (should) go there at once.
His suggestion is that we (should)go there at once.
His suggestion that we(should)go there at once is right.
三、名詞性從句中的連接詞的選用
連詞：because that/whether/as if(though)
連接代詞：what/who/which/whose/whom/whatever/whoever/whomever/whichever
連接副詞：where/when/why/how/wherever/whenever
連詞：引導(dǎo)從句，但在從句中不作成分
that:無詞義，不作成分，起連接作用
whether/if:“是否”不作成分，起連接作用
as if(though):“好像”，只連接表語從句
because:“因為”，只連接表語從句
連接代詞：引導(dǎo)從句，并在從句中作成分
what(ever):（無論）什么，作主/賓/表/定語
which(ever):(無論）哪一個（些）作主，賓，表 ，定語
who(ever):“（無論）誰（主格）”作主，賓
whom(ever)：“（無論）誰（賓格）”
whose(ever)：“無論）誰的，作定
連接副詞：引導(dǎo)從句，作狀語
when (ever)：”什么時候“作狀語
where ："什么地方"
how:怎樣
why:為什么
Skimming
Read the text,and then tell the following sentences are true or false.
1.Scientists are still experimenting with cloning mamals because thet think it can make meney.
2.The animals that have disappeared from the earth,like dinosaurs,can be brought back to life through cloning.
3.If we can clone any extinct animals,we should let them live in a zoo.
Comprehending
Read The return of the dinosaurs carefully and then answer the following questions.
1.Why shouldn't you clone an extinct animals unless there is enough diversity in the group?
There will not be enough genetic variation in the group to be able to resist new illnesses.
2.Why is it wrong to clone an extinct animal if it would have to live in z zoo?
It is not a good idea to clone an animal that would have to live in a zoo because it is not a suitable habitat to develop and increase its numbers.The zoo is not a natural environment for a wild animal.
3.Why can't you clone the DNA of animals that have been extinct longer than 10,000 years?
The DNA of animals more than 10,000 years old is not suitable for cloning,for it can't survive so long.
難句解析
1.From time to time,people suggest that extinct animals like dinosaurs,can possibly be brought back to life through cloning.
人們時常設(shè)想那些絕種的動物，例如恐龍，有可能通過克隆技術(shù)使它們復(fù)活。
2.Diversity in a group means having animals withe their genes arranged in different ways. 
群的多樣性指的是擁有基因排列方式不同的動物。
Homework
1.Go through the Noun Clauses and point out the difficulities.
2.Get ready for Unit 3.