Unit 3 Science versus nature教案

4. i don’t want to adopt someone else’s child—if i had the chance, i would have a cloned baby right now.
adopt “收養(yǎng)，領(lǐng)養(yǎng)” ；“采用”
many families have to adopt children because they cannot have a baby of their own.領(lǐng)養(yǎng)小孩
they adopted different methods to try to solve the problems. 采用不同的方法

if i had met (meet) him yesterday, i would have told(tell) him about it.
should it rain (rain) tomorrow, the crops would be saved.

5. while cloning human embryos is not legal in many countries, some scientists are already pushing ahead with research in order to produce a cloned human baby.
(1) while : conj.  1) though盡管，雖然;  2) when/as…的時(shí)候;   3)而
雖然我理解你所說(shuō)的,但我不同意你的觀點(diǎn).
though i understand what you said, i can't agree with you
母親在做飯我在看電視.
mother was cooking while i was watching tv.
b. i do every single bit of housework ________ my husband bob just does the dishes now and then.
a. since   b. while   c. when   d. as
a. we thought there were 35 students in the dining hall, _____, in fact, there were 40.
a. while   b. whether   c. what   d. which
d. _____english can be difficult to learn, it is a very useful tool for communication.
a. because      b. as         c. once        d. while
(2) push ahead with推進(jìn)，推行
這樣不得人心的政策是很難推行下去的。
it is hard to push ahead with such an unpopular policy.

6. china has succeeded in producing clones of cows and goats, and continues to research ways in which cloning can benefit mankind.
(1) succeed in doing sth 成功做某事
he succeeded in turning to being a businessman.
=he managed to turn to being a businessman.
(2)benefit (n.) 利益，好處；(vt.)使…受益
(詞組) be of benefit to =be beneficial to對(duì)…有裨益 
for the benefit of…為了…的利益
benefit sb./sth. 有益于某人/某物        benefit from/by 從…中獲益
it is said yoga is of great benefit to health.
=it is said yoga is very beneficial to health.
這種愚蠢的行為對(duì)你沒(méi)有好處。（benefit sb）
this foolish behaviour didn’t benefit you.
許多學(xué)生都得益于這本好字典。（benefit from/by）
many students have benefited from/by this good dictionary a lot.
7. i would like to comment on your article ‘the perfect copy’.
   comment (n.& vi.) 評(píng)論，評(píng)注
   make (a comment)comments on/upon sb./sth.= comment on/ upon sb./sth. 評(píng)論某人（某事）