Unit 3 Science and nature.doc

Period 2 Reading(2)Learning aims:1) To help the students better understand the words and sentences used in the article.Teaching procedures:1) Scientists have announced that they have cloned the first human embryo.【同位语从句】(L1)2) cause much debate引起争论 (L2)3) *On the one hand,some scientists point out that if you clone an embryo, you can provide valuable human tissues-such as bone or lung tissue-that could be used to save human lives.【本句中含有三个从句，分别是宾语从句，条件状语从句和定语从句。point out meansto tell someone something that he/she did not know or never thought about.区别point out and point to.】(L2-4)4) *On the other hand 1,many people,including some scientists,disagree and are afraid that, if mankind toy with nature2 in this way,we may be on our way to3 producing a real-life Frankensteins monster.(L5-7)【on the one hand.on the other hand.一方面.另一方面。they are used when comparing different or opposite facts or ideas.toy with nature把自然当做儿戏.on the way to doing sth.在做某事的路上】5) Cloning is producing【表语】 an exact copy of a plant or an animal (by) using its cells.【条件状语】(L8)6) The first mammal to (be cloned successfully from an adult cell) was Dolly the sheep.【which has been successfully cloned，the sheep是同位语】(L9)7) in early 2003在2003年初 (L10）8) than normal与正常情况相比（L11）9) lead to more diseases 导致更多疾病（L12)10) *However,in general1 the scientists were praised for2 their wonderful scientific advance3.(L12-13) 【总的来说usuallyorin most situations.praise sb. for sth. 因.表扬某人。scientific advance科学进步】11) *Although he researches1 cloning,his intention2 has never been to creat copies of humans.(L15-16)【research is a verb here,meaning to study a subject in detail,especially in order to discover new facts or test new ention is a noun, meaning aimorpurpose the intention to do sth/of doing sth.做某事的打算】12) concentrate on集中精力于.(L17)13) He thinks research efforts should concentrate on creating new tissues and organs (that can be used to cure diseases) like cancer.【定语从句】(L17)14) However, some people believe that cloning human embryos with the intention if destroying them shows no respect for human life1.【that 引导的宾语从句中主语是cloning human embryos with the intention if destroying them.show no respect for human life对人类生命不尊重】（L18-20）15) cause a lot of anxiety引起焦虑（21）16) be anxious to do 迫切地要做某事（22）17) .if I had the chance, I would have a cloned baby right now.【虚拟语气】（24）18) While1（尽管，引导让步状语从句）cloning human embryos is not legal2 in many countries, some scientists are already pushing ahead with3 research in order to produce a cloned human baby.【although illegal 努力推进.】（25）19) *In China,scientists have focused1 their efforts on cloning animals, as well as2 cloned tissues to be used in medical treatment3. 【focus.on.to pay special attention to a particular person or thing instead of others集中精力于.as well as也besides/in addition to。to be used in medical treatment 在句中充当定语；medical treatment医疗】（29-30）20) succeed in doing sth 成功做某事 ;fail to do sth(反）（30）21) continue to=try doing（31）22) benefit mankind有利于人类（32）23) *If we toy with nature1, we will have to deal with2 the consequences3.【toy with here means to deal carelessly with a person or thing it can also mean to keep moving or touching something or to consider doing something but not seriouslydeal with means to solve a problemconsequence means a result or an effect of a particular action or a set of conditions】(34-35)24) a product for sale 销售产品；on sale 打折出售；on sale 20% off八折出售（36）25) the human race 人类(37）26） use up sth 用光；用尽 = run out（37）27） feel sorry for sb.为某人感到难过（39）28)*I would like to point out that there are many children in the world宾语从句 （with on parents） who would be delighted to have a mother定语从句.(40)29)I would like to comment on your article The perfect copy.【ment to express ones ideas or opinions(on sth) ; n.opinion given briefly in speech or writing about an event, or in explanation or criticism of something.】(44)30)in complete agreement with sb/sth 完全同意.(46)31)after all 毕竟（46）32）challenge moral ideas 向道德提出挑战（47）33）on a personal note=in my personal opinion 就个人观点（48）34）totally transform my life 完全改变我的生活（48）35）die of heart failure 死于心脏衰竭【表示死的原因，die 后既可接介词of,又可接from，两者的区别是：若死因存在于人体之上或之内（主要指疾病，衰老等自身的原因），一般用介词of,如 die of illness(heart trouble, a fever,cancer,etc);若死因是由环境造成的（主要指事故等方面的外部原因），一般用介词from,如 die from an eart