1、UNIT 3ENVIRONMENTAL PROTECTIONThe“natural”greenhouse effect The“natural”greenhouse effect refers torefers to the fact that the fact that heat from the sun enters the atmosphere and warms heat from the sun enters the atmosphere and warms Earths surface as short-wave radiation.(Earths surface as short
2、-wave radiation.(教材教材P26)P26)1 1refer torefer to指的是；提到，说起；参考；涉及指的是；提到，说起；参考；涉及reference reference n n.提及；谈到；参考提及；谈到；参考in/with reference toin/with reference to关于关于好句背诵好句背诵When he delivered his speech on how to release the great When he delivered his speech on how to release the great pressurepressure
3、，he didnt refer to his notes.he didnt refer to his notes.In reference to English study methodsIn reference to English study methods，I have the I have the following practical suggestions to share with you.following practical suggestions to share with you.一词多义写出下列句子中refer to的汉语意思She referred to the su
4、bject several times during the speech._These notes refer to the case of a murderer._You can refer to the dictionary when coming across unfamiliar words._When I spoke of that girl，I wasnt referring to her daughter._提到提到涉及涉及参考参考指的是指的是It is our responsibility to It is our responsibility to seizeseize e
5、very opportunity to every opportunity to educate everyone about global warmingeducate everyone about global warming，along with its along with its causes and impactscauses and impacts，because this is the most serious because this is the most serious issue affecting all of us on this planet.(issue aff
6、ecting all of us on this planet.(教材教材P27)P27)2 2seize seize vtvt.抓住；夺取；控制抓住；夺取；控制seize sb.by theseize sb.by the身体部位身体部位 抓住某人的抓住某人的seize a chance/an opportunity seize a chance/an opportunity 抓住机会抓住机会seize on/uponseize on/upon抓住；突然对抓住；突然对大为关注大为关注好句背诵好句背诵I was about to fall off the cliff when my father
7、 reached I was about to fall off the cliff when my father reached out his strong hand and seized me by the arm.out his strong hand and seized me by the arm.I will seize the precious opportunity to participate in I will seize the precious opportunity to participate in the activity to enhance my overa
8、ll ability.the activity to enhance my overall ability.What made his mother burn with anger was that he seized What made his mother burn with anger was that he seized on/upon the rain as an excuse for missing school.on/upon the rain as an excuse for missing school.单句语法填空/完成句子Before he could run away，
9、she seized him the collar.If you think your idea has potential，seize it immediately.我们应该抓住机会努力工作来实现我们的目标。We to achieve our goal.byon/uponshould seize the opportunity to work hardThere is little doubt thatThere is little doubt that Earth is getting warmer and Earth is getting warmer and warmer.(warme
10、r.(教材教材P26)P26)3 3There is little doubt that.(1)本句中的doubt后接同位语从句，说明doubt的具体内容。(2)doubt的常见句型：There is some doubt whether.有些疑问。There is no doubt that.是毫无疑问的。I doubt whether/if./I have some doubt whether.我怀疑I dont doubt that./I have no doubt that.我毫不怀疑好句背诵好句背诵There is some doubt whether I can stimulate
11、 him to be absorbed in achieving his goal.There is no doubt that learning music will be beneficial to children throughout their lives.I doubt whether/if he is qualified for the position advertised in the newspaper.I have some doubt whether he is qualified for the position advertised in the newspaper
12、.I dont doubt that computers are playing an increasingly important part in our routine life.I have no doubt that computers are playing an increasingly important part in our routine life.单句语法填空/完成句子There is some doubt he will be elected president.I never doubt special classes can help the gifted chil
13、dren to graduate earlier and take their place in life sooner.毫无疑问，当你筋疲力尽时，一杯茶可以使你精力充沛。a cup of tea can make you dynamic when you are worn out.whetherthatThere is no doubt thatWithout this processWithout this process，Earth could not sustain life.(Earth could not sustain life.(教材教材P27)P27)4 4withoutwi
14、thout引导的虚拟语气引导的虚拟语气(1)(1)本句中的本句中的without this processwithout this process是介词短语，相当于条件状语是介词短语，相当于条件状语从句，引起虚拟语气。从句，引起虚拟语气。(2)(2)类似用法的还有：类似用法的还有：withwith，otherwiseotherwise，oror，but forbut for等。等。好句背诵好句背诵Without/But for your generous assistance，I couldnt have won the first prize in the English Speaking
15、Competition.You generously assisted me，otherwise/or I couldnt have won the first prize in the English Speaking Competition.With your wonderful advice，I would overcome the difficulty and get ready for greater challenges.单句语法填空/完成句子With so many strict restrictions，I wouldnt (admit)to the club.没有母亲的鼓励和
16、陪伴，我不会成功地戒烟戒酒。，I wouldnt have succeeded in getting rid of tobacco and alcohol.be admittedWithout/But for my mothers encouragement and companyThere is strong and comprehensive evidence that the rise There is strong and comprehensive evidence that the rise in temperature has led to an increase in extr
17、eme weather in temperature has led to an increase in extreme weather and natural disasters worldwideand natural disasters worldwide，not onlynot only causing serious causing serious damagedamage，but also but also costing human lives.(costing human lives.(教材教材P27)P27)5 5not only.but also.not only.but
18、also.“not only.but also.“不但不但而且而且”，连接并列成分。，连接并列成分。(1)(1)通常连接两个对称的并列成分，着重强调后者，其中的通常连接两个对称的并列成分，着重强调后者，其中的alsoalso有有时可以省略。时可以省略。(2)(2)若连接两个句子，且若连接两个句子，且not onlynot only位于句首时，位于句首时，not onlynot only后面的句后面的句子要用部分倒装。子要用部分倒装。(3)(3)若连接的两个成分作主语，其谓语通常与靠近的主语保持一致。若连接的两个成分作主语，其谓语通常与靠近的主语保持一致。(就近原则就近原则)好句背诵好句背诵No
19、t only can the clubs enrich your knowledge of Chinese Not only can the clubs enrich your knowledge of Chinese traditional culturetraditional culture，but they also make your school life but they also make your school life colorful and interesting.colorful and interesting.Not only you but also I am ab
20、sorbed in the important Not only you but also I am absorbed in the important scientific work.scientific work.句式升级My English teacher has not only made great achievements in her work but she also has won respect from her students.(改为倒装句)_Not only has my English teacher made great achievements in her w
21、ork but she also has won respect from her students.An expert who has studied polar bears for many years said An expert who has studied polar bears for many years said that from the position of its dead bodythat from the position of its dead body，the bear the bear appeared to have appeared to have st
22、arvedstarved and died.(and died.(教材教材P26)P26)1 1starve vi.&vt.(使使)挨饿；饿死挨饿；饿死(1)starve for 渴望；极渴望；极想得到想得到starve to death饿死饿死(2)starvation n.饥饿；饥饿；饿死饿死die of/from starvation饿死饿死(3)starving adj.极想的；渴望极想的；渴望的的be starving for渴望得到渴望得到I starve for/am starving for a chance to learn how to make dumplings，whi
23、ch is a typical Chinese custom.我渴望得到学习如何包饺子的机会，包饺子是典型的中国习俗。These people will unless they receive assistance soon.(starve)These people will unless they receive assistance soon.(starvation)除非马上得到援助，不然，这些人很快就会饿死。starve to deathdie of/from starvationWe as individuals can also reduce our“carbon footprint
24、”by restricting the amount of carbon dioxide our lifestyles produce.(教材P27)2 2restrict vt.限制；限定；束缚限制；限定；束缚(1)restrict.to.(1)restrict.to.把把限制在限制在(2)restriction(2)restriction n n.限制规定；限制法规；约束限制规定；限制法规；约束(3)restricted(3)restricted adjadj.有限的；受限制的有限的；受限制的(4)restrictive(4)restrictive adjadj.限制性的；约束的限制性的；
25、约束的My mother often restricts my freedom，which makes me burn with anger.我妈妈经常限制我的自由，这使我非常生气。The number of club members ten，so it is difficult to be admitted to the club.俱乐部成员的数量被限制在10人以内，因此进入这个俱乐部很难。His parents are trying to make up to him for the _(restrict)of urban living.他的父母正试图为城市生活的诸多限制而补偿他。is r
26、estricted torestrictions.单句语法填空单句语法填空1.The dentist refers _ many first-class articles in the world-famous magazines when writing a paper.2.I seized the surgeon by _ arm，begging him to save my poor son.3.I have some doubt _ my daughter is really absorbed in her studies.4.I am starving _ his tips on h
27、ow to remove my pessimistic thoughts.5.I have made up my mind to argue against these so-called _(restrict).restrict).tothewhetherforrestrictions1._ through the activity.毫无疑问，通过这次活动，我们已经意识到了强身健体的重要性。毫无疑问，通过这次活动，我们已经意识到了强身健体的重要性。2.，Bernard wouldnt have earned so much money.没有杰克做爆米花的好主意，伯纳德就不会赚如此多的钱没有杰
28、克做爆米花的好主意，伯纳德就不会赚如此多的钱。.完成句子完成句子There is no doubt that we have realized the importance of building up our bodyWithout Jacks wonderful idea to make popcorn3.My headteacher used to help me a lot，_ 我的班主任过去帮助我很多，否则我不会在学业上取得这样的进步我的班主任过去帮助我很多，否则我不会在学业上取得这样的进步。or/otherwise I wouldnthave made such academic progressThank you for listening!
