选修8课文重点句型

1、选彳8课文重点句型unitl1 .原句:It is believed that before long the mix of nationalities will be so great that there will be no distinct major racial or cultural groups , but simply a mixture of many races and cultures.据信， 过 不了多久国籍相混的程度将如此大以至于不再有大的种族或文化团体，而仅仅是一个多文化的混 合体。句型：It is believed that.=People believe th

2、at.据信，人们认为说明：同类句型还有：It is thought that.人们认为 It is said that.据说It is reported that.据报道It is hoped that.希望It is decided that.兹决定It is suggested that.有人建议 人们相信健康重于财富。 . . 据报道，他是来自新西兰的一位学者。 . .2 .原句:However, it is likely that Native Americans were living in California at least fifteen thousand years ago

3、.（P2）然而，可能至少在15, 000年以前美洲土著人就住在加利福尼亚了。句型：It is likely/unlikely that.很/没可能巴西很有可能赢得世界杯。Brazil will win the World Cup. 她病得很厉害，看来不大可能康复了。She is so ill that she seems she will pull through?非常可能，金星上没有生命。there were no life on mars.3 .课本原句 :It is believed that before long the mix of nationalities will be so

4、 great that there will be no distinct major racial or cultural groups, but simply a mixture of many races and cultures.（P3 61）人们认为，要不了多久，各种国籍的混合将会非常之大，以致于不可能存在一种主要的种族或文化群体，而只是多种族、多文化的混合体结构分析：本句It is believed that.句型里that引导一个 从句；该主语从句中又有 so.that.句型，that引导 状语从句；该状语从句的结构是：there will be no.or.but .and .

5、（将没有或而是）。unit21 .原句：Then came the disturbing news that Dolly had become seriously ill.（ 倒装句）接着传来了多 莉病重的坏消息。（L2, P12）句型：then(now, there, here)+不及物动词 + 主语说明：另外，以out, in, up, down, away等副词开头的句子，谓语动词是一般时态的不及物动词be, come, go, begin等，且主语为名词时，也常用倒装表示强调。 He rushed out.=. Tom rushed out.=.你盼望已久的信在这儿。you have

6、been looking forward to.2 .原句:The initial requirement is that you need perfect DNA which gives information for how cells are to grow.首先要求你有完好的DNA,以提供有关细胞将如何生长的信息。(L18, P15)句型：The requirement is that.(should)do 要求是说明:表示说话人愿望 (wish/desire)、建议(suggestion/advice段求(requirement/demand)、命令 (order, command)

7、等的名词，其后的表语 /同位语从句的谓语动词用 (should)+ do。should可以省 略。学生要学英语的建议值得考虑。The suggestion that is worth considering. 我们都同意会议延期的建议。We all agree to the suggestion . 我的意见是在接受之前必须仔细考虑。My idea is that before accepting it.课本原句： The initial requirement is that you need perfect DNA which gives information for how cells

8、 are to grow.首先要求你有完好的 DNA,以提供有关细胞将如何生长的信息。结构分析：本句虽然句子不长，但却从句套从句，共有三个从句。主句是 The initial requirement is that.,其中that引导的是一个 从句；在这个主语从句中 which gives information for how cells are to grow 是 从句，修饰先行词 perfect DNA;在这个定语从句中 how cells are to grow(细胞如何生长)是一个 从句，作for的宾语；for how cells are to grow 这个介词短语作定语，修饰 i

9、nformation ,即细胞如何生长的信息”。unit31 .原句:Only after you have had that recognition can you say that you are truly an inventor.(P21)只有你得到这种承认，你才可以说是一个真正的发明家。Gold will not buy anything.黄金并非万能。句型：Only after/when.(主句倒装)只有在之后，才 只有抓住今天，才能不丢失明天。Only when you seize today tomorrow. 只有当自由失去时，人们才懂得它的价值。Only when one

10、loses freedom one its value.只是在做了几百次实验之后，他们才成功地解决了这一问题。 they had performed hundreds of experiments they succeed in solving the problem.2 .原句：The patent was given in 1876 , but it was not until five days later that Bell sent his first telephone message to his assistant Watson.(P25这项专禾U是 1876年发布的，但是贝尔

11、是在五天以 后才跟他的助手华生通了第一次电话。句型：It was not until .that 直至 U才等你有了孩子才知道你父母的艰辛。It is you have kids you know the hardships your parents suffered.直到我遇到你以后，我才真正体会到幸福。I met you that I knew real happiness.It was not until the beginning of the twentieth century.3 .原句： and they seem to have made their home here, no

12、t far from the walnut tree.(L4 , P20)它们 好像在这儿安了家，离核桃树不远。句型： Sb.seems to do.=It seems that sb.do子像他好像什么都知道。他好像已在销售部工作多年in sales for several years.4 .课本原句： The first thing I did was to see if there were any products that might help me , but there only seemed to be powders designed to kill snakes我所做的第一

13、件事就是去看看是否有什么产品可以帮到我，但是能找到的看来只有一些专门用来灭蛇的粉末。结构分析：全句是一个由 but连接的并列句，前一分句的主干是 the first thing was to see.; (that)I did是定语从句，修饰 the first thing ； if引导的从句作 see的 ,在这个 从 句中，that might help me 是定语从句，修饰 products; but 后的分句中，designed to kill snakes是过去分词短语作 ,修饰powders。顺便提提，句中两个定语从句都只能由that,不用由which引导，你知道为什么吗？unit

14、41 .What if I was?(P29 36)如果我是又怎么样？句型：What if.?如果将会怎么样？/又有什么关系？ 如果他不同意该怎么办呢？?2 .原句:I thought maybe you was a policeman in disguise.(P29)我还以为你是 个便衣警察呢。句型:I thought(that).我原以为我原以为他是她的叔叔呢！he her uncle.I thought the box .3 .原句:Suppose you have a chance to help Eliza improve her use of the English langua

15、ge.(P31) 假 设你有机会帮助伊莉莎提高她运用英语的水平。句型： Suppose that(=supposing that).假设说明：suppose用来表示条件时，相当于if(假设)。假如他缺席，我们怎么办？, what shall we do?, how would you spend it?假定这消息是真白1那又怎样？, what then?4 .课本原句： There you are and you come from the west end of London , born in Lisson Grove if I' m not mistaken呀，要是我没有弄错的话

16、，你是伦敦西边的人，出生在里森格罗弗。结构分析：and连接两个并列句，and后一分句中含有if引导的 从句。形容词短语born in Lisson Grove作伴随状语，说明主语所处的状态。unit51 .原句：If only she had looked ahead and planned better this year!（P43）她今年要是早有预见，计 划得更好些就好了。句型：If only.要是就好了！说明：该句型谓语动词用虚拟语气，表示与过去、现在和将来事实相反的愿望。要是明天我们能休息一天该多好哇！!要是他没有坐那趟车就好了！2 .原句:Abruptly she sat down

17、, only to be scooped up by her laughing, shouting sistei; Luna.（P43） 突然间她坐了下去，但又被她那又笑又叫的妹妹卢娜一把搂了起来。句型：only to do/be（结果）却说明：句中不定式短语用作结果状语，表示意料之外或不符合说话人期望的结果。这种结构也常常在不定式前加上 only来强调惊讶与失望。 他匆忙赶到火车站时，火车却走了。He hurried to the station . 李夫人赶紧跑回家结果发现她家的厨房着火了。Mrs.Li hurried home .他整整花了四年的时间得到了学位，结果却发现大学生很难找到工作。He spent four years getting a degree, there were no jobs for graduates.