2018高考一轮（人教·通用版）英语（课件+教师用书+练习）第二部分　语法专题突破:专题9　并列句和状语从句 （2份打包）

专题九　并列句和状语从句 考点一　并列句 (一)并列句的4种类型 1．表并列、递进或顺承关系：and，both...and...，neither...nor...，not only...but also... The earth is one of the sun's planets，and the moon is our satellite. 地球是太阳系中的一颗行星，月亮是地球的卫星。 2．表转折、对比关系：but，yet，while ①The problem was a little hard，yet I was able to work it out. 这道题有点难，然而我却把它做出来了。 ②The winter in Beijing is very cold while that of Kunming is warm. 北京的冬天很冷，然而昆明的冬天却很暖和。 3．表选择关系：or，otherwise，or else，either...or...，not...but... Now you can either have a rest or you can go to the cinema. 现在你可以休息，也可以去看电影。 4．表因果关系：so，for(表“由于”，一般不放在句首) He found it increasingly difficult to read，for his eyesight was beginning to fail. 由于他视力开始下降，他发现读书越来越困难了。 (二)并列句的2大句式 1．when“就在这时，突然”，常用以下句式 ·sb.be about to do/on the point of doing sth.when...某人正要做某事，突然…… ·sb.be doing sth.when.... 某人正在做某事，突然…… ·sb.had(just)done sth.when... 某人刚做完某事，突然…… ①One Friday，we were packing to leave for a weekend away when my daughter heard cries for help. 当我们周五在收拾行李要去度周末时，我的女儿突然听到了呼救声。 ②She had just finished her homework when her mother asked her to practice playing the piano yesterday. 昨天她刚完成家庭作业，妈妈就让她练习钢琴。 2．and与or/otherwise用于并列句 ·祈使句＋and＋陈述句(and表示顺承关系) ·祈使句＋or/otherwise＋陈述句(or/otherwise表示转折关系) ①Find ways to praise your children often，and you'll find they will open their hearts to you. 设法常常表扬你的孩子，这样你就会发现他们乐意向你敞开心扉。 ②Hurry up，or/otherwise you will be late for class. 快点儿，否则你们上课就迟到了。 考点二　状语从句 (一)时间状语从句 1．when，while和as的用法 连词 含义及用法 when “当……时候”，可与延续性动词或短暂性动词连用；从句动作可以发生在主句动作之前、之后或与主句动作同时发生 while “当……时候”，一般只可与延续性动词连用，从句动作与主句动作同时发生 as “一边……一边……”，常与延续性动词连用，从句动作与主句动作同时或几乎同时发生 When you apply for a job，you must present your credentials. 当你申请工作时，你必须递交你的有关证书。 Mary made coffee while her guests were finishing their meal. 客人们就要吃完的时候，玛丽去煮咖啡了。 As he grew older，he became less active. 随着他逐渐长大，他变得不那么活泼了。 [易错警示]　如果主句表示的是短暂性动作，而从句用延续性动词的进行时表示在一段时间内正在进行的动作时，when，while与as可互换使用。 When/While/As I was walking down the street，I came across an old friend. 我正沿着大街走时，碰巧遇到了我的一个老朋友。 2．before与since的用法 (1)before表示“在……之前；还未……