【句型讲解】 北师大第10单元L3 句型讲解北师大高中必修4

【句型讲解】 北师大第10单元L3 句型讲解9. Tom found it easy to master a foreign language.分析：在find , think , make, consider ,feel 等动词之后，接不定式作宾语时，如果不定式带有自己的补语，我们常用it 代表不定式，而将不定式放到补语之后，如： We think it wrong not to tell him. 我们觉得没有告诉她是不对的。【高考链接】 The chairman thought_ necessary to invite Professor Smith to speak at the meeting.A. that Bit C. this Dhim解析：答案为B。此题考查固定句式，it 在句子中作形式宾语。to invite Professor Smith to speak at the meeting 作真正的宾语。 【跟踪再练】 我发现和他在一起工作很愉快。 我想不值得费这么大的事了。 Key: I fond it quite pleasant to work with him. I dont think it worthwhile taking such trouble. 10. It is no bigger than a credit card!分析：句中用到了no more than句型。关于no more than/not more than举例区别如下：比较：John is not better than Tom. John is no better than Tom. 前一例表示“约翰不比汤姆好”，属于普通比较结构；后一例用了no情况就不同了，no better than相当于as bad as，含义是两人一样坏。这里，“no十形容词或副词比较级十than所表示的可以说是该形容词或副词的相反含义。又例如:no richer than = as poor asno bigger thanas small asno later than as early as同样地：I have not taken more than six courses this semester. I have taken no more than six courses this semester.后一例表示只选了六科，表示少的意思。上述结构与表示前后都否定的no morethan(notany more than)有所不同。例如：A whale is no more a fish than a horse is此句的含义是鲸和马同样不是鱼，即鲸不是鱼，如同马不是鱼一样。在某些结构中单独使用more than(其后为分句时有情态助动词cancould )也能表示否定概念。例如：That is more than I can say.含义是“简直不” 。又例如：My trip to Beijing is more than sightseeing. 含义是不仅仅是游览观光而已。诸如此类的结构有的是通常的比较，有的形式上象是比较，实质上并非正的比较，在后一种慎况下，往往可以与除形容词或副词以外的词语连用。11. , and the rest of their time thinking about all the things they would do once they got rich.分析：句中once用作连词，意思是“一旦,一经.便”。如：Once you get into a bad habit, youll find it hard to get out of it.一旦染上坏习惯,想改掉就难了。once的用法：(1) 用作副词，意为“一次”、“从前”、“曾经”。Computers are much cheaper nowadays than they once were. 现在电脑比过去便宜多了。He once knew her, but they are no longer friends.他以前认识她,但他们已经不是朋友了。(2) 用作连词，意为“一旦”，引导条件状语从句。Once printed, this dictionary will be very popular! 一旦出版，这本词典将会非常畅销！Once you begin you must continue.你一旦开始, 便不可停下来。(3) once的常见短语：all at once 突然, 忽然 at once 马上，立刻；同时once (and) for all 最后一次once upon a time 从前once more再一次once in a while 有时, 间或, 偶而【高考链接】_ you lose confidence, you can never expect to do your work well.A. Twice B. Before C. once D. unless解析：答案为C。句意：一旦失去信心，你别想把工作搞好。Once一旦就。12. For a start, it can buy you a precious tree, which will make the land fertile.分析：句中which引导的是非限制性定语从句，which指代a precious tree。非限制性定语从句在句中起补充说明作用，其学习注意如下几点：1) that不能用来引导非限制性定语从句2) 除which外，还可用when; where; whose; whom等引导非限制性定语从句，且各自的用法及差异与它们用在限制性定语从句时相同。3)“介词关系代词”也可以引导非限制性定语从句。关系代词只可用whom或 which, 不可用who或 that 。4) 在非限制性定语从句中作宾语的关系代词不能省略。5) 非限制性定语从句的关系代词which，既可以指代前面的先行词，也可以指代前面整句的含义。【高考链接】In the office I never seem to have time untilafter 5:30 pm, _ many people have gone home A. whose time B. that C. on which D. by whichtime 解析：答案为D。先行词5:30pm与time之间是一种同位关系，可用which来作定语替代。从句中的完成状态，常与by短语连用，故选D。He paid the boy 10 yuan for washing ten windows, most of _ hadnt been cleaned for at least a tear. A. these B. those C. that D. which解析：答案为D。 “most of which”引导非限制性定语从句，which指代ten windo