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Unit 8 Save Our World. 语法写作课件

日期:2024-05-06 科目:英语 类型:初中课件 查看:18次 大小:945358Byte 来源:二一课件通
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Unit,Save,Our,World.,语法,写作
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课件24张PPT。语法点集中攻坚单元要点大本营单元一法练写作Unit 8 Save Our World“it”的用法语法讲堂考点 1it作实词考向一可以指除人以外的一切事物,相当于汉语中的“它”,有时也指前面提到的整件事情。 eg: I had a good pen,but I lost it yesterday. 我有一支好钢笔,但昨天我丢了它。辨析:that, one与it典例—What kind of house would you like? —I'd like _____with a garden in front of _____.(鞍山) A.it; one     B.one; one C.one; it      D.it; it 【点拨】考查代词的用法。one强调个体,表示同一类事物。it表示特指,即上文提到的事物。C考向二在某些情况下,也可指人,常指性别不详的人,特指婴幼儿。 eg:—Who is it?这是谁? —It's me.是我。 The baby smiled when it saw its mother. 这个婴儿看到它妈妈时笑了。考向三在回答What's this/that?的答语中,用it代替this或that。 —What's this/ that?这/那是什么? —It's a computer.是台电脑。考向四常指时间、天气、距离、数学等,常不翻译出来。 eg:It's tea time. Mrs Turner goes into the kitchen. 到了喝茶的时间了,特纳夫人走进了厨房。 It is winter now. It is ten degrees below zero. 现在是冬天。气温是零下10度。 It is only half an hour's walk to the tall tower. 走路只要半小时的路程就可以到达高塔了。 It will be rainy tomorrow. 明天将会下雨。典例—What's your QQ number? —_____ is 355994127. (南宁) A.I B.He C.It D.She 【点拨】it指代QQ号码。C作形式主语或形式宾语考点 2考向一(1)英语中不定式、动名词、主语从句等复杂成分在作主语时主语往往显得很长,使整个句子看上去头重脚轻,这时就借助“it”来作形式上的主语,而把真正的主语移到句子后边去,使全句看上去平衡一些。 “it”没有实际的意义。 eg: It is fun for her to study, but it is difficult for her to study and work at the same time. 对于她来说学习是有趣的,可是边工作边学习对她来说是困难的。(2)it用作形式主语的重要句型。 ①It+be+adj.+for(of) sb. to do sth. 某人做某事…… eg:It is hard for him to make up his mind. 对他来说下决心很难。 It was foolish of her to say that. 她说那样的话,太愚蠢了。 此句型中的介词of和for的区别是:用of时,形容词指某人的性格、特点等。如:nice,kind,silly,wise,clever,careless,rude,polite,brave等。用for时,形容词指事物的性质、特征等。如:difficult,easy,impossible,important,dangerous,fun等。②It+ be+ n.+ to do sth.做某事是…… eg:It is our duty to protect the environment. 保护环境是我们的责任。 ③It takes/took sb.+时间段+to do sth.某人做某事花了多少时间。 eg: It took me two hours to do my homework. 我做家庭作业花了两个小时。典例It is great _____ us to get so many favourite books on International Children's Book Day.(连云港) A.to B.with C.of D.for 【点拨】考查It is +形容词+for sb. to do sth.,做某事对某人来说怎么样。用for时,形容词指事物的性质和特征。D考向二【重点】 作形式宾语 当不定式、动名词、从句等复杂成分作宾语且后面跟有宾语补足语时,通常会在宾语补足语前使用it作形式宾语,而将真正的宾语移至句末。其基本结构为“动词+it+宾语补足语+不定式(动名词或从句)”,常用于这种结构的词有:think,find,make,consider,feel,believe等。 eg: I find it difficult to do the job well. 我发现做好这项工作很难。 I think it best that you should stay here. 我认为 ... ...

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