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1、英语语法词汇详解allow三个用 法allow动词1）允许、许可。观察以下例句，总结出allow的常用句式My parents allowed me to have a picnic in the park.Teachers don t allow eating in class.【搭配】allow sb. to do sth.允许某人做某事allow （doing） sth.允许（做）某事观察下列几个例句，归纳allow的其他用法。They don t allow us to park here.We are not allowed to park here.They don t allow
2、 smoking in the restaurant.Smoking are not allowed in the restaurant知识讲解be allowed被允许2 ） allow允许进入（或停留）【小试牛刀】You can t wear shoes inside this place. It,A. doesnz t allow B. isnz t allowedC. hasn t allowed D. wasn1 t allowed解析：选Ball【辨析2】both与allboth指两者都，all三者及以上与动词连用，放在be动词后，实意动词前。（助记点：实前be后）当代词讲，bot
3、h作主语，谓语动词用单数。例：Both are happy.all作主语，指人，谓语动词用复数、例:All are here.指物时，谓语动词用单数。All is right. both和all都可直接修饰名词。当出现人称代词宾格、限定词(the/these/those )要用 both of 或 all of.【小试牛刀】把下列几个句子译成英文。你们两个都对。我有三只铅笔。他们全都是红色的。Lily和Lucy都来自于英国。我们俩都想去。解析：You are both right. /Both of you are right.I have three pens. They are all r
4、ed. /All of them are red.Lily and Lucy both come from England.We both want to go. /All of us want to go.选择题Old Mr Black Lives happily with his three dogs.of them are part of his family.A. Both B. All C. None D. Neither解析：选B.all期形容词，全部的、所有的。代词，指三者及以上的人或物。【辨析1】all与wholewhole与all都表示全部，但用法有区别。1 .有时这两个词含
5、义大致相同，只是位置不同：all要放在冠词、指示找词、物主代词等之前，而whole应放在这些词之后。如:all the family/the whole family 全家.在复数名词前一般用all ,在单数可数名词前一般要用wholeo如：All the children enjoyed themsekes.所有的孩子都过得很快活。The whole building was burning.整座在楼都在燃烧。注：它们在意义上有差别：all指一个不剩（即全部）;whole指“一点不缺（即“整个3 .在不可数名词之前一般用all ,而不用whole（但偶尔有例外:the whole time/
6、all the time;his whole energy/all his energy 等），但在 物质名词前是绝对不能用whole的。如：误：the whole money 正：all the money 所有的钱误:the whole food 正:all the food 所有的食物误:the whole wine 正:all the wine 所有的;酉4 .在表地点的专有名词之前，一般用all而不用whole如：all China（全中国），但可说 the whole of China.5 .在时间名词（如day,week,month,year等）以及季节名词 （spring,summer,autumn,winter）之前,两者都可用。如:all（the） day/the whole day 整天all（the） spring/the whole spring 整个春天注：在表示时间的hour和century之前,一般只用whole,不用 all 如：I waited for her the（或 a）whole hour.我等了她整整一小时。