关于非谓语动词的语法哪位高手能给我讲讲非谓语动词在句首时该怎么用?比如:____among high trees,the house can't easily be seen.A.Hidden B.Hid C.Hide D.Hiding类似于这种题,被动式,主动式的完成时态和一般

关于非谓语动词的语法哪位高手能给我讲讲非谓语动词在句首时该怎么用?比如:____among high trees,the house can't easily be seen.A.Hidden B.Hid C.Hide D.Hiding类似于这种题,被动式,主动式的完成时态和一般
关于非谓语动词的语法
哪位高手能给我讲讲非谓语动词在句首时该怎么用?比如:____among high trees,the house can't easily be seen.A.Hidden B.Hid C.Hide D.Hiding类似于这种题,被动式,主动式的完成时态和一般时态都有什么类型...

关于非谓语动词的语法哪位高手能给我讲讲非谓语动词在句首时该怎么用?比如:____among high trees,the house can't easily be seen.A.Hidden B.Hid C.Hide D.Hiding类似于这种题,被动式,主动式的完成时态和一般
A,Hidden 被动 ,这里是过去分词的用法 房子被高树遮掩, 动词及其 非谓语动词 形式一直是各类考试中的热点更是我们在日常教学中的难点 尤其是置于 句首时该 用 何种形式更让学生头疼.其实只要我们掌握了它们的使 用 规律要想做好这类题也不是难事.本文要讨论一下动词及其 非谓语动词 置于 句首时该 如何判别其正确形式. 一动词原形 动词原形置于句首毫无疑问应该是祈使句.祈使句的考查形式多是“句子连词句子” 最常见的连词有and or otherwise even though 等.所以判别的时候先看一下后边是否有一个“连词句子”的形式如果有则句首的空格一定要填动词原形.连词前可以有逗号也可以没有. 例1 --English has a large vocabulary hasn’t it --Yes. __ more words and expressions and you’ll find it easier to read and communicate.04上海高考-44 A. Know B. Knowing C. To know D. Known 答案选A. 因为后边有一个连词and 其后是一个完整的句子前半部分中没有主语则一定是祈使句. 一 动词不定式 动词不定式置于句首有两种功能一种是做主语另一种是做目的状语. 一 动词不定式做主语 通常有两种情形: 一种是不定式直接放 在句首 这种形式较少另一种是 用 it做形式主语把不定式置于句末达到平衡句子的目的. eg. To see is to believe. It’s nice of you to help me with my English. 二 不定式置于句首做目的状语是考查的重点 其后通常有逗号与主句隔开相当于in order to. 例2 ____ this cake you’ll need 2 eggs 175g sugar and 175g flour. A. Having made B. Make C. To make D. Making 06 广东高考-30 答案选C. To make 表目的相当于In order to make. 例3 –Can the project be finished as planned --Sure __ it completed in time we’ll work two more hours a day.05 福建高考-29 A. having got B. to get C. getting D. get 答案选B. to get表目的 相当于In order to get. 三. V-ing 形式置于句首 V-ing 既可以是动名词也可以是现在分词. 一 动名词置于句首做主语常表示概括性的或一般性的行为. 例4 ___ to sunlight for too much time will do harm to one’s skin.02 上海高考-38 A. Exposed B. Having exposed C. Being exposed D. After being exposed 答案选C. Being exposed to sunlight for too much time 在句中做主语. 需要注意的是 动名词做主语和表语应遵循对称原则即: 主语 用 动名词时 表语也 用 动名词. 例如 Seeing is believing. 二 现在分词置于句首做状语表明分词的逻辑主语与主句的逻辑主语一致其否定形式是not doing. 如果分词所表达的动作明显先于主句谓语动词的动作则 用 其完成形式having done 否定形式是not having done. 例5 My cousin came to see me from the country ___ me a full basket of fresh fruits.06安徽高考-21 A. brought B. bringing C. to bring D. had brought 答案选B. bringing在句中作伴随情况状语其逻辑主语就是句子的主语my cousin. 现在分词视情况有时其前面可以加上when while after before if though whether unless 等连词 这时相当于 “连词主语主句主语或it be v-ing” 形式分句作状语时的省略. 例6 When __ different cultures we often pay attention only to the differences without noticing the many similarities. o6浙江高考-5 A. compared B. being compared C. comparing D. having compared 答案选C. 分词短语相当于状语从句 when we are comparing different cultures. 有些经常 用 于句首的-ing 形式短语已经转换成介词 主要有 according to 根据 judging from 从……判断 talking of 谈到 taking all things into consideration 全盘考虑 setting aside 除开等. 另外还有一种常见的 “ 副词speaking”结构置于句首做整个句子的状语. Judging from her accent she must be an American. Taking all things into consideration I think he is a very honest man. Frankly speaking his article still needs more revising. 四. 过去分词置于句首 过去分词置于句首做状语 通常表示被动或完成 说明谓语发生的背景或情况. 例7. ___ automatically the e-mail will be received by all the club members.06 上海高考-40 A. Mailed out B. Mailing out C. To be mailed out D. Having mailed out 答案选A. 分词短语作状语 相当于一个假设条件状语从句If it is mailed automatically e-mail 与mail out 是被动关系. 例8. __ for the breakdown of the school computer network Alice was in low spirits.06 福建高考-33 A. Blaming B. Blamed C. To blame D. To be blamed 答案选B. 非谓语动词 形式作原因状语主语是blame所表达动作的承受者 因而 用 过去分词blamed. 过去分词置于句首还有一种比较特殊的结构 即“be 过去分词 介词” 结构表示状态的短语变化而来 也就是 “be 过去分词 介词” 短语置于句首表示状态时 可以直接省略掉be动词. 例9. __ with so much trouble we failed to complete the task on time. 06 四川高 考-33 A. Faced B. Face C. Facing D. To face 答案选A. 可以将该分词结构看作是be faced with 短语置于句首作原因状语的省略. 同现在分词作状语时前面可以加when while though if 等连词的情况一样过去分词前也常加一些连词. 例10. When first __ to the market these products enjoyed great success. 04 四川高考-22 A. introducing B. introduced C. introduce D. being introduced 答案选B. 非谓语动词 短语相当于when these products were first introduced to the market作状语的省略. 五. 独立主格结构 英语中最常见的独立主格结构就是 “名词代词 现在或过去分词位于句首做状语在这种结构中名词或代词是分词形式的逻辑主语在意义上可以表示时间条件原因伴随状况等现在分词表主动过去分词表被动 Weather permitting we will go picnic tomorrow. The question settled the meeting was over. 动词及其 非谓语动词 形式的 用 法看似复杂实际上我们只要分析好句子成分及该 动词在句 中的角色就比较容易把握好适当的形式了 自己好好看看,多做题就不难的.