基本语法BE动词与实意动词句型变化疑问词选择情态动词总结4100字.docx

    基本语法BE动词与实意动词句型变化疑问词选择情态动词总结4100字    前言一． 实意动词与BE动词（以一般时为例）英语当中的第一类动词，实意动词，即由实际意思的动词，如run, say, stay,go,want，第二类动词为BE动词，除了表示“是”的时候有实际意思以外，其他情况都没意思一个句子里面如果没有实意动词，就必须加BE动词，单数不可数都加is, 复数加are, I接am，you 和are（was是am,is的过去式, were是are的过去式）. 如：1. where do you come from（come为实意动词）= where are you from （are此处没意思）2. I come from CQ（come 为实意动词）=I am from CQ （am此处没意思）3. you look fat（look为实意动词）= you are fat.（are 此处没意思）4. I am a teacher （am此处有实际意思，表示“是”）5. Is this your umbrella? (is 此处有实际意思，表示“是”)注意：一般情况下，如果有了实意动词就不需要be动词了，而且BE动词绝对不能跟动词原形一起使用。

二． 句型变化（以一般时为例）肯定句变为否定句，一般疑问句，特殊疑问句，最重要的也是要找到是否有以下的单词，be动词，助动词（can、will、would、shall、could、may、might、must）（助动词后必须接动词原形，详见前言第四点助动词介绍），和在完成式当中的have、has（had很少用）.1. 如果是be动词a) 变否定：直接be后加noti. I am a teacher——I’m not a teacherb) 变一般疑问句：直接把be动词提前i. She is my uncle——Is she my unclec) 变特殊疑问句:先找到特殊疑问词放在句首，再把be动词提前疑问词一般情况下是what,how,when,who,which,where,why，但也有很多情况的疑问词是这样的，如：what color, what kind of…,what make…,how old(问年龄)，how long(问时间，长短), how far（问距离）,how often（问频率），which one, which people等具体的关于特殊疑问词的介绍在稍后前言第三点）i. who is he? （对人your doctor提问，疑问词是who放在句首,再把be动词is提前）ii. How old are you?(对年龄26 years old提问，疑问词是how old放在句首，再把be动词am提前，只不过提问的时候把I变成了you,所以am 就变成了are)2. 如果是情态动词a) 变否定：直接在情态动词后加noti. I can speak English ——I can’t speak Englishii. She will go to HK——She won’t go to HKb) 变一般疑问句：直接把情态动词提前i. I can speak English——Can you speak English?ii. She will go to HK——Will she go to HK?c) 变特殊疑问词：先找到特殊疑问词放在句首，再把情态动词提前。

i.ii. I can speak what language can you speak (对语言的提问是what language,再把情态动词can提前) who will she go to HK with(对her brother人提问疑问词用who,然后再把情态动词will 提前)3. 如果是在完成式中（以现在完成式为例）a) 变否定：直接在have,has（第三人称单数）后加not.i. I have finished the homework——I haven’t finished the homeworkii. She has arrived——She hasn’t arrivedb) 变一般疑问句：直接把have,has（第三人称单数）提前i. I have finished the homework——Have you finished the homework.ii. She has arrived——Has she arrived.c) 变特殊疑问句：先找到特殊疑问词放在句首，再把have,has（第三人称单数）提前i. I have finished the homework how long have yourfinished the homework? (对于多长时间提问,疑问词用how long,放在句首，再把have 提前)ii. ——Who has arrived? (对人she提问，疑问词是who,放在句首，再把has提前，只不过这儿has本来就在最前)4. 如果是又有情态动词，又有BE动词，用情态动词进行变化;如果是完成式中,因为有have/has,如果再遇到be动词（这里应该是been，详细见时态完成时）,同样也是用have,has进行变化a) i. She can’t be a teacherii. Can she be a teacheriii. What can she be?b) 此处又有情态动词will，又有BE动词)i. You won’t be betterii. Will you be betteriii. Who will be better?c) i. I haven’t been to HKii. Have you been to HKiii. Where have you been to?三． 疑问词疑问词最基本的是what,where,when,who,why,how，如：1. what’s your name?2. where are you?3. when will you be here?4. who are you?5. why are you here?6. how are you?只不过在具体到一些特殊情况的时候，在这些基本的疑问词后还会再加名词，这种情况常用的如下：1. what time 问时间a) what time is it now ?b) what time can you arrive ?2. what color 问颜色a) what color is this?3. what language问语言a) what language can you speak?4. what kind of …问类型a) what kind of food is this?5. what nationality 问国籍a) what nationality are you?6. what make 问牌子a) what make is your car?7. how long问时间，距离，物品等长短，长短a) how long have you arrived?b) how long is it?8. how far 问远近a) how far is it？9. how old 问年龄a) how old are you?10. how tall 问高低a) how tall is your classmate?11. how heavya) how heavy is the box?12. how often 问频率a) how often will you study English13. which….问选择a) which computer is yours?b) Which one will be yours?四．情态动词（后必须接动词原形）1. 情态动词后如果是实意动词，直接就是这个动词的原形a) I can play pianob) She won’t become a teacher2. 情态动词后如果是BE动词，那么直接就是bea) I can become a teacher=I can be a teacher (一般情况这儿用be多 )b) She will be better (一般这儿我们也不说“turn”)3. 情态动词有些固定搭配虽然可以用can，但是为了礼貌，一般都用这些比较固定的搭配，如：a) May I…i. May I have your nameii. May I have your phone numberb) Could you…i. Could you help meii. Could you give me some waterc) Shall we…i. Shall we open the window?ii. Shall we have a rest?d) Would you like …i. What would you like to drinkii. I’d like to have some beef for dinner.4.一．一般现在时，即表示1）现在的状态 或2）经常性习惯性的动作。

如1. I am an air hostess. (表现在的状态)2. I look great on this dress. （表现在的状态）3. I usually go to school by bus. （表经常性动作）4. How often do you study English? （表经常性动作另外在一般现在时的情况如果是出现用实意动词的话，一定要注意第三人称单数的变化＋   -全文完-。