3、和have、has、had的区别:
(1)There be句型表示:在某地有某物(或人)
(2)在there be句型中,主语是单数,be动词用is;主语是复数,be动词用are;如有几件物品,be动词根据最近be动词的那个名词决定。
(3)there be句型的否定句在be动词后加not,一般疑问句把be动词调到句首。
(4)there be句型与have(has)的区别:there be表示在某地有某物(或人);have(has)表示某人拥有某物。
(5)some和any在there be句型中的运用:some用于肯定句,any用于否定句或疑问句。
(6)and和or在there be句型中的运用:and用于肯定句,or用于否定句或疑问句。
(7)针对数量提问的特殊疑问句的基本结构是:How many+名词复数+are there+介词短语?How much+不可数名词+is there+介词短语?
(8)针对主语提问的特殊疑问句的基本结构是:What’s+介词短语?
(9)There be结构一般用在句子的开头,而have等词只能用于某一个主语后面。
1.现在进行时
表示正在发生的事情或进行的动作,常与now,listen,look等词连用,结构是主语+be动词(am,is,are)+动词ing.
如:It is raining now.
外面正在下雨It is six o’clock now.现在6点了My parents are reading newspapers in the sitting room.我父母正在客厅看报纸Look!The children are having a running race now.看!孩子们正在赛跑问句将be动词移前,否定句在be动词后+not.
2.一般现在时表示经常反复发生的事情或动作,常与often,usually,sometimes,always,every day(week year…)on Sundays等词连用。结构是主语+动词原形;当主语为第三人称单数即he,she,it,Tom,my mother,the boy等词时,动词后加s或es.如:We have an English lesson every day.我们每天都要上英语课Do the boys run faster than the girls?Yes,they do.男孩比女孩跑的快吗?是的问句借助于do,does否定句借助于don’t,doesn’t,后面动词一定要还原。
3.一般过去时表示发生在过去的事情或存在的状态,常与just now;a moment ago;…ago;yesterday;last(week;month;year;Monday;weekend);this morning等词连用。结构是主语+be动词的过去式(was;were)或主语+动词的过去式。注意:be动词与动词过去式不可同时使用。如:My earphones were on the ground just now.我的耳机刚刚还在呢。Where were you last week?I was at a camp.你上个星期去哪了?我去野营了What did you do yesterday?I visited a farm你昨天去干嘛了?我去参观农场了。问句有be动词将be动词移前,没有be动词借助于did,后面动词还原;否定句有be动词在后面加not,没有借助于didn't后面动词还原。
4.一般将来时表示将要打算发生的事情或动作,常与tomorrow,next week(year;Tuesday…),this week(weekend;evening;afternoon;…)today等词连用。结构是主语+be(am,is,are)going to+动原或主语+will+动原。如:What are you going to do tomorrow?I am going to have a picnic.你明天要去干嘛?我要去野餐。The childre are going to have a sports meeting next week.孩子们下个星期将参加运动会。Tom will/is going to see a play with his father this evening.Tom今晚将和父母去看演出。问句将be动词或will移前;否定句在be动词或will后加not.
5.情态动词can;can’t;should;shouldn’t;must;may后一定加动词原形。如:The girl can’t swim,but he can skate.女孩不会游泳,但是会滑冰Don’t talk in class,you should listen to the teacher carefully.不要再课上说话,你应该认真听老师讲。
6.祈使句肯定祈使句以动词原形开头;否定祈使句以don’t加动词原形开头。如:Open the box for me,please.请为我打开盒子。Liu Tao!Please get up earlier tomorrow.刘涛,明天请早点起床!Don’t walk on the grass!不要在草地上走!Helen!Don’t climb the tree,please.海伦!不要爬树。
7.go的用法去干嘛用go+动词ing如:go swimming;go fishing;go skating;go camping;go running;go skiing;go rowing…
8.比较than前用比较级;as…as之间用原级。如:My mother is two years younger than my father.我妈比我爸年轻两岁。Liu Tao jumps as far as Ben.刘涛跳得和本一样远。
9.喜欢做某事用like+动词ing或like+to+动原。如:Su Yang likes growing flowers.苏阳喜欢种花。The children like to play with lanterns at Spring Festival.孩子们喜欢在春节去玩花灯。
10.想要做某事用would like+to+动原或want+to+动原。例:I’d like to visit the History Museum.=I want to visit the History Museum
11.some用于肯定句中,在否定句和问句中改为any,但当表示委婉语气时仍用如:Can I have some writing paper?Would you like some orange juice?
12.代词人称代词主格做主语用一般放在句首或动词前,主格分别是I you he she it we you they。宾格做宾语用,一般放在动词或介词后如:Open them for me.Let us…,join me等。宾格分别是me you him her it us you them。形容词性物主代词放在名词前,不能单独使用,分别是my your his her its our your their名词性物主代词相当于形物加名词,它只能单独使用后面不好加名词,分别是mine yours his hers its ours yours theirs。
13.介词介词后要么不加动词,加动词只能加动词ing形式如:be good at running;do well in jumping;
14.时间介词季节前,月份前用介词in如:in summer;in March具体的哪一天如星期几,几月几日用介词on如:on Saturday;on the second of April;on Wednesday morning在几点钟前用介词at如:at a quarter to four;只在上下午晚上用in如:in the morning/afternoon/evening;但在夜间用at night。另:季节,月份和星期前不好加the.
15.名词复数构成的方法有规则的有:(1)直接在名词后加s如orange—oranges;photo—photos;(2)以x,s,sh,ch结尾的加es如:box—boxes;glass—glasses;waitress—waitresses;watch—watches;peach--peaches(3)以辅音字母加y结尾的改y为i加es如:study—studies;library—libraries;hobby—hobbies;family—families;(4)以f,fe结尾的改f,fe为v+es如:knife—knives;thief—thieves(注:以o结尾的我们学过的只有mango加es,mango—mangoes其余加s,)不规则的有:man—men;woman—women;people—people;child—children
16.动词第三人称单数的构成(1)直接在动词后加s如:run—runs;dance—dances(2)以s,sh,ch,o结尾的加es如:do—does;go—goes;wash—washes;catch—catches(3)以辅音字母加y结尾的改y为i加es如:study—studies;carry—carries;
17.现在分词的构成
(1)直接在动词后加ing
如:sing—singing;ski—skiing;
(2)双写词尾加ing
如:swim—swimming;jog—jogging;run—running;
(3)以不发音的e结尾的去e加ing
如:ride—riding;dance—dancing;make—making;
18.规则动词过去式的构成(1)直接在动词后加ed如:clean—cleaned;milk—milked;play—played;
(2)以e结尾的直接加d
如:dance—danced;taste—tasted;
(3)以辅音字母加y结尾的改y为i加ed