内容正文:
备战2021年高考英语——时态之现在进行时(三)
现在进行时表示:
1. 说话瞬间正在进行或发生的动作/当前一段时间内的活动或现阶段正在进行的动作;
2. 标志性时间状语/标志性词 now(现在)/at this time(在这时)/at this moment(现在)/listen/look;
3. 现在分词构成
直接加ing:go→going、ask →asking、look→looking
以不发音的字母e结尾,去e加ing:have →having 、take→taking、make→making、write→writing
末尾为一元加一辅,双写辅音字母加ing:get→getting、sit→sitting、put→putting、run→running 、swim→swimming、begin→beginning、shop→shopping
以ie结尾的动词,改ie为y加ing,lie→lying,die→dying,tie→tying
4. 现在进行时构成
肯定式:be+v-ing She is singing in the next room.
否定式:be+not+v-ing The students aren’t cleaning the room.
一般问句:be动词提前。 肯定答语Yes,主语+be,否定答语No,主语+be not。 Are you playing the computer game? Yes, I am. /No, I am not.
特殊问句:对谓语动词进行提问的:What+be +主语+doing+其他? What is the old man doing under the tree?
对其他成份进行提问的,疑问词+一般疑问句? Where is the boy swimming? Who is she waiting for?
5、现在进行时变疑问句
一般疑问句句型:Am/Is/Are + 主语 + 现在分词...?
回答方式:Yes,主语 + am/is/are.
No,主语 + am/is/are + not.
现在进行时的疑问句是将助动词am/is/are置于主语之前(大写am/is/are的第一个字母),在句尾加问号;这种语序是倒装语序
具体的用法结合句子来理解,先来看例句;
1.Are you leaving already?
你这么早就要走了吗?
2.Is it raining now?
—Yes,it is./No,it isn't.
现在下雨吗?
——是的,在下雨。/不,不下了。
3.Are they helping the old lady?
—Yes,they are./No,they aren't.
他们在帮助这位老妇人吗?
——是的。/不,没帮助她。
6、现在进行时变否定句
主语 + am/is/are + not + 现在分词...
现在进行时的否定句是在助动词am/is/are后加not:
具体的用法结合句子来理解,先来看例句;
1.I'm not doing anything right now.
我现在没做什么事情。
2.She is not dancing,but doing exercise.
她不是在跳舞,而是在锻炼。
巩固练习:
单项选择
( )1.我在照看孩子.
(A)I am looking after the baby. (B)I'm look aftering the baby.
(C)I look am aftering the baby. (D)I looking after the baby.
( )2._____friend's making______a kite.
(A)I,me (B) My,my (C)My,me (D)His,his
( )3.Is the woman wearing______ yellow your teacher?
(A)in (B)putting on (C)wearing (D)having
( )4.Look!The twins_____their mother do the housework.
(A)are wanting (B)help (C)are helping (D)are looking
( )5._____are the birds doing? They are singing in a tree.
(A)Who (B)What (C)How (D)Where
( )6.Is she____something?
(A)eat (B)eating (C)eatting (D)eats