現(xiàn)在進(jìn)行時(shí)教學(xué)課件
現(xiàn)在進(jìn)行時(shí)的基本用法,表示現(xiàn)在 正在發(fā)生的事情。下面是小編為大家收集整理的現(xiàn)在,歡迎閱讀。進(jìn)行時(shí)教學(xué)課件
現(xiàn)在進(jìn)行時(shí)教學(xué)課件
一、概念
現(xiàn)在進(jìn)行時(shí)表說(shuō)話時(shí)正在進(jìn)行或發(fā)生的動(dòng)作,也可表示當(dāng)前一段時(shí)間內(nèi)的活動(dòng)或現(xiàn)階段正在進(jìn)行的動(dòng)作.
結(jié)構(gòu):助動(dòng)詞 be ( am / is / are ) +現(xiàn)在分詞.
二、 現(xiàn)在分詞的.構(gòu)成:
1.大多數(shù)動(dòng)詞后可在動(dòng)詞后直接加-ing.
Eg: carry-carrying,catch-catching,drink-drinking, enjoy-enjoying hurry-hurrying ,do-doing , read-reading , think-thinking
2. 如果動(dòng)詞以-e結(jié)尾,則去掉-e,再加-ing,
如come-coming , have-having , make-making,ride-riding,write-writing,take-taking,use-using.
3. 如果動(dòng)詞只有一個(gè)元音字母,而其后跟有一個(gè)輔音字母時(shí),將此輔音字母雙寫,再加-ing
如: hit-hitting,let-letting, put-putting,run-running,sit-sitting.
4. 如果動(dòng)詞有兩個(gè)音節(jié),且重音在第二個(gè)音節(jié)上,則末尾的輔音字母須雙寫,再加-ing,
如: for’get-forgetting,pre’fer-preferring,up’set-upsetting.試比較 ’benefit/benfiting, ’differ/differing,’profit/profiting,這些詞的重音在第一個(gè)音節(jié)上,因此其末尾的輔音字母不雙寫.
5. 以 -ic 結(jié)尾的動(dòng)詞,應(yīng)先把 -ic 變?yōu)?-ick,再加 -ing,eg: panic/panicking,picnic/picnicking,但 lie/lying ,die/dying,tie/tying是特殊變化要記住.
三、句型結(jié)構(gòu):
1.現(xiàn)在進(jìn)行時(shí)的肯定形式、否定形式、疑問(wèn)形式及其回答,所有變化都體現(xiàn)在助動(dòng)詞 be ( is / am / are ) 上.
1)現(xiàn)在進(jìn)行時(shí)的肯定形式:主語(yǔ)+be(am/ is/are)+doing+其他成分
I am singing . They are writing .
2)現(xiàn)在進(jìn)行時(shí)的否定形式:主語(yǔ)+be(am/ is/are)+not +doing+其他成分
I am not singing . They aren’t writing .
3)一般疑問(wèn)句及回答:be(am/ is/are)+ 主語(yǔ)+doing+其他成分
Am I singing ? Yes ,you are . / No ,you aren’t .
Are they writing ? Yes ,they are . / No ,they aren’t .
4)特殊疑問(wèn)句及回答:特殊疑問(wèn)詞+be(am/ is/are)+主語(yǔ)+doing+其他成分
What are you doing ? We are playing (要求就提問(wèn)內(nèi)容具體回答).
2. 縮寫形式如下:
I am---I’m You are---You’re He is---He’s She is---She’s
It is---It’s We are---We’re They are---They’re
3.說(shuō)明: 不是所有動(dòng)詞都能用現(xiàn)在進(jìn)行時(shí)態(tài)的,如:see、like、want、know 等動(dòng)詞往往都不用進(jìn)行時(shí)態(tài).
四.用法:
1.表示現(xiàn)在( 指說(shuō)話人說(shuō)話時(shí)) 正在發(fā)生的事情.往往與 now,at the moment,just 等副詞連用,以示強(qiáng)調(diào).
We are waiting for you? What are you doing? Some one’s knocking at the door.
2.正在進(jìn)行著的動(dòng)作可視為未完成的動(dòng)作: He’s talking to his friends in the classroom.
可用 still 一詞強(qiáng)調(diào)動(dòng)作的持續(xù)性 He’s still talking to his friends in the classroom.
3. 表示長(zhǎng)期的或重復(fù)性的動(dòng)作,說(shuō)話時(shí)動(dòng)作未必正在進(jìn)行.
Mr. Black is writing another article. Don’t take that book away. Your father’s using it.
She is learning piano under Mr. Black.
4.現(xiàn)在進(jìn)行時(shí)可用來(lái)表示不會(huì)長(zhǎng)期發(fā)生的動(dòng)作或情況,或被認(rèn)為在短期內(nèi)正在進(jìn)行的動(dòng)作或存在的情況:
What’s your brother doing these days? He’s studying English at Oxford University.
5.現(xiàn)在進(jìn)行時(shí)也可以用來(lái)表示當(dāng)前的動(dòng)向:
People are becoming more and more beautiful these days.
6. 表示漸變的動(dòng)詞有:become,turn,get,grow,run,go,begin等.
The leaves are turning brow. It’s getting colder and colder.
7.與always,constantly,forever 等詞連用,表反復(fù)發(fā)生的動(dòng)作或持續(xù)存在的狀態(tài),往往帶有說(shuō)話人的主觀色彩.
You are always changing your mind.
8. 現(xiàn)在進(jìn)行時(shí)(以及 be going to)可以表示為將來(lái)安排好的活動(dòng)和事件 We’re spending next winter in China. 用arrive,come,go,leave 等動(dòng)詞的現(xiàn)在進(jìn)行時(shí)描寫行 程安排,也通常有“將到達(dá)”和“將離去”的意思: He’s arriving tomorrow morning.
9.當(dāng)現(xiàn)在進(jìn)行時(shí)表示某事發(fā)生的次數(shù)過(guò)多時(shí),則有時(shí)含有抱怨,討厭,贊揚(yáng)等的意思:
He is always singing at night,and we can’t fall asleep late at night
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