四種一般時態(tài).ppt

1、四種一般時態(tài),綱領(lǐng)提示:動詞是識別英文是由三種基本句型構(gòu)成的主要方法。因此要想掌握好時態(tài)，主要有以下三點(diǎn)： 1.熟記每種動詞變化的構(gòu)成。 2.明白每種變化到底意味著什么？它們與中文的動詞有什么區(qū)別？ 3.最關(guān)鍵的是，要了解什么是時態(tài)，其實時態(tài)的本質(zhì)是一半時，一半態(tài)。 當(dāng)你能夠回答并掌握以上三點(diǎn)時，你的英語就會產(chǎn)生一個極大的飛躍。,一般時態(tài)所表示的時間概念,過去,現(xiàn)在,將來,過去將來,（即相對于過去的將來）,一般時態(tài)的構(gòu)成,時態(tài),句型,is,am,are,do,does,there is(are),was,were,did,there was (were),will be,will do,the

2、re will be,would be,would do,there would be,一般現(xiàn)在時態(tài)的基本用法,1.表示客觀事實或普遍真理 （1）The earth moves around the sun. (2) Practice makes perfect. 2.表示目前的情況及反復(fù)發(fā)生的動作，或習(xí)慣性的動作，常與頻率副詞連用。如sometimes, often, always, usually, seldom,這種副詞常放在主語和動詞之間。 (1)She seldom gets up before 6in the morning. (2)They oten go for an outi

3、ng on Sunday.,否定式及疑問句的構(gòu)成,They dont often go for an outing on Sunday. Do they often go for an outing on Sunday?,一般過去時態(tài)的構(gòu)成,一般過去時態(tài)表示過去發(fā)生的動作及狀態(tài) （1）I went to see a doctor yesterday. (2) He was a pilot five years ago. 否定式及疑問句的構(gòu)成 I didnt go to see a doctor yesterday. Did you see a doctor yesterday?,一般將來時態(tài)的

4、基本用法,在英語中，表示將來的動作或狀態(tài)時，有多種形式。這里介紹常見的四種。,1.will, shall Shall用于第一人稱，will用于其他人稱。但在現(xiàn)代英語中，尤其在美國，在表示將來的時候，所有人稱都用will,而shall只用于一些習(xí)慣用法。,(1)她將在星期五到倫敦。,She will arrive in London on Friday.,(2)我將永遠(yuǎn)不會忘記你。,I will never forget you forever.,否定式及疑問句的構(gòu)成（省略）,2.be going to do(be)這種形式口語中用得最多，常常含有“打算”的含義。,(1)我打算明天早上五點(diǎn)起床。

5、,I am going to get up at five oclock tomorrow morning.,(2)今天晚上我打算在家吃晚飯。,Im going to have dinner at home this evening.,否定式及疑問句的構(gòu)成（省略）,3.be(is, am.are) to +動詞原形 這種形式含有“計劃”或“安排好了”的意思，是正式用語。,瑪麗和我的 兄弟計劃明年結(jié)婚。,Mary and my brother are to be married next year.,4.be(is,am,are) about to+動詞原形指馬上就要發(fā)生的動作。,看！飛機(jī)馬上就

6、要起飛了。,Look! The plane is about to take off.,一般過去將來時態(tài)的基本用法 一般過去將來時態(tài)的形式有多種，常見的有四種，參照一般將來時態(tài)。,(1) I thought he would take the chance.(相對于 thought 這個過去時態(tài)的將來）,(2)I knew he would be a good teacher. .(相對于knew 這個過去時態(tài)的將來）,(3)Last evening he said he would go to Americad. .(相對于昨天晚上的將來）,注：一般過去將來時態(tài)在使用時通常會給出一個過去的時

7、間點(diǎn),(4)Yesterday you said you were going to take me out for swim.,Practice:把下列句子變成一般疑問句，再就劃線部分提問。,1.John taught in a middle school. 2.Tom studies Chinese. 3.The meeting will begin at two oclock. 4.She was happy because she passed the exam. 5.They were neighbors three years ago. 6.He can finish the jo

8、b in two weeks. 7.We sold the cotton by weight. 8.We went to the cinema twice a month.,用所給的動詞時態(tài)填空。,Last Sunday the minister（神父）_ (call) the children to the front of the church while he _ (tell) them a story. Once he _(bring) a telephone to better _ (illustrate) （說明）the idea of prayer（禱告）. “You _ (ta

9、lk) to peaple on the telephone and _(not see) them on the other end of the line, right?” he_ (begin). The children _ (nod) yes.”Well,talking to God _ (be) like talking on the phone . He _ (be) on the other end, but you _ (can not see)him. He _ (listen), though.” Just then a little boy _(pipe up) （尖叫