一般現(xiàn)在時現(xiàn)在進行時一般過去時講解

1、一般過去時態(tài)（1）基本用法1. 一般過去時通常用來表示過去發(fā)生的動作或存在的狀況。如：Where were you last week?上周你在哪兒？-I was at my uncle's home in the countryside.（上周）我在鄉(xiāng)下的叔叔家。2.有些情況，發(fā)生時間沒有明確標明，但實際上是過去發(fā)生的，應(yīng)用過去時態(tài)；另外，在談到已故去的人時，也多用過去時。如：He bought a cat, and now they are good friends.他買了一只貓，現(xiàn)在他們是好朋友了。Lu Xun was a great writer.魯迅是位偉大的作家。（2）時間

2、狀語與一般過去時連用的時間狀語有：yesterday （昨天），last night（昨晚），last week （上個星期），four days ago （四天前），in 2002 （在 2002 年），just now （剛才），the day before yesterday （前天） 等。如：He went to the park yesterday.她昨天去了花園。I was ten years old in 2001. 我 2001 年才 10 歲。（3）動詞的過去式在一般過去時態(tài)中會涉及到動詞的過去式，大家要掌握規(guī)則動詞的過去式的變化規(guī)則。其基本的變化規(guī)則如下：一般情況下，在動詞

3、原形后直接 ed。如：play played , lookHooked 。以e結(jié)尾的動詞在其后加 d。如：like Hiked, use-used。與輔音字母加 y結(jié)尾的動詞，把 y變成i再加ed。如：carry - carried, marry - married 。以重讀閉音節(jié)（或r音節(jié)）結(jié)尾，末尾只有一個輔音字母時，雙寫這個輔音字母，再加ed。如：stop-stopped, prefer-preferred 。當然，剛才提到的都是規(guī)則動詞的構(gòu)成，我們還學(xué)過許多不規(guī)則動詞的過去式形式。如：am was,are - were, put - put, see - saw, eat - ate等

4、，這些可需要我們在課下牢牢記住喲！一般現(xiàn)在時態(tài)1、 定義與講解一般現(xiàn)在時：表示經(jīng)常性的事情，經(jīng)常性的動作或一般性事實。二、一般現(xiàn)在時的用法表示經(jīng)常性或習(xí)慣性的動作或存在的狀態(tài)；表示客觀事實或普遍真理；在時間、條件等狀語從句中，用現(xiàn)在時表示將來；在某些以here , there開頭的句子中，用一般現(xiàn)在時表示正在發(fā)生的動作三、時間狀語：often 經(jīng)常，usually 通常，always 總是，every 每個，sometimes 有時, at在幾點鐘只有在第三人稱單數(shù)用動詞的“三單變化”，其他用動詞的原形。動詞三單變化規(guī)則：1 .多數(shù)在動詞后+ s play plays like likes(1

5、)直接在動詞詞尾加-s.ask-asks work-works get-gets stay-stays(2)以字母s, x, ch, sh或。結(jié)尾的動詞，在詞尾直接加-es.watch-watches wish-wishes fix-fixes do-doesgo-goes pass-passes(3)以“輔音字母加-y”結(jié)尾的動詞，要先變 y為i再加-es.try-tries study-studies cry-cries fly-flies情況構(gòu)成方法例詞一般情況加-s清輔首后讀/s/濁swim-swims ;輔音和元音后讀help-helps ; like-likes/z/以輔音字母+o

6、結(jié)尾的詞加-es讀/z/goes,does以s,sh,ch,x等結(jié)尾的詞加-es讀/iz/watches,washes以輔音字母+y結(jié)尾的詞變y為i再加es讀/z/study-studies不規(guī)則變化have和be動詞變have 為has變be 為 am,is,arehave-has be-am,is,are2.不規(guī)則變化：be- is are havehas四、一般現(xiàn)在時的結(jié)構(gòu)般現(xiàn)在時的結(jié)構(gòu)自定式疑問式否定式否定疑問式I work.Do you work?I don't work.Don't you work?You work.Do you work?You don'

7、t work.Don't you work?We work.Do you work?We don't work.Don't you work?They work.Do they work?They don't work.Don't they work?He(She,It)Does he(she,it)He(She,It) doesn'tDoesn't he(she it)works.work?work.work?現(xiàn)在進行時態(tài)一、概念、現(xiàn)在進行時表說話時正在進行或發(fā)生的動作,也可表示當前一段時間內(nèi)的活動或現(xiàn)階段正在進行的動作結(jié)構(gòu)：助動詞be

8、 ( am / is / are ) +現(xiàn)在分詞.2、 現(xiàn)在分詞的構(gòu)成：1 . 大多數(shù)動詞后可在動詞后直接加-ingEg: carry-carrying,catch-catching,drink-drinking, enjoy-enjoying hurry-hurrying ,do-doing , r ead-reading , think-thinking2 .如果動詞以-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

9、果動詞只有一個元音字母,而其后跟有一個輔音字母時,將此輔音字母雙寫,再加-ing如： hit-hitting,let-letting, put-putting,run-running,sit-sitting 4. 如果動詞有兩個音節(jié),且重音在第二個音節(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音節(jié)上,因此其末尾的輔音字母不雙寫5. 以-ic

10、 結(jié)尾的動詞，應(yīng)先把 -ic 變?yōu)?-ick,再力口 -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)在進行時的肯定形式、否定形式、疑問形式及其回答, 所有變化都體現(xiàn)在助動詞be ( is/ am / are ) 上1) 現(xiàn)在進行時的肯定形式：主語+be(am/ is/are)+doing+ 其他成分I am singing . They are writing .2)現(xiàn)在進行時的否定形式：主語+be(am/ is/are)+not +doing+其

11、他成分I am not singing . They aren t writing .3) 一般疑問句及回答： be(am/ is/are)+主語+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）特殊疑問句及回答：特殊疑問詞+be（am/ is/are）+主語+doing+其他成分What are you doing ? We are playing （要求就提問內(nèi)容具體回答）.3.說明: 不是所有動詞都能用現(xiàn)在進行

12、時態(tài)的,如：see、 like、 want、 know 等動詞往往都不用進行時態(tài)四用法：1 . 表示現(xiàn)在（ 指說話人說話時） 正在發(fā)生的事情往往與now,at the moment,just 等副詞連用,以示強調(diào)We are waiting for you？What are you doing?Some one s knocking at the door 2 . 正在進行著的動作可視為未完成的動作。He s talking to his friends in the classroom.可用 still 一詞強調(diào)動作的持續(xù)性He s still talking to his friends

13、in the classroom.3 . 表示長期的或重復(fù)性的動作,說話時動作未必正在進行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)在進行時可用來表示不會長期發(fā)生的動作或情況,或被認為在短期內(nèi)正在進行的動作或存在的情況：What s your brother doing these days? He s studying English at Oxford University.

14、5 .現(xiàn)在進行時也可以用來表示當前的動向：People are becoming more and more beautiful these days.6 . 表示漸變的動詞有：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)生的動作或持續(xù)存在的狀態(tài),往往帶有說話人的主觀色彩You are always changing your mind.8 .現(xiàn)在進行時（以及be goin

15、g to）可以表示為將來安排好的活動和事件We' re spendingnext winter in China. 用 arrive,come,go,leave 等動詞的現(xiàn)在進行時描寫行程安排 ,也通常有“將到達”和“將離去”的意思：He s arriving tomorrow morning.9 .當現(xiàn)在進行時表示某事發(fā)生的次數(shù)過多時,則有時含有抱怨,討厭,贊揚等的意思：He is always singing at night,and we can ' t fall asleep late at night.一、寫出下列動詞的過去式：二、1.go 2. enjoy 3.te

16、ach 4.write 5. have三、6.is(am)7.are 8. want 9. talk 10.eat1 .carry 12. take 13. do 14. get 15.catch五、二、用所給動詞正確形式填空。六、1. My mother(buy) a lot of postcards yesterday.七、2. The twins(be) thirteen years old two years ago.3. I(get) up at half past six this morning.九、4. Jim(help) an old man carry his bag ju

17、st now.十、5. There(be) a King many years ago.H-> 6. Did you(have) a test yesterday?十二、7. I(come) to school at seven yesterday.十三、8. Once he(be) a shop assistant.9. The bat(like) sleeping in the day and(fly) out for food at night.10. -Where does Mr. Lin(live)? -He(live) in the USA.11. Mother always

18、(do) some washing after meals.12. The twins(wear) a pair of glasses every day.13. A plane always(fly) high in the sky.14. Grandpa usually(get) up early in the morning.15. The two writers(visit) each other once a year.16.1 (play) football every day.三、選擇填空。()1. My parents were having supper when I bac

19、k home.A. come B. came C. coming D. comes()2. My sister the Youth League last year.A. join B. joins C. joined D. joining()3. Father his coat and went out.A. put on B. puts on C. putted on D. puted on()4. The teacher me a question just now.A. ask B. asked C. asking D. asks()5. This is my ninth birthday and I eight years old last year.A. was B. were C. is D. are()6. Did you a letter to me last month?A. write B. writes C. writing D. wrote()7. Mother a story about a hungry wolf yeste