人教版英语九年级ppt课件单元语法聚焦(十三)

Unit 13Were trying to save the earth!,空白演示,在此输入您的封面副标题,空白演示在此输入您的封面副标题,单元语法聚焦(十三),单元语法聚焦(十三),人教版英语九年级ppt课件单元语法聚焦(十三),动词的时态,一、一般现在时,1,一般现在时动词第三人称单数的构成,动词的时态,2.,一般现在时的句型结构,2.一般现在时的句型结构,3.,一般现在时的基本用法,(1),一般现在时表示现在经常或反复发生的动作或存在的状态,，,常与表示一般状态的时间状语,often,，,sometimes,，,usually,，,always,，,every day,，,twice a month,等连用。,eg,：,My grandmother always takes a walk after supper.,我奶奶总是晚饭后散步。,(2),表示客观真理、科学事实、格言等。,eg,：,The earth moves around the sun.,地球围绕太阳转。,3.一般现在时的基本用法,(3),在时间和条件状语从句中,，,用一般现在时代替一般将来时。,eg,：,If it is fine tomorrow,，,we will have a picnic.,如果明天是晴天,，,我们就去野餐。,(4),用在某些表达中,，,表示现在正在发生的动作或存在的状态。,eg,：,Here comes the bus,！公共汽车来了！,There goes the bell.,铃响了。,(3)在时间和条件状语从句中，用一般现在时代替一般将来时。e,二、现在进行时,1,现在分词的变化规则,二、现在进行时,2.,现在进行时的句型结构,(1),肯定句：主语,am/is/are,doing,其他,(2),否定句：主语,are/is/am not,doing,其他,(3),一般疑问句：,Am/Is/Are,主语,doing,其他？,(4),特殊疑问句：特殊疑问词一般疑问句？,2.现在进行时的句型结构,3,现在进行时的一般用法,(1),一般情况下,，,现在进行时表示此时此刻正在进行的动作,，,通常与表示现在进行时的时间状语,now,，,at present,，,at the moment,，,these days,等连用。当有,listen,，,look,等提示词时,，,后面的句子常用现在进行时。,eg,：,Nancy is watching TV at the moment.,此时南希正在看电视。,Listen,！,She is singing in the next room.,听！她正在隔壁房间唱歌。,3现在进行时的一般用法,(2),现在进行时表示现阶段正在进行的动作,(,说话时不一定在进行这个动作,),。,eg,：,They are preparing for the sports meeting these days.,这些天他们正在为运动会做准备。,(3),现在进行时态表示将来,，,只限于,go,，,come,，,stay,，,leave,，,start,，,begin,等位移动词。,eg,：,My father is leaving for Beijing tomorrow.,我父亲明天要去北京。,Im going to Shenzhen next Monday.,下周一我要去深圳。,(2)现在进行时表示现阶段正在进行的动作(说话时不一定在进行,三、一般过去时,一般过去时表示过去发生的动作或存在的状态,，,常用的时间状语有,yesterday,，,ago,，,last night(week,，,month),，,just now,，,in 2000,等。,eg,：,It snowed heavily last night.,昨天晚上雪下得很大。,It was very cold yesterday.,昨天非常冷。,三、一般过去时,四、一般将来时,一般将来时表示将来某个时间将要发生的动作或存在的状态,，,常用的时间状语有：,tomorrow,，,next week(year,，,month),，,in two days,等。,eg,：,Mr.Wu will teach us English this term.,这学期吴老师将教我们英语。,I will go to my hometown next week.,下周我要回老家。,四、一般将来时,【,温馨提示,】,(1),“,be going to,动词原形,”,表示即将发生某事或者打算、计划要做某事。,eg,：,Im going to do my homework this evening.,我打算今天晚上做作业。,(2)come,，,go,，,start,，,move,，,leave,等动词常用进行时态表示按计划将要发生的事。,eg,：,They are leaving for Beijing tomorrow.,他们明天动身去北京。,【温馨提示】(1)“be going to动词原形”表示即,五、过去进行时,过去进行时表示过去某一时刻或某一时段正在发生或进行的动作,，,常用时间状语有,at this(that)time yesterday,，,at nine oclock yesterday,等。,eg,：,They were working in class this time yesterday.,昨天这个时候他们正在上课。,I was drawing a horse when the teacher came in.,老师进来时,，,我正在画一匹马。,五、过去进行时,六、现在完成时,现在完成时表示过去发生的某个动作对现在造成的影响和结果,，,或表示过去已经开始,，,持续到现在的动作或状态。常与,already,，,never,，,ever,，,just,，,yet,等时间状语或,these days,，,for two years,，,since 2000,，,since,过去时态等连用。,eg,：,He has taught at this school since 2010.,他从,2010,年起一直在这所学校任教。,六、现在完成时,动词的语态,一、被动语态的构成,被动语态由,“,be,及物动词的过去分词,”,构成。人称、数和时态的变化是通过,be,的变化表现出来的。,常考的动词的被动语态主要有：,1,一般现在时的被动语态,由助动词,be,的现在式,am/is/are,及物动词的过去分词构成。,eg,：,Computers are made in the USA.,计算机是在美国被制造的。,动词的语态,2,一般过去时的被动语态,由助动词,was/were,及物动词的过去分词构成。,eg,：,This park was built in 1999.,这个公园建造于,1999,年。,3,一般将来时的被动语态,由,will be,动词的过去分词构成。,eg,：,These homework will be finished in ten minutes.,这些作业将在,10,分钟内完成。,2一般过去时的被动语态,4,现在完成时的被动语态,由,has/have been,动词过去分词构成。,eg,：,The child has been taken care of by her all these years.,这些年来,，,这个孩子都由她照顾。,5,含有情态动词的被动语态,其结构为：情态动词,be,及物动词的过去分词。,eg,：,The young trees should be planted in spring.,应该在春天植树。,4现在完成时的被动语态,二、使实被动语态时的注意事项,(1),只有及物动词或相当于及物动词的短语才有被动语态,，,不及物动词、系动词没有被动语态。,eg,：,Our classroom is cleaned every day.,我们每天打扫教室。,(2),有些使役动词和感官动词在主动语态中接不带,to,的动词不定式作宾语补足语,，,但改为被动语态时,，,不定式符号,to,必须补上。,eg,：,I often hear her sing the song in her room.,She is often heard to sing the song in her room.,二、使实被动语态时的注意事项,(3),双宾语的被动语态。直接宾语和间接宾语都可以作被动语态的主语,，,但直接宾语作被动语态的主语时,，,在间接宾语前要加相应的介词。,eg,：,I bought him a book.He was bought a book./A book was bought for him.,He gave me a book.I was given a book./A book was given to me.,(4),动词短语的被动语态。动词短语是一个整体,，,在变为被动语态时,，,不能把动词后面的介词或副词丢掉。,eg,：,Mrs.Liu takes care of the baby.,The baby is taken care of by Mrs.Liu.,(3)双宾语的被动语态。直接宾语和间接宾语都可以作被动语态的,感叹句,感叹句是用来表示人的喜、怒、哀、乐等强烈感情的句子,，,句末通常用感叹号,，,也可用句号。感叹句通常由,what,或,how,引出。,1,what,修饰名词,，,且名词前可有冠词或形容词修饰,，,what,引导的感叹句结构有：,(l)What,a/an,形容词可数名词单数,(,主语谓语,),！,eg,：,What a cool day(it is),！多么凉爽的天啊！,What an interesting game(this is),！,(,这是,),多么有趣的游戏啊！,(2)What,形容词可数名词复数,(,主语谓语,),！,eg,：,What beautiful flowers(they are),！多么漂亮的花啊！,感叹句,(3)What,形容词不可数名词,(,主语谓语,),！,eg,：,What great fun chatting on the Internet is,！上网聊天真是太有趣了！,2,how,修饰形容词、副词或句子,，,how,引导的感叹句结构有：,(1)How,形容词,/,副词,(,主语谓语,),！,eg,：,How happy they are,！他们多么快乐啊！,How hard he works,！他工作得多努力啊！,(2)How,主语谓语,(,其他,),！,eg,：,How I wish to join the basketball club,！我多么想加入篮球俱乐部啊！,(3)What形容词不可数名词(主语谓语)！eg：,人教版英语九年级ppt课件单元语法聚焦(十三),一、用括号内所给动词的适当形式填空。,1,A serious car accident,_,(happen)in this street last Sunday.,2,What will the weather be like this coming Saturday?,I hope it _(be)a fine day for our picnic!I cant wait!,3,Do you like junk food,，,Linda?,Thats my favorite.The more junk food I,(have),，,the happier I _(be),4,What did your mother say about this?,She _(say)that she _(try)her best to help me with my English next term.,happened,will be,have,will be,said,would try,一、用括号内