定语从句·时态·各句型详解.docx

初中定语从句讲解及练习一、定义：在复合句中，修饰某一名词或代词的从句叫做定语从句。如：1) The man who lives next to us is a policeman. 2) You must do everything that I do. 上面两句中的man和everything是定语从句所修饰的词，叫先行词，定语从句放在先行词的后面。引导定语从句的词有关系代词that, which, who(宾格who, 所有格whose)和关系副词where, when、why关系词常有三个作用：1、引导定语从句 2、代替先行词 3、在定语从句中担当一个成分二、关系代词引导的定语从句1.who指人，在从句中做主语(1)The boys who are playing football are from Class One.(2)Yesterday I helped an old man who lost his way.2. whom指人，在定语从句中充当宾语，常可省略。 (1) Mr. Liu is the person (whom) you talked about. 注意：关系代词whom在口语和非正式语体中常用who代替，可省略。 (3) The man who/whom you met just now is my friend.3. which指物，在定语从句中做主语或者宾语，做宾语时可省略 (1) Football is a game which is liked by most boys. ( which 在句子中做主语) (2) This is the pen (which) he bought yesterday. ( which 在句子中做宾语)4. that指人时，相当于who或者whom；指物时，相当于which。在宾语从句中做主语或者宾语，做宾语时可省略。 (5) The people that/who come to visit the city are all here. (在句子中做主语) (6) Where is the man that/whom I saw this morning? (在句子中做宾语)5. whose通常指人，也可指物，在定语从句中做定语 (1) He has a friend whose father is a doctor. (2) I lived in a house whose roof has fallen in. whose指物时，常用以下结构来代替(3)The classroom whose door is broken will soon be repaired.=The classroom the door of which is broken will soon be repaired.(5)Do you like the book whose color is yellow?=Do you like the book the color of which is yellow?附练习（一） 定 语 从 句 练 习练习(一)请分析一下定语从句：( 请划出定语从句，并标出先行词)1. Check the ways you study for an English test. 2. Another thing that I found very difficult was English grammar. 3. You couldnt understand people who talked fast. 4. I have some ideas that may help. 5. They said something you didnt like. 6. Can you think of any problems you have had recently?8. He would always take pride in everything good I do. 9. My friends and I talked about the rules that we have in school. 10. What are some of the rules that a teenager should obey?12. If you know anyone else who collects them, please tell me. 13. Standing very close to the person you are talking with is quite common in some countries. 14. If you know someone you know doing this, you can ask them. 15. All I ever wanted to do was traveling. 二、用关系代词填空：that 、which 、who、 whom 、whose 1. This is the man _ wants to see you.2. The student _ answered the question is Zhang Hua.3. The man _ you went to see has come.4. The man _I met yesterday lent me some money.5. The woman _ you saw is our geography teacher. 6. The runner _ you are asking about is over there.7. The person _ you should write to is Mr. Ball.8. The man _was passing by saw what happened.9. Here is the pen _ you lost the day before yesterday.10. These books _ you lent me were very useful.11. The storybook _ I have just read cannot be easily forgotten.12. A clock is a machine _ tells people the time.13. This is shirt _I bought yesterday.14. A dictionary is a book _ gives the meaning to the word.15. The book _ is on the table is mine.16. The film _ they are talking about is very interesting.17. I will never forget the people and the places _ I have ever visited.18. Is there anyone _ family is in Beijing?19. Show me the boy _ mother is a well-known singer.20. The boy_ father is a teacher is good at English.三、单项选择( ) 1. Your teacher of Chinese is a young lady_ comes from Beijing. A. who B. which C. whom D. whose( ) 2. Whats the name of the program_. A. which are listening B. you are listening to C. to that you are listening D. that you are listening( ) 3. The students were all interested _ you told them yesterday. A. in which B. in that this C. all that D. in everything( ) 4. He was the only person in his office_ was invited. A. whom B. whose C. that D. which( ) 5. This is the museum_ we visited last year. A. where B. in which C. which D. in that( ) 6. Charlie told his mother all_ had happened. A. that B. what C. which D. who( ) 7. Do you know the student_? A. whom I often talk B. with who I often talk C. I often talk with D. that I often talk( ) 8. I like the house_ windows face south. A. whose B. whos C. its D. its( ) 9. Would you tell me where to get the dictionary _? A. what I need B.I need C. which I need it D. that I need it( )10. The young woman_ I spoke just now is a young doctor. A. who B. to whom C. whom D. that 练习(一)一、注：（划了线的是定语从句） 方框里的词是先行词 1. Check the ways you study for an English test. （2. Another thing that I found very difficult was English grammar. 3. You couldnt understand people who talked fast. 4. I have some ideas that may help. 5. They said something you didnt like. 6. Can you think of any problems you have had recently?8. He would always take pride in everything good I do. 9. My friends and I talked about the rules that we have in school. 10. What are some of the rules that a teenager should obey?12. If you know anyone else who collects them, please tell me. 13. Standing very close to the person you are talking with is quite common in some countries. 14. If you know someone you know doing this, you can ask them. 15. All I ever wanted to do was traveling. 二、用关系代词填空：that 、which 、who、 whom 、whose 1. This is the man _that who _ wants to see you.2. The student _ that who _ answered the question is Zhang Hua.3. The man _ that who _ you went to see has come.4. The man _ that who _whom_I met yesterday lent me some money.5. The woman _ that who whom_ you saw is our geography teacher. 6. The runner _ that who whom_ you are asking about is over there.7. The person _ that who whom_ you should write to is Mr. Ball.8. The man _ that who _was passing by saw what happened.9. Here is the pen _that which_ you lost the day before yesterday.10. These books _that which_ you lent me were very useful.11. The storybook _ that which_ I have just read cannot be easily forgotten.12. A clock is a machine _ that which_ tells people the time.13. This is shirt _ that which_I bought yesterday.14. A dictionary is a book _ that which_ gives the meaning to the word.15. The book _ that which_ is on the table is mine.16. The film _ that which_ they are talking about is very interesting.17. I will never forget the people and the places _that_ I have ever visited.18. Is there anyone _whose_ family is in Beijing?19. Show me the boy _whose_ mother is a well-known singer.20. The boy_whose_ father is a teacher is good at English.三选择1-5 ADACC6-10 ACABB1.构成表示一般过去式的动词通常用动词的过去式形式来表示，而动词的过去式是在动词原形的基础上变化的。动词的过去式可分为规则动词和不规则动词。规则动词的过去式变化如下：（1）一般情况下，动词词尾加 -ed ，如： worked played wanted acted （2）以不发音的 -e 结尾动词，动词词尾加 -d，如： lived moved decided declined hoped judged raised wiped （3）以辅音字母 + y结尾的动词，把-y变为-i 再加-ed，如： studied tried copied justified cried carried embodied emptied （4）以一个辅音字母结尾的重读闭音节动词，双写词尾辅音字母，再加 -ed，如： stopped begged fretted dragged dropped planned dotted dripped （5）注：不规则动词的过去式变化规律性不强，须多加记忆。 go - went，make - made，get - got ，buy - bought ，come - came ，fly-flew ，is/am-was，are-were ，see-saw ，bring-brought，do-did，teach-taught, think-thought, say-said,sit-sat. read-read, spend-spent, eat-ate,give-gave,sit-sat,tell-told,write-wrote,fell-felt,find-found,hear-heard,know-knew,put-put,grow-grew,take,took,catch-caught,come-camebecome-became,swim-swam 2.读法：规则动词词尾加-ed有三种读音：1. 在清辅音后读作t。如：asked, helped, watched, stopped2. 在浊辅音和元音后读作d。如：enjoyed, studied, moved, called3. 在t / d后读作id。如：wanted, needed不规则动词的过去式大体上归纳有以下六条记忆法：1. 以t结尾的词，过去式与原形相同。如：putput, letlet, cutcut, beatbeat2. 以d结尾的词，把d变成t。如:buildbuilt, lendlent, sendsent, spendspent3. 以n结尾的词，在词后加t。如：meanmeant, burnburnt, learnlearnt4. 以ow / aw结尾的词，把ow / aw变成ew。如：blowblew, drawdrew, knowknew, growgrew5. 含有双写字母的词，将双写改为单写，在词尾加t。如：keepkept, sleepslept, feelfelt, smellsmelt6. 含有元音字母o / i的词，将o / i变成a。如：singsang, givegave, sitsat, drinkdrank 一般现在时定义 一般现在时。表示通常性、规律性、习惯性的状态或者动作（有时间规律发生的事件）的一种时间状态。（很拗口，但是要学会就必须深刻体会） 基本结构构成表 肯定式 疑问式 否定式 否定疑问式I work. Do I work? I do not work. Do I not work?You work. Do you work? You do not work. Do you not work?We work. Do we work? We do not work. Do we not work?They work. Do they work? They do not work. Do they not work?He(She,It) works. Does he(she,it) work? He(She,It) does not work. Does he(she,it) not work?口诀 当主语是第三人称单数时 肯定句 主语+动词三单+其他 否定句 主语+doesnt+动词原形+其他 一般疑问句 Does+主语+动词原形+其他 肯定回答 Yes，主语+does 否定回答 No，主语+doesnt 特殊疑问句 特殊疑问词+一般疑问句 当主语不是第三人称单数时 肯定句 主语+动词原形+其他 否定句 主语+dont+动词原形+其他 一般疑问句 Do+主语+动词原形+其他 用错结构全句都错，一定要注意。 第三人称单数变化规律 情况 构成方法? 读音? 例词?一般情况 加 -s 清辅音后读/s/ 浊辅音和元音后读/z/ swim-swims； help-helps；like-likes 以o结尾的词 加-s或-es 读/z/ tomatoes；potatoes；photos以ce,se,ze,ge等结尾的词 加 -s 读/iz/ prices；cases；oranges以s,sh,ch,x等结尾的词 加 -es 读/iz/ teach-teaches；bus-buses以辅音字母+y结尾的词 变y 为i再加es 读/z/ study-studies 以f或fe结尾的词 去f或fe该加ves 读/iz/ wife-wives knife-knives leaf -leaves 具体用法表示 1.表示经常的或习惯性的动作，常与表示频率的时间状语连用。 时间状语： always, usually,regularly,every morning/night/evening/day/week,often,sometimes,occasionally,from time to time,twice a week,rarely,seldom,once a month, hardly, ever,never. e.g. I leave home for school at 7:00 every morning. .表示主语具备的性格、能力、特征和状态。 e.g. I dont want so much. Ann Wang writes good English but does not speak well. 比较：Now I put the sugar in the cup. I am doing my homework now. 3.表示客观事实和普遍真理。 e.g The earth moves around the sun. Shanghai lies in the east of China. 4.在时间状语从句和条件状语从句中，常用一般现在时代替将来时。 5.表示预先计划或安排好的行为。 6.小说故事用一般现在时代替一般过去时。新闻报道类的内容，为了体现其“新鲜”性，也用一般现在时来表示过去发生的事情。 7.有些表示状态和感觉的动词表示现在发生的具体行为时，只用一般现在时，而不用进行时态。 8.表示现在发生的具体动作或存在的状态 9表示格言或警句中。 e.g Pride goes before a fall. 骄者必败。 注意：此用法如果出现在宾语从句中，即使主句是过去时，从句谓语也要用一般现在时。 例：Columbus proved that the earth is round. 第一句用一般现在时，用于操作演示或指导说明的示范性动作，表示言行的瞬间动作。再如：Now watch me, I switch on the current and stand back. 第二句中的now是进行时的标志，表示正在进行的动作的客观状况，所以后句用一般现在时。 一般现在时表将来 1）下列动词：come, go, arrive, leave, start, begin, return,live,fly的一般现在时表将来。这主要用来表示在时间上已确定或安排好的事情(即按照固定时间表将来发生的动作)。 The train leaves at six tomorrow morning. When does the bus start? It starts in ten minutes. 2）倒装句，表示动作正在进行，如： Here comes the bus. = The bus is coming. There goes the bell. = The bell is ringing. 3）在时间或条件句中。 When Bill comes (不是will come), ask him to wait for me. Ill write to you as soon as I arrive there. 4）在动词hope, take care that, make sure that等后。 I hope they have a nice time next week. Make sure that the windows are closed before you leave the room. 5).表示按规定、计划或时间表将要发生的事。 He starts next week. 他下个星期出发。 We leave very soon. 我们很快就离开。 The train starts at 10 oclock in the morning. 火车将在早上10点开出。 这类用法限于表示“移动”的动词：go去，come来，leave离开，start出发，begin开始，arrive到达，take off起飞，等。牛津版小学英语现在进行时（讲解、练习、答案）一、概念现在进行时表示说话时正在进行或发生的动作,也可表示当前一段时间内的活动或现阶段正在进行的动作结构：助动词 be ( am / is / are ) +现在分词.二、 现在分词的构成：1.大多数动词后可在动词后直接加-ing Eg: carry-carrying,catch-catching,drink-drinking, enjoy-enjoying hurry-hurrying ,do-doing , read-reading , think-thinking2. 如果动词以-e结尾,则去掉-e,再加-ing,如come-coming , have-having , make-making,ride-riding,write-writing,take-taking,use-using3. 如果动词只有一个元音字母,而其后跟有一个辅音字母时,将此辅音字母双写,再加-ing如： hit-hitting,let-letting, put-putting,run-running,sit-sitting4. 如果动词有两个音节,且重音在第二个音节上,则末尾的辅音字母须双写,再加-ing,如: forget-forgetting,prefer-preferring,upset-upsetting试比较 benefit/benfiting, differ/differing,profit/profiting,这些词的重音在第一个音节上,因此其末尾的辅音字母不双写5. 以 -ic 结尾的动词,应先把 -ic 变为 -ick,再加 -ing,eg: panic/panicking,picnic/picnicking,但 lie/lying ,die/dying,tie/tying是特殊变化要记住三、句型结构：1.现在进行时的肯定形式、否定形式、疑问形式及其回答,所有变化都体现在助动词 be ( is / am / are ) 上1)现在进行时的肯定形式：主语+be(am/ is/are)+doing+其他成分I am singing . They are writing .2)现在进行时的否定形式:主语+be(am/ is/are)+not +doing+其他成分I am not singing . They arent writing .3）一般疑问句及回答：be(am/ is/are)+ 主语+doing+其他成分Am I singing ? Yes ,you are . / No ,you arent .Are they writing ? Yes ,they are . / No ,they arent .4)特殊疑问句及回答:特殊疑问词+be(am/ is/are)+主语+doing+其他成分What are you doing ? We are playing (要求就提问内容具体回答).2. 缩写形式如下:I am-Im You are-Youre He is-Hes She is-Shes It is-Its We are-Were They are-Theyre3.说明: 不是所有动词都能用现在进行时态的,如：see、like、want、know 等动词往往都不用进行时态四用法：1.表示现在( 指说话人说话时) 正在发生的事情往往与 now,at the moment,just 等副词连用,以示强调We are waiting for you. What are you doing? Some ones knocking at the door2.正在进行着的动作可视为未完成的动作：Hes talking to his friends in the classroom.可用 still 一词强调动作的持续性Hes still talking to his friends in the classroom.3. 表示长期的或重复性的动作,说话时动作未必正在进行Mr. Black is writing another article.Dont take that book away. Your fathers using it.She is learning piano under Mr. Black.4.现在进行时可用来表示不会长期发生的动作或情况,或被认为在短期内正在进行的动作或存在的情况：Whats your brother doing these days? Hes studying English at Oxford University.5.现在进行时也可以用来表示当前的动向：People are becoming more and more beautiful these days.6. 表示渐变的动词有：become,turn,get,grow,run,go,begin等The leaves are turning brown.Its getting colder and colder.7.与always,constantly,forever 等词连用,表示反复发生的动作或持续存在的状态,往往带有说话人的主观色彩You are always changing your mind.8. 现在进行时(以及 be going to）可以表示为将来安排好的活动和事件 Were spending next winter in China. 用arrive,come,go,leave 等动词的现在进行时描写行 程安排,也通常有“将到达”和“将离去”的意思： Hes arriving tomorrow morning.9.当现在进行时表示某事发生的次数过多时,则有时含有抱怨,讨厌,赞扬等的意思：He is always singing at night,and we cant fall asleep late at night. 练习 一.用现在进行时完成下列句子:1. _you_(fly) a kite? Yes,_.2. _you_(sit) in the boat?3. _he_(talk) with me?4. We_(play) football now.5. What_you_(do)?6. I_(sing) an English song.7. What_he_(mend)?8. He_(mend) a car.9. These boys _ (play) tennis on the playground.10. My mother_ (cook) in the kitchen.11. We cant help you,because we _ (have )classes.12. _ the boy _ (write) his homework?13. Look! These butterflies _ (fly) in the sky.14. Listen! The girl _ (sing) in the next room.15. The naughty boy _ (swim) in the river.二.选择1. Look. Lucy is_ a new bike today.A. jumping B. running C. riding D takeing2. The children _ football.A. is playing B. are playing C. play the D. play a3. They _TV in the evening. They do their homework.A. are watching B. cant watching C. dont watch D. dont watching4. Listen! She_ in the classroom.A. is singingB. sing C .to sing D. is sing5. _are you eating? Im eating _ meat.A. What,some B. Which,any C. Where,not D. What,a6. Is she _ something?A. eat B. eating C. eatting D. eats7.My dictionary _,I have looked for it everywhere but still_ it.A. has lost,dont find B. is missing,dont findC. has lost,havent found D. is missing,havent found.8.Having a computer for personal use is no easy task because technology _ so rapidly.A. is changing B. has changed C. will have changedD. will change9. The building_ ,I cant stand the noise.A. was being built B. is built C. is being built D. builds10. I cant catch up with the fashion,because the clothes style_ all the time.A. has changed B. is changed C. is changing D. changed11. Its six in the afternoon. The Greens_ lunch together.A. has B. are having C. have hadD. had had12. Dont make any noise while the students_ to the class. A. are listening B. listened C. have listened D. had listened13. Jack and Ketty_ in the lake. Lets join them,shall we? A. swim B. have swum C. swamD. are swimming14. Look! The children_ basketball on the playground.A. plays B. played C. is playing D. are playing15. The kite_ high in the sky now. It looks like a big bird.A. has flown B. is flying C. was flying D. flew16.As we all know,the population in the world _ faster and faster.A. is grown B. is growing C. are grown D. are growing17. To my surprise,he_ in class.A. is always speaking B. would always speak C. has always been speaking D. does speak always18. I want to know when he _ for New York tomorrow. A. has left B. is leaving C. had left D. has been leaving19. He_ of how he can do more for the people.A. had always thought B. is always thinking C.has always been thought D. thinking always20. Forests _ and burned at such a speed that they will disappear from the earth in the future. A.cu