初中英语定语从句专项语法讲解(11页).doc

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1、-初中英语定语从句专项语法讲解-第 11 页一、定语从句的概念在复合句中，修饰某一名词或代词的从句叫定语从句。被修饰的名词或代词叫先行词，定语从句一般放在先行词的后面。二、定语从句的关系词引导定语从句的关系词有关系代词和关系副词，常见的关系代词包括that， which， who（宾格whom，所有格whose）等，关系副词包括where， when， why等。关系代词和关系副词放在先行词及定语从句之间起连接作用，同时又作定语从句的重要成分。三、定语从句的分类根据定语从句与先行词的关系，定语从句可分为限制性定语从句及非限制性定语从句。限制性定语从句紧跟先行词，主句与从句不用逗号分开，从句不可

2、省去，非限制性定语从句主句与从句之间有逗号分开，起补充说明作用，如省去，意思仍完整。四、关系代词的用法1. that 既可以用于指人，也可以用于指物。在从句中作主语或宾语，作主语时不可省略，作宾语可省略。例如：Mary likes music that is quiet and gentle.玛丽喜欢轻柔的音乐。（that作主语）The coat （that） I put on the desk is blue.我放在桌子上的那件外套是蓝色的。（that作宾语）2. which用于指物，在句中作主语或宾语，作主语不可省略，作宾语可省略。例如：The building which stands

3、near the train station is a supermarket.位于火车站附近的那座大楼是一家超市。（作主语）The film （which） we saw last night was wonderful. 我们昨天晚上看的那部电影很好看。（作宾语）3. who， whom用于指人，who 用作主语，whom用作宾语。在口语中，有时可用who代替whom，也可省略。例如：The girl who often helps me with my English is from England.经常在英语方面帮助我的那个女孩是英国人。（作主语）Who is the teacher

4、（whom） Li Ming is talking to？正在与李明谈话的老师是谁？（作宾语）注意：（1）当定语从句中含有介词，介词放在句末时，who， that， which可省略，但介词在关系代词前时，只能用“介词+which/whom”结构。例如：This is the house in which we lived last year.这是我们去年居住的房子。Please tell me from whom you borrowed the English novel.请告诉我你从谁那借的这本英文小说。（2）含有介词的固定动词词组中，介词不可前置，只能放在原来的位置上。例如：This

5、is the person whom you are looking for. 这就是你要找的那个人。(3）that 作介词的宾语时，介词不能放它的前面，只能放在从句中动词的后面。例如：The city that she lives in is very far away.她居住的城市非常远。（4）关系词只能用that的情况：a. 先行词被序数词或形容词最高级所修饰，或本身是序数词、基数词、形容词最高级时，只能用that，而不用which.例如：He was the first person that passed the exam. 他是第一个通过考试的人。b.被修饰的先行词为all， an

6、y， much， many， everything， anything， none， the one等不定代词时，只能用that，而不用which.例如： Is there anything that you want to buy in the shop？你在商店里有什么东西要买吗？c.先行词被the only， the very， the same， the last， little， few 等词修饰时，只能用that，而不用which.例如：This is the same bike that I lost.这就是我丢的那辆自行车。d. 先行词里同时含有人或物时，只能用that， 而不

7、用which.例如：I can remember well the persons and some pictures that I saw in the room.我能清楚记得我在那个房间所见到的人和一些照片。e.以who或which引导的特殊疑问句，为避免重复，只能用that.例如：Who is the girl that is crying？ 正在哭泣的那个女孩是谁？（5）关系词只能用which，而不用that 的情况：a.先行词为that， those时，用which， 而不用that.例如：Whats that which is under the desk？ 在桌子底下的那些东西是

8、什么？b.关系代词前有介词时，一般用which，而不用that.例如：This is the room in which he lives. 这是他居住的房间。c.引导非限制性定语从句，用which， 而不用that.例如：Tom came back， which made us happy. 汤姆回来了，这使我们很高兴。Unit 10 By the time I got outside, the bus had already leftThe First Period Teaching Aims and Demands1 Knowledge Objects（1） Key Vocabulary

9、 oversleep（2） Target Language What happened?I overslept And by the time I got up, my brother had already gotten in the shower2 Ability Objects（1） Teach the students to use the new words（2） Train the students to narrate past events with the Past Perfect Tense（3） Train the students listening and speak

10、ing skills with the target language3 Moral ObjectIts a good habit to go to bed early in the evening and get up early in the morning So youll never be in a hurry in the morningwww-2-1-cnjy-com Teaching Key Points1 Key Vocabulary oversleep2 Target Language Narrate past events with the Past Perfect Ten

11、se【版权所有：21教育】 Teaching Difficult Points1 Train the students to narrate past events with the Past Perfect Tense2 Train the students to understand the target language in spoken conversation Teaching Methods1 Thinking of examples from the students real lives21cnjycom2 Making sentences by looking at the

12、 pictures Teaching Procedures Step I Revision 1 Ask some questions like this: What volunteer work would you like to do? Help the students to answer, Id like to/I love to/I hope to【来源：21世纪教育网】 2 Practice the dialogue in Activity 3c on page 62 again 3 Check the students homework by asking some student

13、s to read their sentences with the phrasal verbs Then ask the students to hand in their homework Step 1aFirst write by the time on the blackboard and tell the class the meaning of itSay this sentence to the class: By the time the teacher came in, the students had begun reading EnglishTell them to no

14、te the structure had begun in this sentence Begun is the past participle of begin Explain what is the past participle form of a verb for the students Tell them it is as the same as the past form for a regular verb And they have to remember the irregular verbs participles one by oneWrite By the time

15、I came backon the blackboardSay to the class, By the time I came in What had happened?Help one student to answer like this, By the time the teacher came in, Don had written his name on the blackboardThen get more students to answer differently, Read the instructions to the students and read these qu

16、estions to the class as wellWhat do you usually do in, the morning before school? Do you like morning?Why or why not?Choose one good student to answer them by saying something he or she usually does in the morning21*cnjy*comThen have the whole class practice in pairs Ask each other the questionsAfte

17、r they finish talking, ask one or two pairs to say their conversations to the class Correct the mistakes they may make with the other studentsCall the students attention to the pictures in Activity la Then tell students to talk about the pictures in groups of four Move around the classroom, listenin

18、g to students and offering help Make sure that they talk in EnglishAfter they all finish talking, ask different groups to tell the class about the pictures Step 1bAsk the students to read the instructions together Have them look at the two columns, A and B ,in the chart Point out the sample answer R

19、ead the two parts of the sentenceThen go over the other unconnected parts of sentences, tooPlay the recording for the first timeStudents only listen Then play it a second time Let students match two parts of each sentence Check the answers by asking some students to tell their answersMake sure that

20、all of them have got the correct answers by listening Say congratulations to the students who get the answers correctly by guessingStep 1cFirst play the recording in Activity 1b again and let the students read after it Do it at least twiceThen read the instructions together with the whole classYou w

21、ill make conversations in pairs Each of you will have to take turns being Tina Look at the pictures in Activity la to help you Tell your partner what happened to you this morning Ask a pair to read the example to the class before they begirtHave the students work in pairs Move around the room offeri

22、ng language support as neededAfter they all finish talking, ask some pairs to say their conversations to the classStep SummaryStep Homework1 Write out the story of Tina, Note to use the target language2 Revise when to use the Past Perfect Tense and the verb structure of itThe Second Period Teaching

23、Aims and Demands1 Knowledge Objects（1） Target Language By the time she got to class, the teacher had already started teaching21世纪教育网版权所有 When she got to school, she realized she had left her backpack at home When I got home, I realized I had left my keys in the backpack（2）The Three Forms of the verb

24、s2 Ability Objects（1） Train the students listening skill（2） Train the students writing skill with the target language（3） Train the students speaking skill（4） Train the students to use the three forms of the verbs Teaching Key Points1 Listening practice with the target language2 Use the correct verb

25、forms to fill in the blanks by listening2-1-c-n-j-y3 Make sentences using the Past Perfect Tense4 The three forms of the verbs Teaching Difficult Points1 Write an ending for the story in Activity 2c2 The three verb forms in Grammar FocusTeaching ProceduresStep I Revision1 Revise what happened to Tin

26、a in the morning by asking one or two students to tell the stroy on page 682 Ask students to check each others homework in pairs, pointing out all the mistakes they might have made3 Revise the Past Perfect Tense by asking the children when to use it and what its verb structure isStep 2aRead the inst

27、ructions to the class Be sure that all of them know what to doCall the students attention to the four pictures Get them to guess the correct order of the pictures first The first one is given as a sample Ask one or two children to tell their stories by describing the pictures according to their own

28、orderPlay the recording the first time, students only listen Play the recording again and ask the children to number each pictureCheck the answers with the class and see who have ever got the correct answers without listeningStep 2bAsk the students to read the instructions together Point out the bla

29、nks in the sentences and the verbs in the brackets21教育网Let the students fill in the blanks with the correct forms individuallyMove around the classroom collecting the common mistakes they may makeAfter they all finish writing, tell them to get ready to listen to the conversation and check their answ

30、ersPlay the recording Students listen and check their answers Correct the answers by asking seven different students to say theirs to the classStep 2cAsk the whole class to read the instructions togetherWe have a new task now We know Tina was late for class What do you think happened after Tina was

31、late for class?Work with a partner Make up an ending for the story by continuing it The beginning has been givenGet students to discuss in pairs Complete the ending Make sure they are talking in English Move around the classroom, offering language support if needed After ten minutes, ask students to

32、 stop discussing Get some pairs of students to tell the class how they think the story ended And let the whole class decide whose ending is the best Tell each pair to write down their ending, or do it after class if time is not enoughStep Grammar FocusCall students attention to the sentences on the

33、left Ask four different students to read the four sentences and point out where had plus a past participle is used Write the sentences on the blackboardAsk the students to make sentences correctly using each form of the verbs in the box Check the answersStep Homework1 Write down the ending of Tinas

34、story2 Make sentences using each form of the verbs below:leave, walk, start, oversleep, ring, be3 Review the Grammar FocusThe Third Period Teaching Aims and Demands1 Knowledge Objects（1） Key Vocabularybell, ring, go off, rush, run off, on time, give sb a ride, lock, break down（2） Target Language By

35、the time I got there, the bus had already left By the time I woke up, my father had already gone into the bathroom2 Ability Objects Train the students reading skill with target language Train the students speaking skill with target language Teaching Key Points1 Guide the students to read the article

36、 in activity 3a2 Help the students do the oral practice with the target language Teaching Difficult Points1 Help improve the students reading skill by Activity 3a2 Help the students describe what has happened to them with the target language Teaching ProceduresStep Revision1 Revise what happened to

37、Tina by asking several students to tell the story2 Revise the three forms of the verbs in Grammar Focus by asking four students to write them out on the blackboard【出处：21教育名师】3 Check homework by asking one or two to read their own endings of the stroy4 Check homework by asking some students to read t

38、he sentences which they madeStep 3aAsk the whole class to read the instructions together There is an article in Activity 3a Your task is to read the story and write the events in the correct orderHave a look at the sample answer on the right of the article before you start Then let the children comp

39、lete the work on their own After a while, ask some students to report their answers to the class Write the events on the blackboard as they report, putting the events in the correct orderAfter checking the answers, tell students to read the article again more carefullyTell them to find out the words

40、 or sentences which they cant understand this timeA few minutes later, let the students ask questions on the words and sentences which they cant understand Do some explanation and make sure that the students make everything clear about the articleThen ask the students to read the article aloud Move

41、around the classroom while they are reading, offering help as neededNext ask students to pick out the sentences with the Past Perfect Tense Tell them to underline them and come up with the reason to use the tenceAsk two students to read their answers and explain the sentencesStep 3bCall the students

42、 attention to the photo of the woman sleeping The girl is sleeping She may oversleep How about you?Have you ever overslept?Get a students to answer the question simply, such as Yes, I have /No, I haventThen ask one student to read the instructions to the classExplain that describe the circumstances

43、means to tell when, where and how the things happenedAsk one student who has ever overslept to answer the first question and describe the circumstance Help him or her use the Past Perfect Tense to describe the circumstanceThen ask students to read the questions and write their answers in their exerc

44、ise books Tell them that they have to describe the circumstances if their answers are Yes, and there should be at least one sentence with the Past Perfect Tense in each description Move around the classroom providing sentences to the ones who need Ask several students to share their stories with the

45、 class Correct any mistakes they may make Let them check the answers in pairsStep 3cAsk the whole class to read the instructions together Then call the students attention to the sample conversation on the right Ask a pair of the students to read the conversation to the class Please ask your partner

46、the questions in Activity 3b Ask more questions if he or she says YesAsk the students to work in pairs Encourage them to ask as many questions as they can As they work, move around the room offering help and answering questions as needed Ask some pairs to say their conversations to the classStep homework1 Write the answers to the questions in Activity 3b2 Write a conversation in Activity 3cThe Fourth PeriodI Teaching Aims and Demands1 Knowledge Objects（1） Key Vocabularycostume, show up, exhausted, embarrassed, empty, fool, April Fools D