人教版八年級英語上冊《Unit 9 Section A 3c》教學課件PPT初二優(yōu)秀公開課

1、Unit 9 Section A Grammar Focus-3c人教版 英語 八年級 上冊 ObjectivesTo learn to use “Can you/he/they?” to make invitations.To use the following structure to talk about obligations: I might have to/mustTo learn how to communicate with others politely.Oh, Sam! I remember we went bike riding last fall when Review

2、Hey, Anna, can you come to my birthday party on Saturday? Can you play chess with me tomorrow afternoon?Sure. Id love to.Im afraid not. I have the flu.Can Lily take a walk with us?No, she cant. She must prepare for the exam.Can you come to my party on Saturday?Sure, Id love to./Sorry, I must study f

3、or a math test.Can you go to the movies tomorrow night?Sure. That sounds great.Im afraid not. I have the flu.Can he go to the party?No, he cant. He has to help his parents.Can she go to the baseball game?No. shes not available. She must go to the doctor.Can they go to the movies?No, theyre not free.

4、 They might have to meet their friends.Grammar Focus1.-Can you.?-.(接受接受）2.-Can you.?-.(拒絕拒絕）情態(tài)動詞主要有情態(tài)動詞主要有：may/might, can/could, must, have to, shall/should, will/would, ought to, need, dare, used to現(xiàn)在我們來著重學習情態(tài)動詞現(xiàn)在我們來著重學習情態(tài)動詞can 以以及及have to 的用法的用法。 其特征主要有其特征主要有：情態(tài)動情態(tài)動詞詞 can 的基本用的基本用法法情態(tài)動情態(tài)動詞詞 can 有一

5、定的詞義，但不能獨立存在，它必有一定的詞義，但不能獨立存在，它必須須 與動詞原形一起構成謂語。情態(tài)動與動詞原形一起構成謂語。情態(tài)動詞詞 can 沒有人稱和沒有人稱和數(shù)數(shù) 的變化。其具體用法如下的變化。其具體用法如下:1. 表示表示“能、會能、會”指腦力或體力方面的指腦力或體力方面的“能力能力”。如。如:I can speak Japanese. 我會講日語我會講日語。Frank can swim but I cant. 佛蘭克會游泳佛蘭克會游泳, 但我不會但我不會。2.2.表示表示“可能可能”，常用于否定句或疑問句中，指某種，常用于否定句或疑問句中，指某種可可 能性。例如能性。例如：My co

6、usin cant be in this city. He is in Korea now.我堂兄不可能在這個城市里。他在韓國呢我堂兄不可能在這個城市里。他在韓國呢。Can he come to our club today, please?請問他今天能來我們俱樂部嗎請問他今天能來我們俱樂部嗎？3. 表示表示“可以可以”，常用于口語中，指許可或請求做某，常用于口語中，指許可或請求做某事事Can I ask you a question? 我可以問你一個問題嗎我可以問你一個問題嗎？You can bring something to eat. 你可以帶些吃的你可以帶些吃的。can為情態(tài)動詞為情態(tài)

7、動詞, 在本單元中表示在本單元中表示請求請求，用于發(fā)出邀請，后用于發(fā)出邀請，后跟跟 動詞原形動詞原形。當同意接受對方的邀請時，常用。當同意接受對方的邀請時，常用Sure, Id love to. / Certainly. /Of course.等來回答；若不接受等來回答；若不接受，常用常用Sorry 等來有禮貌地拒絕等來有禮貌地拒絕，一般情況下需要說明不能接受邀請的一般情況下需要說明不能接受邀請的原原 因以表示歉意因以表示歉意。Can you come to my birthday party tomorrow？明天你來參加我的生日聚會，好嗎明天你來參加我的生日聚會，好嗎？Sorry, I c

8、ant. I am going to visit my grandpa.很抱歉，我來不了，我要去看我爺爺很抱歉，我來不了，我要去看我爺爺。can/may(1)都可表示都可表示“許可許可” 。may用于較正式場合用于較正式場合，can比較口語化比較口語化。You may/can smoke here.Borrowers may not take out of the library more than two books at a time.The policeman says you cant park here.(2) May/Can I/we? 表示征詢對方許可表示征詢對方許可。 Can

9、you? 表請求表請求。 May I use your phone? Yes, you may./Yes, please. /No, you may not. /No, you mustnt. /No, youd better not. /Im afraid not./Im sorry. Id rather you didnt. Can I go out and play, Mum?Yes/Certainly, you can. /No, you cant. Can you help me with this bag?With pleasure./Sorry, I cant.(3) 都可表示都

10、可表示“可能性可能性”Mr. Reed looks pale. He may be ill. Mr. Read is in poor health. He can be ill at any time.This news may be true. (=might/could)Wang Wei can be really stubborn.Mr. Reed looks pale. He may be ill. Mr. Read is in poor health. He can be ill at any time.This news may be true. (=might/could) Wa

11、ng Wei can be really stubborn.(4) can 還可表示還可表示“能力能力”、“能夠能夠”You can swim, cant you?No, I cant.I cant promise anything, but Ill do what I can.Tickets can be bought from the Tourist Information Center.have to 的用的用法法1. have (has) to + 動詞原動詞原形形have (has) to 后面要用動詞原形。當主語為第三人稱單后面要用動詞原形。當主語為第三人稱單數(shù)數(shù) 時時用用 has

12、 to，當句子是過去時當句子是過去時用用 had to。We have to go home now.我們不得不現(xiàn)在就回家我們不得不現(xiàn)在就回家。He has to work on Sunday.他不得不在周日工作他不得不在周日工作。I had to do much housework last Sunday.上周日我不得不做很多作業(yè)上周日我不得不做很多作業(yè)。2. have to 的的否定句否定句句型句型：主主語語 +dont/didnt/doesnt wont +have to + 動詞原動詞原形形You dont have to walk so fast.你不必走那么快你不必走那么快。He

13、will not have to buy a new coat next year.明年他沒必要買新外衣了明年他沒必要買新外衣了。3. have to 的的疑問句疑問句句型句型：Do/Does/Did/Will + 主主語語 + have to + 動詞原動詞原形形Did he have to ask the question?他非要問那個問題嗎他非要問那個問題嗎？Yes, he did. 是的是的。No, he didnt (have to). 不不。1.1.不能獨立作謂語，只能和動詞原形一起構成謂語不能獨立作謂語，只能和動詞原形一起構成謂語， 表示說話人的語氣和情態(tài)表示說話人的語氣和情態(tài)。

14、2.2.沒有人稱和數(shù)的變化沒有人稱和數(shù)的變化。 (have to除外除外)3.3.否定形式：在其之后加否定形式：在其之后加not (have to除外除外)疑問形式：情態(tài)動詞提到主語之前疑問形式：情態(tài)動詞提到主語之前(have to除外除外)。3. have to的意思是的意思是“必須、不得不必須、不得不”, 往往強調(diào)由于客觀原往往強調(diào)由于客觀原因因 而必須做某事而必須做某事。 have to 后接動詞原形后接動詞原形；have to有人稱、數(shù)有人稱、數(shù)和和 時態(tài)的變化時態(tài)的變化, 其其第三人稱單數(shù)形式第三人稱單數(shù)形式為為has to, 其其疑問形式和否疑問形式和否定定 形式形式要借助于助動詞

15、要借助于助動詞do或或does來完成。例如來完成。例如：We have to look after our sister at home.我們不得不在家照顧我們的妹妹我們不得不在家照顧我們的妹妹。Does he have to get up early tomorrow morning?明天早上他必須早起嗎明天早上他必須早起嗎？I dont have to stay at home today. 今天我不必待在家里今天我不必待在家里。4. must/have tomust 表示主觀表示主觀“必須必須”；have to表示客觀客觀需要，表示客觀客觀需要，即即 “不得不不得不” 。I dont l

16、ike this TV set. I must buy a new one.This TV set doesnt work. We have to buy a new one.You must get up at five tomorrow.We (will) have to get up early tomorrow.I had to leave early because I wasnt feeling well. She said she must/had to see the manager.小結小結表示邀請的句型表示邀請的句型: (你能來參加我的聚會嗎你能來參加我的聚會嗎?)Can

17、you come to my party? Could you come to my party?Would you like to come to my party?接受邀請接受邀請:Sure, Id love/like to.拒絕邀請拒絕邀請:Im sorry, I cant. I have to/Im V-ingwatch TVon the weekendmy cousin visit grandparentspractice the violin1. A: What are you going to do on Saturday? B: Im not sure. I might _p_

18、r_a_c_t i_c_e_t_h_e_v_i_o_l_i n_._2. A: What are you planning to do after school? B: I dont know. I_mig_ht _w_a_t_c_h_T V_.Complete the answers with might and one ofthe phrases in the box.3a3. A: When will you finish the science homework?B: _On_t_h_e w_e_e_k_e_n_d_.4. A: Who are you going to the mov

19、ies with? B: My_c_o_u_s_in.5. A: Are you free to come to my place on Saturday?B: _No_. _I_mig_h_t_v_i_s_it_ _ _rga_n_dp_a_r_ents_.1. Inviting: (can / play tennis) Can you come to play tennis?Accepting: S_u_r_e_,_t_h_a_t_s_o_u_n_d_s_g_r_e_a_t_.Complete the sentences below. Use the words inbrackets to

20、 help you.3binvite v.邀邀請請 invite sb. to do sth.accept v. 接接受受2. Inviting: (would like to/ go to the movies) Reason: (might have to) W o_u_ld y_o_u li_k_e_t_o_g_o to t_h_e_mo_v_ie_s_?Refusing: I_m a_f r a_i_d n_o_t ._I h_a_v_e_t_o_o_m u_c_h h _ o _ m e _ w _ o _ r _ k t_o_d_o_.refuse v. 拒拒絕絕 refuse t

21、o do sth.3.Inviting: (can/hang out with us tonight) Reason:(must) C_a_n y_o_u h_a_n_g_o_ut _w_i_t h u_s_t_o_n_i_g_h_t ?Refusing: N_I , o c_a_n_ t_._I_m u_s_t_f_i n_i_s_h_m y h_o_mewo_r_k_.4. Inviting: (would like to / come to my birthday party)_Wo_u_ld y_o_u li_k_e_t_o_ _co_me_t_o m_y b_i r_t_h_d_a_

22、y_ party?Accepting: S_u_r_e_,_I_d_l_o_v_e_t_o_.Write down everything you have to do nextweek. Choose a day and time to have a party.Then invite classmates to your party.A: Can you come to my party? B: When is it?A: Next week, on Thursday night.B: Im sorry. I have to study for a math test.3cWhat do y

23、ou usually do on weekends?What activities do you do on weekends?What weekend activities do you do? have to 不得不得不不A: What do you have to do this weekend? B: I have tocolorful weekend activitiesgo shoppinggo skateboardingplay soccergo to the cinemaplay the pianocolorful weekend activitiesclimb mountai

24、nsgo to a partysurf the InternetA. When is todayC. What time is todayB. Whats todayD. What day is todayI. 選擇填空選擇填空。1.Jim Dplay soccer with his friend this weekend, because he is very busy.A. canB. cans C. canntD. cant2. Henry Chis homework this afternoon.A. have to doB. have to doingC. has to doD. h

25、as to doing3. D? Its October the 14th.2. 當然，我樂意去。當然，我樂意去。Sure, Id.love to1. 星期六你能來我的聚會嗎星期六你能來我的聚會嗎？_ C _ a _ n _ you come to my party on Saturday?II. 根據(jù)課本內(nèi)容根據(jù)課本內(nèi)容, 完成下列句子完成下列句子。3.3.對不起，我必須為數(shù)學考試而學習對不起，我必須為數(shù)學考試而學習。Sorry, I _m u_s_t s t_u_d_y_ _f_o_r_ a math test.4.4.明天晚上你能去看電影嗎明天晚上你能去看電影嗎？_C_a_n_ you _g_oto the movies _t_o_m_o_r_r_o_wnight?5.5.當然可以，聽起來很棒當然可以，聽起來很棒。_S_u_r_e_ , that _s_o_u_n_d_s_ _g_r_e_a_t .6.6.恐怕不行，我得了流感恐怕不行，我得了流感。Im _a_f_r_a_i d_ not. I have the _f_l u.7