人教版八年級英語下冊 Unit8第3課時 教學課件PPT初二公開課

1、Unit 8 Have you read Treasure Island yet?Section A Grammar Focus-4c初中英語 八年級下冊 RJLearning goalsNew words: fiction, technology, FrenchExpression: science fictionSentences: Have you read Little Women yet?Yes, I have./No, I havent. Has Tina read Treasure Island yet?Yes, she has. She thinks its fantastic

2、. Have you decided which book to write about yet? Yes, I have. Ive already finished reading it. It was really good.Warming upA short video to understand the present perfect.Have you read Little Women yet?Yes, I have./No, I havent.Has Tina read Treasure Island yet?Yes, she has. She thinks its fantast

3、ic.Have you decided which book to write about yet?Yes, I have. Ive already finished reading it. It was really good.Find the present perfect tense.Grammar FocusHow is the present perfect tense formed?have/has + 過去分詞Have you read Little Women yet?Yes, I have./No, I havent.Has Tina read Treasure Island

4、 yet?Yes, she has. She thinks its fantastic.Have you decided which book to write about yet?Yes, I have. Ive already finished reading it. It was really good.What adverbs are often used with the present perfect?Already and yet.Have you read Little Women yet?Yes, I have./No, I havent.Has Tina read Trea

5、sure Island yet?Yes, she has. She thinks its fantastic.Have you decided which book to write about yet?Yes, I have. Ive already finished reading it. It was really good.含現在完成時的句子 如何構成一般疑問句？將助動詞have/has 放在主語之前。Have you read Little Women yet?Yes, I have./No, I havent.Has Tina read Treasure Island yet?Ye

6、s, she has. She thinks its fantastic.Have you decided which book to write about yet?Yes, I have. Ive already finished reading it. It was really good.一、現在完成時的基本結構和主語一致現在完成時由“助動詞 have/has + 過去分詞”構成， 其基本句式結構為：have/has 常可縮略為 -ve/-s 肯定句：主語 + have/has + 過去分詞 + 其他.I have seen this film. 否定句：主語 + have/has n

7、ot + 過去分詞 + 其他.I have not seen this film.Presentation現在完成時態(tài)（1） 一般疑問句：Have/Has + 主語 + 過去分詞 + 其他? 肯定回答：Yes, 主語 + have/has. 否定回答：No, 主語 +havent/hasnt. Have you seen the film?Yes, I have. / No, I havent.have not = havent; has not = hasnt二、過去分詞的變化1. 規(guī)則變化（與動詞過去式規(guī)則一樣，此類稱作規(guī)則 動詞）重讀閉音節(jié)以一般在詞尾直 接加-ed以不發(fā)音的e 結尾的，

8、加-d以“輔音字母+ y”結尾的變y 為i加-ed一個輔音字母 結尾的，雙寫 這個輔音字母后加-edworkworkedsliceslicedstudystudiedstopstopped2. 不規(guī)則變化（此類稱作不規(guī)則動詞，有很多）原形過去式過去分詞bewas/werebeenhavehadhadchoosechosechosenputputputrunranrun參看課本P136-137 Irregular Verbs（不規(guī)則動詞表）三、現在完成時的用法1. 表示過去發(fā)生或已經完成的動作對現在造成的影響 或結果。常和 just（剛剛）、already（已經）、yet（還，仍然）、ever（

9、曾經）、never（從未）、before（以前）、so far（到目前為止）等連用。 Have you had your breakfast yet? Yes, I have. Ive just had it.Have you ever heard of this song?No. Ive never heard of it before.Julia has collected over 100 beautiful hair clips so far.I had breakfast.Im not hungry now.pastpresentI have already had breakfas

10、t.（早餐過去吃的，現在不餓。）圖示法表示現在完成時用法1：表示過去發(fā)生或已經完成的動作對現在造成的影響或結 果；2. 現在完成時還可以表示過去某一時間開始并一直持續(xù)到現在的動作或狀態(tài)，常與“for + 時間段”或 “since + 時間點 / 從句”連用，這時要用延續(xù)性動詞。They have worked in this company for 30 years.He has been in the army since 2016.（錯：He has joined the army since 2016.）【特別提醒】如果要對 for 或 since 短語提 問，疑問詞用 how long

11、。How long have you lived in this area?For at least 10 years.圖示法表示現在完成時用法2：表示過去某一時間開始并一直持續(xù)到現在的動作或狀態(tài)。I moved here in 1990.I still live here.pastpresentI have lived here for 30 years.（30年來一直生活在這里）四、already 與 yet 在現在完成時中的用法辨析yet常用于否定句或疑問句句 末。用于表示某事尚未發(fā) 生或某情形尚未出現，或 用于詢問某事是否已經發(fā) 生。He hasnt finished the book

12、 yet.Have you seen him yet?already常用于肯定句中，用于強 調某事已經開始出現；也 可用于疑問句中，表示因 某事的發(fā)生早于預料而感 到吃驚。They have already known each other. Have you eaten all that food already?五、現在完成時 VS. 一般過去時1. 現在完成時表示過去發(fā)生的某一動作對現在造成的 影響或結果，強調的是現在的情況，因此不能和表 示過去的時間狀語連用。I have already done my homework.（不能用last night等）Ive been to Pari

13、s before.（不能用last year等）2. 一般過去時只表示過去的動作和狀態(tài)，與現在無關。 可以和表示過去的時間狀語連用。I did my homework last night.When did you go to Paris? （when一定不要和現在完 成時連用）3. 日常對話中通常兩種時態(tài)配合使用，開始提到一件 事做沒做或發(fā)生過時用現在完成時，說起這件事具 體情形時用一般過去時。Have you been to Japan?Yes, I have. I went there last year.Who did you go with?4a Use the words in b

14、rackets to complete the conversations.Tip: Find the key words to identify which tense to use.A: Would you like something to drink?B: No, thanks. I_v_e ju_s_t_d_r_u_n_k_s_o_me_te_a. (just/ drink some tea)A: I heard you lost your key. H_a_v_e y_o_u_f_o_u_n_d_i_t _y_e_t ? (find)B：No, not yet.3. A: Do y

15、ou know when Tom is leaving?B:. (already /leave)A: When? (leave)B: This morning.4. A: Is your sister going to the movies with us tonight?B: No. (already / seethe film)H_e h_a_s _a_lr_e_a_d_y_l_e_ftd_i_d_h_e le_a_v_eS_h_e h_a_s_a_lr_e_a_d_y_s_e_e_n_t_h_e_f_i_lm5. A: What do your parents think about o

16、ur plan?B: I. (not / tellthem / yet)h_a_v_e_n_o_t_/h_a_v_e_n_t _to_l_d_t_h_e_m y_e_t4b Fill in the blanks with the correct forms of the words in brackets.Tip: Find the key words to identify which tense to use.Sally _l_o_v_e_s_(love) reading. In the morning, she reads thenewspaper and in the evening

17、she reads books. She h_a_salready r_e_a_d (read) more than 100 different fiction n. 小說 science fiction 科幻小說（或影片等）books! Her favorite kind of books is science fiction. Shen. 科技；工藝is interested in science and technology and loves toimagine what the world w_i_ll_b_e(be) like in 50 years. She _f_i_n_is_

18、h_e_d_ (finish) reading a book about robots last week and w_i_ll_wri_te_ (write) a book report about it nextn. 法語week for her French class. Every time she is in the library,Sally looks at the many books sheh_a_s_n_t_r_e_a_d_(not read)cant wait to do sth.迫不及待做某事 yet and she cant wait to read them!A:

19、What do you think of them?B: Well, I think Harry Potter was exciting, but Tom Sawyer was a bit boring.你覺得它們如何？4c Complete the chart with information about you and a friend.A: What books have you already read?B: Ive already read Tom Sawyer and Harry Potter.YouYour friendCommentsBooks I have already r

20、eadMovies I have already seenSongs I have already heardInstructions on 4c:First, fill in the first column according to actual situation.Then, ask and answer in pairs to fill the second and the third columns.Now write a short paragraph using the information in the table and report to class.Example:Iv

21、e already read the book . I think its . My friend has read a book called . He/She thinks its and he/she1. (安徽中考) Its ten years since we came here.How time flies! Wein China for so long.DA. workB. workedC. will workD. have worked(2021安徽中考) Our computer is working again!Yes. Our IT teacher Ait. It too

22、k him about an hour.A.has fixedB.will fixC.is fixingD.was fixingExercises一、單項選擇拍中國) is wonderful. So far, Iit three times.A. watchedB. will watchC. have watchedD. watch3. (2021河北中考) William Csix books, and all of them are bestsellers.A. will writeB. is writingC. has writtenD. was writing4. (2021云南中考

23、) The documentary Aerial China(航CA. yet; yetC. already; yetB. yet; alreadyD. already; already6. (2021武漢中考) What good books did you readrecently? ITales of China since last year, andnow the third time.A. readB. am readingC. have readD. will read5. Has your sister finished reading B? Yes. She has fini

24、shed.C3. Tom wont go to the cinema with us because healready(see) the film.二、用所給單詞的適當形式填空1. She _h_a_sn_t_r_e_ad(not read) the book yet.2. H_a_v_eh_a_sse_e_nyou _d_e_c_i_d_ed(decide) which book to buy yet?4. David hasnt _f_i_n_is_h_e_d_(finish) _r_e_a_d_in_g(read) Harry Potter yet.We h_a_v_ejust cle

25、aned(clean) the classroom. I l_e_n_t (lend) my bike to her yesterday, but she h_a_s_n_t_g_i_v_e_n_ (not give) it back to me yet.(2021南京中考改編) I saw Julia in April and I h_av_e_n_t_s_e_e_(not see) her since then.三、按要求改寫句子，每空一詞1. She has already written the music. (改為一般疑問句). Ha_s she written the music?y_e_tThey studied English 2 years ago. (用 since 2 years ago改寫)They h_a_v_e_studiedEnglish sinc