Unit 9 课时3 Section B（1a-1d)【教案+学案】-【帮课堂】2022-2023学年八年级英语下册同步精品讲义（人教版）

Unit9 Have you ever been to a museum？ 课时3 Section B（1a-1d） Learning aims: 1. To know some famous places in China. 2. To listen for specific information. 3. To learn to use the present perfect tense. Have you visited…? Have you been to…? Have you seen…? 现在完成时（二） 含been, ever, never的现在完成时，been是be动词的过去分词，ever(曾经)，never(从不，未曾)一般作副词。 been在完成时中，常以have been的形式出现，常见的有以下几种用法： 考点1 have been to＋地点 have been to 曾经去过 现已回来 可接次数 He has been to Beijing 3 times. 他去过北京三次。 have gone to 到某地去了 尚未回来 通常不用 第一人称 She’s not here. She has gone to Qingdao.她不在这里，她去了青岛。 have been in/at 在某地呆了多长时间 常接时间段 He has been in London for half a year.他在伦敦呆了半年。 —Ben and Sue aren’t home，are they? —No. They ________ to London on business. A. have gone　　 　B. go C. have been D. will go 【答案】A 【解析】考查现在完成时。have gone to去了某地(没回来)，现在完成时；go一般现在时；have been to去过某地(已经回来了)，现在完成时；will go一般将来时。根据“No.”可知他们现在不在家，说明去了还没回来，用现在完成时have gone。 考点2 当have been to后面接副词，如here, there, home时，to要省略。变为have been here/there/home。 You said that Zhijin Cave is very beautiful.________ you ________ there？ A. Have；gone　　　 　B. Have；been C. Have；gone to D. Have；been to 【答案】B 【解析】have/has been to“去过某地(已返回)”；have/has gone to“去了某地(未返回)”。句意“你说织金洞很漂亮。 你去过那儿吗？”there前不加to。　 考点3 have been in＋组织，表示加入某组织。 He has been in the army for 3 years.他参军三年了。 考点4 have been＋adj./n.呈现……状态 The shop has been open for 10 years. 这家店营业十年了。 We have been friends since we were 5. 我们从5岁起就一直是朋友。 考点5 ever, never常与现在完成时连用，是现在完成时态的提示词。 ever adv.曾经；在任何时候 never adv.从未 —Have you ever been there？你曾去过那里吗？ —No, I have never been there before. 不，我以前从未去过那里。 Learn the Present Perfect Tense 1. 用法 肯定式 I/You/We/They have (not)finished the work. 否定式 He/She/It has (not)finished the work. 疑问式 回答 Have I/you finished the work? Yes, you/I have. No, you/I haven’t. Has he/she finished the work? Yes, he/she has.No, he/she hasn’t. have not 常缩略为haven’t has not 常缩略为hasn’t 2.构成： have(助动词) +V p.p has(第三