1. The necklace The necklace

2. continue ① vt/vi continue doing sth =go on doing sth continue to do sth= go on to do sth --- Mary had lunch and then continued to do her work. --- We continued talking till late. --- They continued to walk after a short rest.

3. 2. recognise/know Recognise 认出 / 承认 Know 知道 / 认识 --- I know him, but when I saw him last night, I could hardly recognise him. --- She really _knows_ theory comes from practice --- They all recognise him to be a great leader

4. Language Record Translate them into English: 1. 拜访某人 2. 日夜工作 3. 还清债务 4. 解开谜团 call on somebody work day and night pay off the debts solve the mystery

5. 5. 接受邀请 6. 做讲座 7. 由于十年辛劳 8. 把故事表演出来 9. 在政府部门工作 10. 在回家的路上 accept the invitation give a lecture because of ten years of hard work act the story out work in the government on the way home

6. Grammar 在现在时态中的推测 一定 可能 一定不 （１） --He is ill. （２） --she is dancing now.. （３） --Jim likes English. must may/might can’t He must/may/might/can’t be ill She must/may/might/can’t be dancing now Jim must/may/might/can’t like English.

7. 对过去情况的猜测 一定做过某事 可能做过某事 一定没有做过某事 must have done may ／ might have done can’t /couldn’t have done

8. 1. － He cleaned the classroom yesterday.. 2. --- He has cleaned the classroom.. 3. － Jim played basketball with his friends. 4 --- She has been ill for a week.. 5.--- She was ill last week.. ---He must have cleaned the classroom yesterday --- He must have cleaned the classroom --- Jim must have played basketball with his friends. --- She must have been ill for a week --- She must have been ill last week 对下列句子用表示推测的情态动词进行句子转换

9. ( 用 must/ may/can’t 造句） 1. 他一定在教室学习．. 2. 这本书可能值１５元． 3. 她昨天一定很忙．. 4. 你刚才一定没有从他那儿借过笔． 5. 他可能是在去年结婚的 (get married) ． He must be studying in the classroom This book may/might be worth 15 yuan. She must have been very busy yesterday You can’t/couldn’t have borrowed a pen from him right now. He may have got married last year.

10. 用 must or can’t 重写句子 1.I am pretty sure he is not at home.. 2. I am sure they earn a lot of money.. 3. I am sure they are not very rich.. 4. I am sure he is terribly busy.. 5. I am sure it is very interesting. ----He can’t be at home./ He must be out ---They must earn a lot of money --- They must be poor./ They can’t be very rich --- He must be terribly busy ---It must be very interesting

11. . 把下列句子改成反意疑问句 ． １． He can’t be at home, ＿＿＿＿ ? ２． They must earn a lot of money, ＿＿＿＿ ? ３． They can’t be very rich, ＿＿＿＿ ? ． -------I am sure they are not very rich ------I am sure they earn a lot of money ． ------- I am sure he is not at home ． is he don’t they are they

12. ４． He must be terribly busy, ＿ ＿＿＿ ? ． ５． It must be very interesting, ＿ ＿＿＿ ? ------I am sure he is terribly busy ------I am sure it is very interesting isn’t he ___ isn’t it