earrings earrings 耳环耳环necklace necklace 项链项链sasafe fe 保险箱保险箱pearl pearl 珍珠珍珠diamond diamond 钻石钻石belt belt 皮带皮带detective detective 侦探侦探1.The boy is a _. 2.He is trying to _ the girls purse. 3.The girl will report the _to the police.thiefstealtheft1.These men are _. 2.They are trying to _ the girl of her purse. 3.The girl will report the _to the police.robbersrobrobberyWhen the reporters saw Sadam, he was _.handcuffsin handcuffsSome important words.1 innocent( 名词 ) _2.crime(名词 “罪犯” )_3. solve( 名词 )_4. recent ( 副词 ) _5.spotlessly( 形容词 )_6. hesitate ( 名词 ) _innocencecriminalsolutionrecentlyspotlesshesitation7. admit( 过去式 ) _8. cheat ( 名词 ) _9. conclusion( 动词 ) _10. interview( 名词 ) _11. guilty ( 名词 ) _12. detective ( 动词 ) _13. no longer (同义词组 ) _admittedcheatconcludeinterviewguiltdetectnot. any longerExercisevUse the words in the box to complete the sentences below.behind bars jumps to conclusions the innocent insurance spotlesslythe guilty clues suspect1.A detective uses his eyes to look for _.2.Ken questioned Jill because she was a _.cluessuspectv3. Li is now _ .v4. Ken is a good detective. He never _.v5.In the case of the missing vase, ken finally found _ and protected _ .v6. The carpet in the room was _ clean.v7.Li bought _ for his vase. behind bars jumps to conclusions the innocent insurance spotlesslythe guilty clues suspectbehind barsjumps to conclusionsthe guiltythe insurancespotlesslyinsuranceHes Sherlock Holmes(夏洛克.福尔摩斯 )1 从事的职业 2 也 3 以两百万的价钱 购买 4 把展示给某人 5 寻找线索 6 一尘不染 7 否认做过某事 8 和相同1. work as 2. as well as 3.buy for two million yuan4. show sth. to sb. 5. look for clues 6. be spotlessly clean 7. deny doing sth. 8. the same () as9 武断下结论 10 不再 11 最后 12 承认做过某事 13 假装做某事 14 入狱 15 代替 16 监禁9. jump to conclusions 10. no longer 11. in the end 12. admit doing sth. 13. pretend to do sth. 14. go to jail 15. instead of 16. be behind bars 肯定结构：to + do否定结构：not + to do用法：动词不定式具有名词，形容词 和副词的特征，它在句中可充当主语 ，宾语，定语，表语和状语（一）作主语1.To learn English well is not easy.It is not easy to learn English well.2. To listen to his speech is a great pleasure.It is a great pleasure to listen to his speech.(二）作表语1.My job today is to cook lunch and do some cleaning.2.Our plan is to have a picnic in the morning.（三）作宾语1.He decided to buy some flowers for her.2.She wants to apologize for being late.3.Please dont forget to bring your medicine next time.(四）作定语1.I have many things to do today.2.She has something important to tell you.3.He is always the first one to arrive at the school every day.（五）作状语1.He has come to clean the carpet for us.2.My brother rode to his friends home to have a party.3.He is too young to lift the bucket of water.4.Are you old enough to join the army?5. I am glad to see you again.Exercises I.选择填空 1.We had no chairs _.A. sit B. to sit in C. be sit D. to sit 2. These are both very good. I can hardly decide _.A. which to buy B. which will buyC. what to buy D. what will buy 3.The boy was too frightened _ when he saw the dog.A. not to move B. to move C. so to move D. to be movingBAB4. He is _ the apples in the tree.A. too tall to reach B. to tall to reachC. tall enough to reach D. enough tall to reach 5.After working for more than one hour, they stopped _ .A.resting B. to have a rest C. having a rest D. rest 6. You _, as it is raining outside.A.had better not to go out B.had not better go out C. Had better to not go outD. had better not go outCBD7. _ the way to the bookshop was just what she wanted to know.A. How to find B. To find C. How find D. to talk with 8.He felt very lonely at night because he had nobody _ .A. to talk B. to talk about C. talking D. to talk with 9. Could you tell me _ a letter in English?A. when to write B. who to write C. how to write D. Wwhere to write 10.It was kind _ her home.A.of you taking B. for you to take C. of you to take D. at you takeADCCII.用动词不定式的正确形式填空 1.It is my job _ ( teach) you English. 2.They came here _ (see) you. 3.I want _ (go) over my lessons and I want you _ (do) so, too. 4.The man made up his mind_ (not sell) his bike. 5.I was very pleased _ (see) him back.to teachto seeto goto donot to sellto see6.Lets _ (go) and _ (have) a look at his baby. 7. I often see him _ (do) shopping in this shop. 8. She was invited _ ( give) a speech at this school. 9. Why not _ (do) it once more. 10. I am thirsty. Please get me something _ (drink).gohav edoto givedoto drink11.The question is difficult _ (a