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Unit 17 The missing necklace
一、本单元知识目标
1.掌握以下单词及用法：
steal, shoot, detective, thief, notice, robber, escape, conversation, description
2.理解以下单词：
necklace, inspector, robbery
3.掌握以下词组及用法：
come down, hands up
4.掌握以下交际用语：
（1）Some has stolen my necklace!
（2）I heard him speak.
（3）Hands up!
（4）I’ll shoot anyone who moves.
（5）There’s no need to thank me.
（6）Can you remember anything else about him?
（7）Come down, Polly!
5.语法
The Attributive Clause 定语从句
二、本单元课文难点讲解
第65课重点例句及相关知识的分析
1. Someone has stolen my necklace. 有人偷走了我的项链.
（1） someone = somebody 某人、有人、属于不定代词，只有单数形式。
（2）steal偷，窃取，在这里作及物动词。例如：He stole a watch from the shop.
（3）steal还可以作不及物动词。例如：It is wrong to steal.
2． Hands up! I’ll shoot anyone who moves!
Hands up的意思是“举手”。Hand和不同的介、副词放在一起具有不同的含义，要注意总结。例如：
hand in 上交，交给 in hand 在手中、在手头
hand down 传下来，公布 hand on 传给，传下来
hand out 分发，提供 hand over 传（某物）给某人，交出
第66课重点例句及相关知识的分析
1．Who would you ask for help if you were robbed？
（1）在本句中，would ask并非过去将来时，were并非过去时，而是一种虚拟语句表示一种不大可能发生的假设）的表现形式。
例：If I were you，I would tell the truth．如果我是你，我就会讲实话了。（但是我不是你）
（2）ask（sb）for help（向……）求助。
（3）rob（动词）抢劫、剥夺，其常用句型是rob sb. Of sth．抢去/剥夺走某人的……
例：That bank was robbed yesterday. 昨晚那银行被劫。
robber（名词）劫贼，robbery（名词）抢劫。
2．There is no need to thank me. 不用谢我。
There is（no）need to do sth．= have（no）need to do sth．表示必须/不必做某事。need在句中作名词表“需要；缺少，贫困”的意思。也可以作及物动词或情态动词，表“需要，必须”的意思。但需要注意的是：
（1）need作情态动词只用于否定句和疑问句，通常不用于肯定句。
（2）didn’t need to do表示“不需要做某事”，而事实上也没有做；needn’t have done则表示已经做了某事，而事实上“不需要做”，是虚拟语气用法。例如：
（1）He felt the need of a better education．
（2）She helped me in my hour of need．
（3）He needs a new coat．
（4）Need they have sold the farm？
3．Jim noticed it about an hour ago．
notice多用作及物动词，意为“看到；注意到”，可接名词、代词及that从句作宾语。另外，还可以用于notice sb．do sth．／doing sth．结构，其中不带to的不定式作宾补，表示动作已经发生；V-ing作宾补，表示动作正在进行。试比较：
I noticed him dig a hole in the wall．我注意到他在墙上挖了一个洞。
I noticed him walking towards the office．我注意到他正朝办公室走来。
4．But when he went to feed her today, she’d gone.
本句中的’d是had，had gone是过去完成时。它相当于had disappeared，或was missing或was gone。
5. When was the last time you saw the parrot?
句中的time不是指时间，而是指“次数”。后面的you saw the parrot是定语从句，是省略了关系代词that的定语从句，用修饰time的。
例（1）The car which/ that my uncle bought last month is very fast.
（2）The house which/ that we live in is very old.
（3）Is that the parrot you are looking for？
第67课重点例句及相关知识的分析
1. I'm afraid your parrot has seen too many films about stealing．
句中too many是“许多、太多”的意思，其后接可数名词复数形式；too much也是“许多、太多”的意思，其后接不可数名词；much too是“很、非常”的意思，其后接形容词或副词。
例（1）There are too many books in your son's bag．
（2）She drank too much water．
（3）Big computers are much too expensive．
第68课重点例句及相关知识的分析
1．We have caught a man who matches Miss Shirley Brown’s description.
本句中的match是动词，是“与……相配、相符合”的意思。
match还能作名词，解释为“火柴、比赛”等。
description（名词）解释为“描述、形容”，动词是describe。
例：Can you give me a description of the thief?相当于Can you describe the thief?
三、本单元词语辨析
1. steal and rob
从意思上讲steal表示偷窃的意思。而rob表示抢劫的意思；从搭配上来讲，steal sth from sb/sth;而rob则用rob sb/sth of sth; 例如：
He stole money from the rich to give it to the poor.
They robbed the bank of one million dollars.
2. see，look，watch，notice
在英语中，see，look，watch，notice都有“看”的意思，要注意他们的区别。
see意为“看到”，表示视觉器官有意识或无意识地看到物体，强调“看到”的结果。
look意为“看”，表示有意识地观看，强调“看”的动作。
watch意为“观看，注视”，指以较大的注意力观看。
notice意为“看到，注意到”，指有意识的注意，含有从不注意到注意的变化的意义。又如：
（1）What can you see in the picture？在图画中你能看到什么？
（2）Look! How happily they are playing！看！他们玩得多高兴啊！
（3）He’s watched TV for over two hours．他看了两个多小时的电视。
（4）He noticed a purse lying on the road．他注意到地上有个钱包。
3. Shoot, shoot at
shoot是及物动词，意思是“射中，射死”，宾语多为人或动物等。而shoot at是一个动词词组，意为“向……射击”，至于射中或射死与否不得而知。如：
The man shot five birds in the forest．
那个人在森林里射死（中）了五只鸟。
The hunter shot at the bear．
猎人朝熊射击了。
They shot at the she－wolf， but didn't shoot her．
他们向那只母狼射击，但是没有射中／死。
4. Escape, run away
escape作“逃跑”、“逃脱”或“逃避”讲时，往往会有成功之意。如：
The old man escaped death．
那个老人死里逃生。
The thief escaped from prison．
那个小偷越狱了。
run away作“逃跑”、“跑走”讲时，往往强调动作。如：
Don't let him run away． 别让他跑了。
口语中escape和run away可以互用。
四、单元语法重点
定语从句（The Attributive Clause）
1. 定义：在复合句中，修饰某一名词或代词的从句。定语从句所修饰的词叫先行词，引导定语从句的关系代词有that，which，who，whose，whom。
2．特征：关系代词放在先行词和定语从句之间，起联系作用，在定语从句中可作主语、宾语等。如：
（1）The one（that）you gave me for my birthday．
（2）Did you see the person who／that stole it？
（3）The book that／which I'm reading is called The Great Escape．
（4）Who is the man that is reading newspapers over there？
注意：1）关系代词which只能修饰表示“物”的先行词，如例（3）；而关系代词that既能修饰人，也能修饰物，如上面4个例句。
2）如果先行词是不定代词，关系代词用that而不用which，如例（1）。
3）如果关系代词在定语从句中作宾语，关系代词在从句中常省略，如例（1）。
3．引导词：引导定语从句的词有关系代同that，which，who（宾格whom，所有格whose）和关系副词where，when。关系代词和关系副词放在先行词和定语从句之间，起联系作用，同时又作定语从句的一个成分。
（l）由关系代词引导的定语从句：
l）that在从句中可作主语或宾语，指物或指人。
例A plane is a machine that can fly．
Who is the man that is reading a book over there?
2）which在从句中可作主语或宾语，指物。
例They planted the trees which didn't need much water．
The fish which we bought were not fresh．
3）who，whom在从句中分别作主语和宾语，指人。
例The boy who broke the window is called Tom．
Mrs Read is the person to whom you should write．
（2）由关系副词引导的定语从句：
l）when指时间。
例I’ll never forget the time when we worked on the farm．
2）where指地点。
例This is the house where we lived last year．
注意：1．that和which在从句中作主语时，不能省略；作宾语时，在口语和非正式文体中经常省略。whom也常可省略。
2．关系代词that在定语从句中作介词的宾语时，介词不能放在它的前面，只能放在从句中有关动词的后面。
例The village that she lives in is twenty kilometres away．
五、同步练习
单项选择
1． It is the young man _______ looked for _______ caught the murderer.
A. that …who B. that …they C . they …that D they…which
2． Is this factory _______ we visited last year?
A. where B in which C the one D at which
3． The book, the cover _______ is broken, is not mine.
A. of it B for C whose D of which
4． This is Mr Smith, _____ I think has something interesting to tell you.
A . who B whom C. that D. x
5． Who _______ has seen the TV film doesn’t admire it?
A . that B who C which D as
6． You can never imagine what great trouble I have had ________ the patient who received a serious wound.
A. treat B. to treat C treating D treated
7． This is the last time _________ I shall give you a lesson.
A. when B that C which D in which
8．I don’t like the way ________ you laugh at her.
A . that B on which C which D as
书面表达
请按照格林一家的旅行说明，在下面叙述旅行过程的短文中填上适当的单词。（每空不限填一个单词）
The Greens left Beijing on a No.CA 907 plane at 1 to eight, November 14. They 2 in Moscow at 3 past eleven. Then they changed Flight No. BA 347. The plane 4 Moscow at ten past four 5 . They arrived in London at half past ten in the night.
六、同步练习答案及讲解
单项选择
1. 答案是C。本题考查了定语从句和强调句式。强调句式的结构是 “It is + 强调部分 + that/who….”。they looked for前省略了关系代词that,因为先行词the young man 在从句中做looked for的宾语。强调句It is the young man who/that caught the murderer.本句意思是“是那个他们寻找的年轻人抓住了杀人犯”。
2. 答案是C。从句前省略了关系代词that/which。题目如改为Is this the factory ________we visited last year? 空格处应该用which 或 that。
3. 答案是D。先行词the book 代入从句应该是 the cover of the book is broken.相当于whose cover。
4. 答案A.
5. 答案A. 先行词是who，可以指人，但这里为了避免重复，不用who，而用能指代人的that。
6. 答案是C。 迷惑的答案是D，同学们容易根据had确定用过去分词。而做好这题， 关键是知道句型have trouble(difficult) doing sth 做某事有困难。定语从句部分是I have had (great trouble)treating the patient.而patient 后又有一个定语从句。
7. 答案是B。这里的time不指时间，而是次数。所以用that引导。
8. 答案是 A。 也可以不用任何引导词。
书面表达
1.a quarter 2.arrived 3.half 4.left 5.in the afternoon
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