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Could you tell me his address？请你把他的地址告诉我好吗？
3。回答由may引起的问句时，答语常避免用may这个词，以免显得不客气；回答由must引起的问句时，否定答语不能用mustn’t；回答can引起的问句时，肯定回答和否定回答不一样，注意can表示“可能”的情况。
4。用于对当前发生的事情或情况的揣测时，may（might）可表示一件事或许会发生，或是某种情况可能会存在，只用于肯定句和否定句中，若用于疑问句，则须用can（could），而否定句可用can’t或couldn’t； 表示惊异、怀疑、不相信等态度，must表示揣测意为“必定”、“一定”，只用于肯定句中；对已经发生过的事情的揣测，要用“may/must ＋ have ＋ 过去分词”，“can/may not＋have＋过去分词” 等形式。
Liu Juan cannot be at home。 I saw her in the reading…room a moment ago。刘娟决不可能在家里，我刚才还看见她在阅览室里。
Can he have left？ His bag isn’t in the room。难道他走了吗？他的包不在屋里了。
You must be joking。你一定是在开玩笑。
5。must当意为“必须”，“应该”时，若说明过去的事，通常不用must而用had to，但在间接引语里往往用must。
I have to go to bed now； for Mother asks me to do so。我必须上床了，因为妈妈要我上床。
I told him that he must make a decision。我对他说了他必须做出决定。
6。would和used to 都有“过去常常”之意，但would只接表示动作的动词，不接认识或状态的动词，would主要是表示过去的习惯行为。used to 既可跟表示动作的动词，又可接表示认识或状态的动词，在时间上主要是同现在相比，说明“过去常常做某事，但现在不这样做了”。
She would come and help me with my homework。她总是来帮助我做作业。
He used to be a teacher till he turned writer。他一直做教师，直到成为作家。
7。情态动词will和shall在疑问句中，表示说话人向对方征求意见或向对方请示。但will只用于第二人称，shall用于第一、三人称。
Why won’t you go with us？你为什么不愿意和我们去？
If you work hard； you shall have a holiday on Friday。你如果工作努力，周五就可以放假了。
8。情态动词should意为“应该”，当表示“过去应该做而实际上未做”时，应采用“should have ＋ 过去分词”的形式，表示一种责备的口气；当表示“过去不应该做而实际上已经做了”时，应采用“shouldn’t have ＋ 过去分词”的形式，也表示一种责备的口气。
This wall shouldn’t have been painted yellow。这堵墙不应该漆成黄色。
9。need和dare作为情态动词，多用于疑问句、否定句中（dare还可以用于条件句中）。need和dare也可作实义动词；有第三人称、单复数、后面加带to的动词等特性。
She needn’t leave her house at seven every morning。
她没有必要每天早晨在7点离开家。
If you dare speak to me like that again； I’ll ask you to get out。你敢再这样和我讲话，我就请你出去。
Unit 13 The water planet单元同步小测试
一、单项填空（共15小题，每小题1分，满分15分）
从A、B、C、D四个选项中，选出可以填入空白处的最佳选项。
1。Did you get much from your holiday？
A。 honor B。 benefit C。 reward D。 prize
2。The river water goes 350 kilometers out to seA。
A。 pure B。 new C。 sweet D。 fresh
3。He was absorbed a book and didn’t hear your call。
A。 to B。 in C。 with D。 at
4。A left…luggage office is a place where bags be left for a short time； especially at a railway station。（NMET2003）
A。 should B。 can C。 must D。 will
5。She spoilt her new shoes in the rain。
A。 pour B。 poured C。 pouring D。 pours
6。Six players can a volleyball team while a football team is eleven players。
A。 make up； made up B。 make up of； made up
C。 make up； made up of D。 make up of； made up of
7。Goats eat food they can find。
A。 what B。 which C。 bad D。 whatever
8。 I were in his place； I would not go。
A。 Even B。 Ever C。 Though D。 Even if
9。I took the medicine； but it didn’t have any on me。
A。 effect B。 answer C。 cause D。 affect
10。His coming our happiness。
A。 added B。 added up C。 added to D。 added for
11。It’s secret to us how he to keep out of debt。
A。 has B。 has done his best C。 has tried D。 has managed
12。If； water can be changed into vapor。
A。 heating B。 heated C。 hot D。 hotted
13。This story； besides many other interesting ones； in the book。
A。 is B。 are C。 has D。 have
14。They say your report doesn’t the fact。 But I don’t them this point。
A。 agree to； agree with； at B。 agree on； agree to； on
C。 agree on； agree on； on D。 agree with； agree with； on
15。He to be there； but he sat there calmly as if nothing。
A。 happened； had happened B。 happened； had been happened
C。 happen； was happened D。 has happened； was happening
二、完形填空（共20小题，每小题1。5分，满分30分）
阅读下面短文，掌握其大意，然后从16—35各题所给的A、B、C、D四个选项中，选出最佳选项。
We had just taken off from Athens and found ourselves under the control of two hijackers （劫机者）。
I was 16 serving the first…class passengers 17 I was forced against the door。 18 kicked me in the chest； and I 19 a gun at my head。
Two men； very excited； were 20Arabic at me。 I said； “I can speak 21；” one of the hijackers replied in 22 German； “Open the door。 We come to 23。” The other was holding some grenades （手榴弹）； the pins （弹栓） 24 and bitten between his teeth。
I 25 the key to the driving room； and the hijackers started 26 and kicking at the door。 “Captain；” I shouted； “Open up！” Suddenly the 27 flew back； knocking a grenade pin out of the hijacker’s 28。 Instinctively （本能地） I picked it up and 29 it back between his teeth。
In the room they said； “Beirut； Beirut；” but they spoke almost no English。 I was translating everything 30； and the hijackers were beating the flight engineer with a pistol （手枪）。 Captain John Testrake said； “OK； we’re going to Beirut； but we 31 get flight clearance。”They said； “No。 You fly to Beirut with a map。” 32。 We went into a 180…degree turn； and 33one hijacker held his pistol。
The crew wanted to see if we had enough fuel to make Beirut； but the hijackers said； “It doesn’t matter。 Go until the fuel runs out。”Every time copilot Philip picked up a 34； they frightened him with a gun。 I was crying and shaking； and the German…speaker said； “What are you 35about？ I’m not going to hurt you。”
16。A。 seldom B。 then C。 now D。 usually
17。A。 after B。 before C。 when D。 while
18。A。 Someone B。 The hijackers C。 One hijacker D。 A passenger
19。A。 watched B。 found C。 glanced D。 felt
20。A。 translating B。 shouting C。 writing D。 calling
21。A。 German B。 English