选择型完形填空常见解题方法
1.验证法。基础好、语感强的读者在阅读第一遍时，往往能顺口将短文中一些空白处被挖掉的词默读出来，可顺手用铅笔将其填在空白处，然后在解题时只须参看该题的四个选项，验证一下是否有这个词。这类空白往往与词组的固定搭配，或上下文的相互提示有关。
2.排谬法。所谓排谬法就是将某一空白的四个选项中有明显错误的选项排除。用此法解题时，应主要从是否明显违背短文的中心思想、是否有语法错误（时态、语态、主谓一致、词性等等）、是否符合英语语言习惯等方面考虑。
3.推理法。有些题的四个选项的语法或语言习惯均无明显错误以致难以排除错误，在此情况下可用推理法。一般可从四个方面对选项进行推理判断：①围绕中心思想，根据前后句、上下文以及段落之间的逻辑关系推理判断。特别需要注意那些表示转折或起到承上启下作用的连词和副词。②根据故事情节发展、人物的性格、文章的深层含义做进一步推断。③根据自己的生活常识和经验，对某些方面知识的了解来进行判断。④根据词语本身含义的差异或其在句子结构中作用及用法的不同进行判断。
4.对比法。有的题在排除错误的选项后，往往剩下两个选项，无论从语法还是语言上考虑，都找不出错误来，且词义接近，差别甚微，因此难以做出选择。遇此情况，可将这两个选项分别放入原句的空白处进行比较，看哪一个更接近原文的中心思想，更合乎语言习惯，更合乎常理及逻辑，据此选择最佳答案。
阅读理解
Passage 1
Mr. Clarke was born in a small town of England.When he finished middle school， he found work in the police station and he has worked there for fortytwo years and hell retire （退休） this autumn.He tried to work hard in the past fortytwo years but he wasnt a lucky man and never caught a thief （贼）.① He was often sorry for it.
Last weekend， when Mrs. Clarke was going to cook supper， she found there was no sugar.So she asked her husband to buy some in the shop near their house.He came into the shop and found a young man steal （偷） some money from a womans bag.He ran to the thief quickly， but the young man found it and ran away at once.Mr. Clarke ran after him.The thief ran into a blind alley （死胡同） and Mr. Clarke caught him at last.
“Please give me a chance （机会）， sir.” said the young man.“I never stole before.”
“Who will give me a chance？” said Mr. Clarke.“Ill soon retire and Ive caught a thief for the first time！”②
译注
① He tried to work hard in the past fortytwo years but he wasnt a lucky man and never caught a thief.
在过去的四十二年间，他努力工作，但他是一个不够幸运的人，从来没抓到一个贼。
②I ll soon retire and I ve caught a thief for the first time！
我不久就要退休了，还是第一次抓住一个贼！
根据短文内容，选择最佳答案。
1.Mr. Clarke is .
A.American B.Australian
C.English D.French
2.Mr. Clarke never caught a thief in fortytwo years because .
A.there were no thieves in the town
B.he didnt work hard at all
C.he wasnt lucky enough
D.he wasnt a competent （称职的） policeman
3.Mr. Clarke ran to .
A.catch the young man
B.help the woman
C.buy some sugar
D.pick up the money
4.The young man ran into the blind alley because .
A.he lived there
B.he had been there
C.his friends were waiting for him there
D.he didnt know the town well
5.Mr. Clarke caught the thief because .
A.the young man had no place to run
B.he became much stronger than before
C.the young man was afraid of policemen
D.the young man wanted to give him a chance
6.Which of the following is TRUE？
A.Mr. Clarke will let the young man go.
B.Mr. Clarke will take the thief to the police.
C.The young man will kill the old policeman.
D.The young man will run away again.
Passage 2
The police find most criminals （罪犯） because somebody tells them who the criminals are.They find other criminals by using science and their computers.When there is a bank robbery （抢劫）， the police first look through their computers for the names of bank robbers （盗贼） they know about.① Then they go and talk to any of these robbers who are not in jail （监狱）.They ask them where they were at the time of the robbery.If any of these people cannot give a good answer， the police will use science to find out if one of them is the robber.
Many criminals leave something of themselves at the place of the crime like a fingerprint or a hair.② Or they take something away on their shoes or clothes， like dirt or the victims hair.If they leave behind some of their blood or a hair or a piece of skin， it will have their DNA inside it.
Everyones DNA is different in the same way that their fingerprints are different.③ Therefore， if a criminal cuts himself during a robbery or leaves a hair， or even a small piece of skin， scientists can find out what his DNA is.The police can then ask the person who they think is the robber to give them one of his hairs or some blood and see if it has the same DNA.Many criminals are in jail today because of this kind of evidence （证据）.
译注
①When there is a bank robbery， the police first look through their computers for the names of bank robbers they know about.
当发生一桩银行抢劫案时，警察首先通过电脑查阅到他们知道的银行盗贼的名字。
②Many criminals leave something of themselves at the place of the crime like a fingerprint or a hair.
许多罪犯在犯罪的场所留下一些像指纹或一根头发之类的自己的东西。
③Everyones DNA is different in the same way that their fingerprints are different.
每个人的DNA都不同，正如他们的指纹也不同一样。
根据短文内容，判断下列各句正（T）误（F）。
1.Usually the police find a criminal because someone tells them who did the crime.
2.The police dont usually ask criminals who are in jail about a crime because they are not on the computer.
3.Criminals usually take something away from the place of a crime with their fingers.
4.The most useful evidence that criminals leave at the place of their crimes is things with their DNA in them.
5.The story is about leaving fingerprints on objects.
Passage 3
There was a robbery near Harrys home one night.Harry was looking out of his window at that time.He saw a robber run out of a shop and he saw the robber take off his mask （面具）① .He saw his face.
Harry told his father what he had seen.When the police came， Harry and his father went to talk to them.“I saw the robber.”Harry told the police，“I can describe him.He was about fifty years old.He had a big red nose.His ears were big.He was quite tall and thin.He had something wrong with his right leg.”
“How do you know that？” one of the policemen asked Harry.
“He limped （跛行）.” Harry said.
“What was he wearing？” the other policeman asked.
“He was wearing black trousers and a shirt.”Harry said， “His mask was a ladys stocking.His shoes were white sports shoes.”
“You are a very clever boy，”the policeman said，“Well done！Now we can send out a description of the robber.”②
The police did this and the next day they caught him.They put him in a line with some other men.They asked Harry to point him out.Harry did this easily.The police arrested （逮捕） the man.Then Harry went home with his father happily.
译注
①He saw a robber run out of a shop and he saw the robber take off his mask.
他看到一个盗贼从一家商店跑出来，并看到这个盗贼摘下了面具。
②Now we can send out a description of the robber.
现在我们能发送出对这个盗贼的描述。
根据短文内容填空，每空一词。
1.The robbery happened near home at .
2. Harry was looking out of his window and saw the robber run out of a shop.
3.Harry gave a of the robber， so the policeman him.