分析 短文主要內(nèi)容:這篇短文主要介紹了警察破案的一些方法,如:他們可以通過訊問在押的囚犯,以及罪犯留下的指紋,頭發(fā)及DNA等信息來確定罪犯的身份.
翻譯:警察找到大多數(shù)罪犯的方法是有人告訴他們罪犯是誰,他們找到其他的罪犯是運(yùn)用科學(xué)和電腦.當(dāng)有銀行搶劫案的時(shí)候,警方首先查閱電腦上他們所了解的銀行搶劫犯的名字,然后去和不在監(jiān)獄里面的搶劫犯交談.警察詢問他們搶劫案發(fā)生的時(shí)候他們在哪,如果沒有人能夠給出合理的回答,警察則會(huì)采用科學(xué)查出他們中是否有人是搶劫犯.許多罪犯會(huì)在現(xiàn)場留下指紋,頭發(fā)等.警察將會(huì)利用他們留下的血跡、頭發(fā)、一塊皮膚查出他們的DNA,然后讓嫌疑犯提供他們的頭發(fā)、血等來驗(yàn)證,從而找出真正的罪犯.
解答 51.細(xì)節(jié)理解題.本句意思是警方通常能找到罪犯,因?yàn)樗麄兪褂秒娔X.根據(jù)文中首句The police find most criminals (罪犯) because somebody tells them who the criminals are.可知警方通常找到罪犯的方法不是使用電腦,所以本句描述錯(cuò)誤.
52.細(xì)節(jié)理解題.本句意思是關(guān)于犯罪問題,警方通常不訊問在監(jiān)獄里面的罪犯,因?yàn)樗麄儾豢赡茏鲞@些事.根據(jù)文中句子When there is a bank robbery (搶劫),the police first look through their computers for the names of the bank robbers that they know about.Then they go and talk to any of these robbers who are not in prison (監(jiān)獄).They ask them where they were when the robbery happened描述,可知當(dāng)發(fā)生了搶劫后,警方首先查閱電腦上他們所了解的銀行搶劫犯的名字,然后去和不在監(jiān)獄里面的搶劫犯交談. 故本句描述正確.
53.細(xì)節(jié)理解題.本句意思是罪犯留在罪行發(fā)生的地方的最重要的證據(jù)是他們的DNA,根據(jù)短文后兩段描述,尤其是最后一句Many criminals are in prison today because of this kind of evidences,可知本句描述正確.
54.細(xì)節(jié)理解題.本句意思是在罪行發(fā)生后,罪犯通常只把鞋上面的一些東西帶走.根據(jù)文中描述If they leave behind some of their blood or their hair or a piece of skin,it will have their DNA inside it.So,if a criminal cuts himself during a robbery or leaves his hair,or even a small piece of skin,scientists can find out what his DNA is.可知可以作為證據(jù)的不只是罪犯鞋上面的東西,因此罪犯要帶走的不止這些東西,故本句描述錯(cuò)誤.
55.主旨大意題.本句意思是這個(gè)故事是關(guān)與銀行搶劫的.閱讀短文可知,這是一篇關(guān)于警察如何破案的短文,第二段和第三段都是圍繞如何利用DNA破案的,故本句描述錯(cuò)誤.
點(diǎn)評 本文講述了警察破案的方法.題目基本都是細(xì)節(jié)理解題,做題時(shí)需要結(jié)合題目和有針對性的找出原文的相關(guān)語句進(jìn)行仔細(xì)分析,從而判斷正誤.主旨大意題需要先弄清每段落主要講的內(nèi)容,這些內(nèi)容在邏輯上有什么聯(lián)系,然后加以歸納形成主題.
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