题目内容

【题目】阅读下面短文,在空白处填入1个适当的单词或括号内单词的正确形式。

Are energy drinks safe? In spite of the dangers 1 (know) to us all, the market for energy drinks is booming. The Global Energy Drink market 2 (expect) to teach $72 billion by 2024. This is great news for energy drink producers, 3 what are consumers really getting when they buy these drinks?

Energy drinks can cause dehydration (脱水). The main source of energy in most energy products is caffeine, 4increases urine (尿) production. People shouldn’t consume more than 400 mg of caffeine per day, but energy drink producers are not required by draw 5 (list) the amount of caffeine their products contain.

Energy drinks can increase heart rate. Caffeine contributes 6 a heart rate risk, says nutritionist Lisa Cohn, who found that energy drink abuse among teens 7 (cause) increased risk of heart attack, especially in those with potential heart conditions

Energy drinks can damage 8 (tooth) Most energy products contain large amounts of citric acid (柠檬酸), which is particularly 9 (harm) to enamel (牙釉质). In fact, the 10 (lose) of enamel after exposure to energy drinks is more than twice higher than after exposure to sports drinks.

【答案】

1known

2is expected

3but

4which

5to list

6to

7caused

8teeth

9harmful

10loss

【解析】

本文是一篇说明文。主要讲述功能饮料对身体的一些危害。

1考查非谓语动词。句意:尽管我们都知道这些危险,但功能饮料的市场正在蓬勃发展。known to us all是过去分词短语作后置定语,修饰the dangers,相当于定语从句that / which are known to us all,故填known

2考查时态语态。句意:到2024年,全球功能饮料市场预计将增长720亿美元。主语The Global Energy Drink market是谓语动词expect的承受者,需用被动语态;表示说的是现在的预期,应用一般现在时,故填is expected

3考查连词。句意:这对功能饮料生产商来说是个好消息,但消费者在购买这些饮料时真正得到了什么呢?前一分句与后一分句之间意义上是转折关系,故填but

4考查非限制性定语从句的引导词。句意:大多数功能产品中,功能的主要来源是咖啡因,它能增加尿液产生。关系代词which指代先行词caffeine,引导非限制性定语从并在从句中作主语,故填which

5考查非谓语动词。句意:人们每天摄入的咖啡因不应超过400毫克,但法律并没有要求功能饮料生产商列出其产品中咖啡因的含量。require sb to do sth“要求某人做某事,这里用的是其被动语态be required to do sth,故填to list

6考查介词。句意:营养学家Lisa Cohn说,咖啡因会增加心率风险,她发现青少年滥用能量饮料会增加心脏病发作的风险,尤其是那些有潜在心脏病的青少年。contribute to是固定短语,意思是促成;带来;有助于,故填to

7考查时态语态。句意:营养学家Lisa Cohn说,咖啡因会增加心率风险,她发现青少年滥用能量饮料会增加心脏病发作的风险,尤其是那些有潜在心脏病的青少年。在who引导的定语从句中,主句是一般过去时,that引导的宾语从句也要用过去的某种时态,故填caused

8考查名词。句意:能量饮料会损害牙齿。人的牙齿有许多颗,需用tooth的复数形式,故填teeth

9考查词性转换。句意:大多数功能产品含有大量柠檬酸,这对牙釉质特别有害。空格中所填单词在句中作表语,需用harm的形容词形式,故填harmful

10考查词性转换。空格中所填单词作句子的主语,需用名词形式,故填loss

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