【題目】閱讀下面材料，在空白處填入適當(dāng)?shù)膬?nèi)容（1個(gè)單詞）或括號(hào)內(nèi)單詞的正確形式。

Are energy drinks safe? In spite of 【1】 known dangers of energy drinks, the market for them is booming. The Global Energy Drink market is expected 【2】 (reach)$72 billion by 2024. This is great news for energy drink manufacturers, but what are 【3】(consumer)really getting when they buy these drinks?

Energy drinks can cause dehydration( 脫水). The main source of energy in most energy products is caffeine. It can be 【4】(particular)harmful for people who drink these products 【5】 the first time and don’t compensate with extra water, says nutritionist Beth Warren.

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

Energy drinks can damage teeth. Energy drink products contain citric acid( 檸檬酸), which does harm to teeth. A study 【8】(compare)sports drinks and energy drinks found that energy products have significantly 【9】(high)acidity and greater capacity to dissolve enamel( 牙 釉 質(zhì) )compared to sports drinks. In fact, the 【10】(lose)of enamel after exposure to energy drinks was more than twice higher than after exposure to sports drinks.

【答案】

【1】the

【2】to reach

【3】consumers

【4】particularly

【5】for

【6】contains

【7】who

【8】comparing

【9】higher

【10】loss

【解析】

這是一篇說明文，主要介紹了功能飲料的壞處。

【1】考查冠詞。句意：盡管功能飲料已知的那些危害，但它們的市場(chǎng)正在蓬勃發(fā)展。這里的危害指的是大家都已經(jīng)知道的一些危害，是特指，故填the。

【2】考查非謂語動(dòng)詞。句意：預(yù)計(jì)到2024年，全球功能飲料的市場(chǎng)會(huì)達(dá)到720億美元。be expected to do sth“期望做某事”。故填to reach。

【3】考查主謂一致。句意：這對(duì)于功能飲料廠商來說是大大的好消息，但是消費(fèi)者當(dāng)他們購買功能飲料的時(shí)候他們真正獲得的是什么呢？這個(gè)疑問句中，因?yàn)橛玫氖?/span>are getting…，所以主語要用復(fù)數(shù)，故填consumers。

【4】考查副詞。句意：營養(yǎng)學(xué)家Beth Warren說，這對(duì)于第一次喝這些飲料的而且不補(bǔ)水的人而言，尤其有害。這里是修飾形容詞，需要用副詞。故填particularly。

【5】考查固定短語。句意：營養(yǎng)學(xué)家Beth Warren說，這對(duì)于第一次喝這些飲料的而且不補(bǔ)水的人而言，尤其有害。固定短語for the first time（第一次），故填for。

【6】考查時(shí)態(tài)和主謂一致。句意：營養(yǎng)學(xué)家Lisa Cohn說，咖啡因也有心率加快的風(fēng)險(xiǎn)。她發(fā)現(xiàn)青少年間的功能飲料濫用提升了心臟病的風(fēng)險(xiǎn)，尤其是對(duì)那些有潛在心臟問題的人。整篇文章的主要時(shí)態(tài)是一般現(xiàn)在時(shí)，這里說咖啡因的影響也是一種客觀事實(shí)，所以也用一般現(xiàn)在時(shí)。主語為caffeine 。故填contains。

【7】考查定語從句。句意：營養(yǎng)學(xué)家Lisa Cohn說，咖啡因也有心率加快的風(fēng)險(xiǎn)。她發(fā)現(xiàn)青少年間的功能飲料濫用提升了心臟病的風(fēng)險(xiǎn)，尤其是對(duì)那些有潛在心臟問題的人。分析句子成分，這里是非限制型定語從句，先行詞Lisa Cohn在定語從句中作主語，故填who。

【8】考查非謂語動(dòng)詞。句意：一項(xiàng)將運(yùn)動(dòng)飲料和功能飲料進(jìn)行比較的研究發(fā)現(xiàn)：與運(yùn)動(dòng)飲料相比較之下，功能飲料酸度更高，更容易溶解牙釉質(zhì)。分析句子成分可知，這里是非謂語動(dòng)詞作定語，修飾study，研究跟比較之間是主動(dòng)關(guān)系，故填comparing。

【9】考查形容詞比較級(jí)。句意：一項(xiàng)將運(yùn)動(dòng)飲料和功能飲料進(jìn)行比較的研究發(fā)現(xiàn)：與運(yùn)動(dòng)飲料相比較之下，功能飲料酸度更高，更容易溶解牙釉質(zhì)。這里是兩者進(jìn)行比較，所以要用比較級(jí)。故填higher。

【10】考查名詞。句意：事實(shí)上，喝了功能飲料后，牙釉質(zhì)的失去量比喝了運(yùn)動(dòng)飲料后要高出兩倍多。分析句子成分，這里是作主語，而且前面有冠詞修飾，所以要用名詞。故填loss。

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