( ) 1. More and more people choose to shop in the supermarket,for they are especially interested in the of goods on offer.
A. price B. variety C. value D. amount
1. B考查名詞的詞義,price價(jià)格,價(jià)值;variety種類,多樣化;value價(jià)值,意義;amount數(shù)量,總額。句意:越來越多的人選擇在超巿購(gòu)物,因?yàn)樗麄兿矚g那里多種多樣的商品。
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Forget chip fat,sugar cane or rapeseed oil―the latest source of biofuel could be watermelons.
Scientists have discovered that the fruit is a great source of sugar that can be readily distilled (蒸餾) into alcohol to power cars and farm machinery.
And because sellers reject 360,000 tons of "substandard" fruit annually in America alone, they could be used as an economical way to make fuel.
The waste from US growers could produce nearly two million gallons( nine million litres) of biofuel per year.
In the study,researchers at the United States Department of Agriculture set out to determine
the biofuel potential of juice from rejected watermelons―those not sold due to cosmetic imperfec?tions ,and currently ploughed back into the field.
About a fifth of each annual watermelon crop is left in the field because of surface blemishes (瑕瘋) or because they are misshapen.
Dr. Wayne Fish,who led the team,found that 50 percent of the fruit was fermentable (可發(fā)酵的) into alcohol which could provide valuable fuel.
"We've shown that the juice of these melons is a source of readily fermentable sugars, representing an unexploited raw material for alcohol biofuel production," he said.
The study, published in the journal Biotechnology for Biofuels,discovered that watermelons could produce around 20 gallons of ftiel per acre from fruit that otherwise would go to waste.
Production of biofuels has been targeted by Western governments as a way to support renewable energy targets.
The European Union has a target for 2010 that 5.75 percent of transport fuels should come from biological sources, but the target is unlikely to be met.
The British government's Renewable Transport Fuel Obligation requires five percent of the fuel sold at the pump by 2010 to be biofueled.
( ) 1. The passage mainly tells us that .
A. Western countries aim at producing biofuels
B. watermelons could be used to make fuel
C. the advantage of fuel made from watermelons
D. watermelon juice will be the largest source of renewable energy
( ) 2. Which of the following is NOT the reason why so many watermelons are deserted in America each year?
A. They are substandard. B. They are imperfect.
C. They are misshapen. D. They are oversupplied.
( ) 3. The underlined word "cosmetic" in Paragraph 5 probably means " ".
A. inside B. flavor C. surface D. freshness
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我真不明白你居然犯了這么個(gè)愚蠢的錯(cuò)誤。
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8. Don,t be too rude to your father. Never in his life in that way up to now. (speak)
不要對(duì)你的父親那么粗魯。到現(xiàn)在為止,在他的一生中,還沒有人對(duì)他那樣講過話。
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( ) 6. Each child is unique and teachers should encourage each one to realize their .
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7.1 feel so sick. I wish Mum to eat so much. (force)
我感到有點(diǎn)惡心。真希望媽媽沒有逼我吃這么多。
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科目:高中英語 來源: 題型:
8. Go to bed right now. Forget you need to get up as early as you can ?(catch)
現(xiàn)在立刻上床睡覺!你難道忘了你明天要盡可能起早去趕早班火車嗎?
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