Space vegetables are grown from seeds (種子) that have been taken to space and brought back to the earth. The seeds are affected by the radiation (輻射) and low gravity in space. When they are brought back to the earth, these seeds produce vegetables that are bigger and healthier than normal vegetables. However, some people worry about eating space vegetables. They think that space vegetables might not be good for us and could make us get sick because of the radiation in space. However, people should not be frightened because space vegetables are very healthy.
Here are some facts that you should know about space vegetables.
Space vegetables are grown from seeds that are carefully chosen. When seeds are brought back from space, they are tested to make sure that they will be safe to eat.
Space vegetables are better for you than normal vegetables. For example, space tomatoes stay fresh for twenty days, which is one week longer than normal tomatoes.
After genetically modified (轉(zhuǎn)基因) food appeared in the market, people worried that they were eating unknown things. For example, if nut genes (堅(jiān)果基因) are put inside potatoes, people allergic (過(guò)敏的) to nuts might get sick from eating these potatoes because they do not know they are also eating nuts. Unlike genetically modified food, space vegetables have not been genetically changed. This means that no new genes are put into the vegetables. Therefore, there are no dangers of eating something unknown.
小題1:The seeds brought back from space produce ______ vegetables according to the passage.
A.more deliciousB.healthier and bigger
C.more dangerousD.cheaper and healthier
小題2:Genetically modified food is different from space vegetables because it ______.
A.is grown in spaceB.has nothing unknown
C.has been genetically changedD.has no new genes
小題3:According to the passage, normal tomatoes can stay fresh for about ______ days.
A.sevenB.thirteen C.twentyD.twenty-seven
小題4:The writer wants to tell us that ______.
A.space vegetables are grown in space
B.everybody worries about eating space vegetables
C.space vegetables are safe and good for people to eat
D.space vegetables may bring illness to us because of the radiation in space

小題1:B
小題2:C
小題3:B
小題4:C

試題分析:本文主要講述了太空蔬菜是由從太空帶回來(lái)的種子種植的蔬菜,比普通蔬菜要更大更健康。有人擔(dān)心蔬菜種子在太空中收到輻射,長(zhǎng)出的蔬菜會(huì)對(duì)身體有害。其實(shí)不然,從太空帶回來(lái)的種子經(jīng)過(guò)精挑細(xì)選來(lái)保證它是安全的。一些太空蔬菜要比普通蔬菜更好,比如太空西紅柿可以保鮮20天,比普通的多一周。在經(jīng)歷了市場(chǎng)轉(zhuǎn)基因?qū)嵨镏,人們?huì)擔(dān)心他們?cè)诔砸恍┳约翰恢赖氖澄。太空食物是不發(fā)生基因變化的。
小題1:細(xì)節(jié)理解題。 根據(jù)文章中When they are brought back to the earth, these seeds produce vegetables that are bigger and healthier than normal vegetables. 可知選B。
小題2:細(xì)節(jié)理解題。根據(jù)文章的句子Unlike genetically modified food, space vegetables have not been genetically changed. 可知,轉(zhuǎn)基因蔬菜的基因是發(fā)生變化的。故選C。
小題3:細(xì)節(jié)理解題。根據(jù)文中的句子space tomatoes stay fresh for twenty days, which is one week longer than normal tomatoes.可知普通的西紅柿是20天減一周,是13天。故選B。
小題4:主旨大意題。文章主要在證明太空蔬菜是健康的。故選C。
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科目:初中英語(yǔ) 來(lái)源:不詳 題型:閱讀理解



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