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2017年职称英语考试理工类阅读判断Plants in Desert

更新时间:2016-11-25 13:19:16 来源:环球网校 浏览139收藏13
摘要   【摘要】2017年职称英语考试备考进行中,网校为帮助大家备考特分享了2017年职称英语考试理工类阅读判断Plants in Desert,希望备考2017年职称英语考试的考生都能顺利通关,更多资料敬请关注环球职称英语考

  【摘要】2017年职称英语考试备考进行中,网校为帮助大家备考特分享了“2017年职称英语考试理工类阅读判断Plants in Desert”,希望备考2017年职称英语考试的考生都能顺利通关,更多资料敬请关注环球职称英语考试频道!

  相关推荐:2017年职称英语考试理工类完形填空专练汇总 

  职称英语考试理工类阅读判断Plants in Desert

  Only special plants can survive the terrible climate of a desert,for these are regions where the annual range of the soil temperature can be over 75℃。Furthermore,during the summer there are few clouds in the sky to protect plants from the sun's ray.Another problem is the fact that there are frequently strong winds which drive small,sharp particles of sand into the plants,tearing and damaging them.The most difficult problem for all forms of plant life,however,is the fact that the entire annual rainfall occurs during a few days or weeks in spring.

  Grasses and flowers in desert survive from one year to the next by existing through the long,hot,dry season in the form of seeds.These seeds remain inactive unless the right amount of rain falls.If no rain falls,or if insufficient rain falls,they wait until the next year,or even still the next.Another factor that helps these plants to survive is the fact that their life cycles are short.By the time that the water from the spring rains disappears —— just a few weeks after it falls —— such plants no longer need any.

  The perennials have special features which enable them to survive as plants for several years.Thus,nearly all desert perennials have extensive root systems below ground and a small shoot system above ground.The large root network enables the plant to absorb as much water as possible in a short time.The small shoot system,on the other hand,considerably limits water loss by evaporation.

  Another feature of many desert perennials is that after the rainy season they lose their leaves in preparation for the long,dry season,just as trees in wetter climates lose theirs in preparation for the winter.This reduces their water loss by evaporation during the dry season.Then,in next rainy season,they come fully alive once more,and grow new branches,leaves and flowers,just as the grasses and flowers in desert do.

  16.Ordinary plants are unable to survive in the desert mainly because of the changeable weather.

  A.Right B.Wrong C.Not mentioned

  17.Grasses and flowers in desert are able to survive because they stay in the form of seeds to wait for the right amount of water to come.

  A.Right B.Wrong C.Not mentioned

  18.Grasses and flowers in the desert whose life cycles are short shows their ability to adapt to the quick disappearance of rainwater there after it falls in spring.

  A.Right B.Wrong C.Not mentioned

2017年职称英语考试复习重点句型汇总

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  环球网校友情提示:本文整理“2017年职称英语考试理工类阅读判断Plants in Desert”供考生参考练习。如果您在此过程中遇到任何疑问,请登录环球网校职称英语频道及职称英语论坛,我们随时与广大考生朋友们一起交流!

  【摘要】2017年职称英语考试备考进行中,网校为帮助大家备考特分享了“2017年职称英语考试理工类阅读判断Plants in Desert”,希望备考2017年职称英语考试的考生都能顺利通关,更多资料敬请关注环球职称英语考试频道!

  相关推荐:2017年职称英语考试理工类完形填空专练汇总 

  19.Winter is the toughest season for grasses and flowers to survive in desert

  A.Right B.Wrong C.Not mentioned

  20.The shoot system of perennials can help the plants absorb less of the sun's ray.

  A.Right B.Wrong C.Not mentioned

  21.The theme of the second last paragraph is why the perennials can survive as plants for several years.

  A.Right B.Wrong C.Not mentioned

  22.Desert perennials lose their leaves after the rainy season just as trees lose theirs in wetter climates before winter arrives,but the reasons for this feature are different.

  A.Right B.Wrong C.Not mentioned

  [参考答案]

  16.B 17.A 18.A 19.C 20.B 21.A 22.B

2017年职称英语考试复习重点句型汇总

2017年职称英语考试题型分析

2017年职称英语考试复习指导

2017年职称英语考试备考经验汇总

  环球网校友情提示:本文整理“2017年职称英语考试理工类阅读判断Plants in Desert”供考生参考练习。如果您在此过程中遇到任何疑问,请登录环球网校职称英语频道及职称英语论坛,我们随时与广大考生朋友们一起交流!

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