首页 → 名言 → 格言演讲
職稱英語理工a真題 2016年職稱英語理工a
日期:2023-02-26 23:59:20    编辑:网络投稿    来源:网络资源
職稱英語理工A考試押題閱讀判斷練習17 時間:2016-09-20 15:36:24 娛樂資訊 我要投稿
为你推荐:
  • 適合送給不清醒的人
  • 職稱英語理工A考試押題閱讀判斷練習17 時間:2016-09-20 15:36:24 娛樂資訊 我要投稿

    2017年職稱英語理工A考試押題閱讀判斷練習17

    為您整理了“2017年職稱英語理工A考試押題閱讀判斷練習17”,方便廣大網友查閱!更多職稱英語考試相關信息請訪問職稱英語考試網。 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

    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

    【參考答案】16. B17. A18. A19. C20. B 21. A22. B

    【2017年職稱英語理工A考試押題閱讀判斷練習17】相關文章:

    1.2017年職稱英語理工A考試押題閱讀判斷練習18

    2.2017職稱英語考試理工B考試押題:閱讀判斷

    3.2017年職稱英語理工類A級閱讀判斷模擬練習(2)

    4.2017年職稱英語衛生A模擬試題閱讀判斷

    5.2017職稱英語考試理工類B級閱讀理解練習題(六)

    6.2017職稱英語考試理工類B級閱讀理解練習題(四)

    7.2017職稱英語考試理工類B級閱讀理解練習題(三)

    8.2017職稱英語考試理工類B級閱讀理解練習題(二)

    这里有更多你想看的
  • 20句早安勵志語錄適
    • 本类最新
    • 精品图文
    • 时尚
    • 新闻
    • 生活
    • 视觉
    • 微爱
      栏目ID=88的表不存在(操作类型=0)

    头条推荐

    热门推荐

    特别推荐

    返回顶部