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问题 阅读理解与欣赏

阅读下面这首诗，然后完成问题。

酬乐天扬州初逢席上见赠

刘禹锡

巴山楚水凄凉地，二十三年弃置身。

怀旧空吟闻笛赋，到乡翻似烂柯人。

沉舟侧畔千帆过，病树前头万木春。

今日听君歌一曲，暂凭杯酒长精神。

1．这首诗的首联写出了诗人怎样的遭遇？

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2．这首诗虽含忧伤，但更见豁达。请结合划线诗句，作简要分析。

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答案

1．答题要点：诗人远离京城，身处荒僻之地，长期被弃用。（意对即可。）

2．答题要点：①“沉舟”、“病树”是诗人自喻，饱含感慨身世、惆怅忧伤之情；②但他对未来并不失望，坚信“沉舟侧畔”，必然有“千帆”竞渡，“病树前头”，终究会“万木”争春，表现出诗人豁达豪迈的胸襟。（意思对即可）

单项选择题 B1型题

出现口角下垂，上下睑不能闭合等面瘫症状，面神经的损伤部位位于（）

A.膝状神经节

B.鼓索与镫骨肌神经节之间

C.脑桥与膝状神经节之间

D.镫骨肌与膝状神经节

E.茎乳孔以外
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单项选择题

About fifty years ago, plant physiologists set out to grow roots by themselves in solutions in laboratory flasks. The scientists found that the nutrition of isolated roots was quite simple. They required sugar and the usual minerals and vitamins. However, they did not require organic nitrogen compounds. These roots got along fine on mineral inorganic nitrogen. Roots are capable of making their own proteins and other organic compounds. These activities by roots require energy, of course. The process of respiration uses sugar to make the high energy compound ATP, which drives the biochemical reactions. Respiration also requires oxygen. Highly active roots require a good deal of oxygen.The study of isolated roots has provided an understanding of the relationship between shoots and roots in intact plants. The leaves of the shoots provide the roots with sugar and vitamins, and the roots provide the shoots with water and minerals. In addition, roots can provide the shoots with organic nitrogen compounds. This comes in handy for the growth of buds in the early spring when leaves are not yet functioning. Once leaves begin photosynthesizing, they produce protein, but only mature leaves can "export" protein to the rest of the plant in the form of amino acids.

What is the main topic of the passage

A．The relationship between a plant’s roots and its shoots.

B．What can be learned by growing roots in isolation.

C．How plants can be grown without roots.

D．What elements are necessary for the growth of plants.
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