[题目]We arrived at the museum.in a hurry, only that it wouldn't be open until the next Wednesday.A．to tell B. to be toldC. telling D. told 题目和参考答案——青夏教育精英家教网—

题目内容

【题目】

We arrived at the museum.in a hurry, only_______that it wouldn't be open until the next Wednesday.

A．to tell

B. to be told

C. telling

D. told

【答案】B

【解析】考查非谓语动词。句意为“我们匆匆赶到博物馆，结果被告知下周三才开放”。only to do sth.在句中表示结果，是意外的结果；另外主语是tell动作的承受者，所以用不定式的被动形式。

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【题目】用方框中所给单词或短语的适当形式填空

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【1】You ______ me in a very difficult position.

【2】These children loved ______ their teacher.

【3】 She tried to understand the instructions, but she was ______ at sea．

【4】Some people believe that God ______the world.

【5】 If you ______ all that, you would change your mind.

【6】 There is still no ______ for the special cold.

【7】 They walked through the forest ______ the fresh air.

【8】The ______campaign didn’t have much effect on sales.

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【13】 Our scientists are ______ the way in space research.

【14】The salesman said the car was in good condition, and I was foolish enough ______ it.

【15】 He made no ______on our proposal.

【题目】翻译短语

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【3】 in particular

【4】 be home to

【5】 do one's part

【6】在进行中

【7】集中，关注

【8】第二大城市

【9】与大自然作斗争

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【题目】 The 2012 London Olympics had enough problems to worry about. But one more has just been added - a communications blackout caused by solar storms.

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【3】 According to the passage, NASA will launch a satellite to _________.

A. take images of the solar system

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【4】Which of the following might be the best title of the passage?

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【题目】阅读下面的文字，回答下列各题。

人体细胞生物传感器分子机理首次揭开

《科技日报》华盛顿2011年6月7日电美国加州大学洛杉矶分校的研究人员6日表示，他们首次发现了人体细胞生物传感器分子的机理，为复杂的细胞控制系统提出了新的阐述。相关内容将以“本周论文”的形式刊登在6月10日出版的《生物化学杂志》上，该成果有望帮助人们开发出应对高血压病和遗传性癫痫症等疾病的特殊疗法。

人体细胞控制系统能够引发一系列的细胞活动，而生物传感器是人体细胞控制系统的重要组成部分。被称为“控制环”的传感器能够在细胞膜上打开特定的通道让钾离子流通过细胞膜，如同地铁入站口能够让人们进入站台的回转栏。钾离子参与了人体内的关键活动，如血压、胰岛素分泌和大脑信号等的调整。然而，控制环传感器的生物物理功能过去一直未被人们了解。

研究人员发现，如同能够监视周围环境并能发出声信号的烟雾报警器一样，细胞能够通过了解变化和产生反应的分子传感器来控制细胞内的环境。当钙离子与控制环结合时，构成了被称为BK通道的细胞内部结构，细胞做出的反应是允许钾离子通过细胞膜。BK通道存在于人体多数细胞中，它们掌控着基本的生物过程，如血压、大脑和神经系统电信号、膀胱肌肉收缩和胰腺胰岛素分泌等。

加州大学洛杉矶分校研究人员首次证明控制环如何被激活，以及如何重新调整自己以便打开让钾离子穿过细胞膜的通道。利用实验室中先进的电生理学、生化和光谱仪技术，研究人员观察到钙离子与控制环的结合以及控制环结构的变化。该变化是其将钙离子结合的化学能转化为帮助打开BK通道的机械能。

研究负责人、洛杉矶分校麻醉学系分子医学部副教授里卡多·奥尔塞斯表示，在类似于活细胞的条件下，他们能够控制发生在生物传感器中的生物物理变化。他们相信细胞中的变化反映了人体中BK通道运行时分子的活动情况。

研究报告作者安诺希·贾沃荷瑞恩认为，人体分子生物传感器是令人兴奋的研究领域，希望研究成果能够让人类更深入地了解复杂的生物传感器是如何运作的。由于BK通道和其传感器与正常生理机能的许多方面相关，因此研究人员还相信，生物传感器工作过程也许与疾病的不少方面相关，例如，已证明BK传感器的失常与遗传性癫痫症有关。

研究人员将进一步了解BK控制环感应器以及通道是否涉及传感小分子(而不是钙离子)，这些小分子在人体工作中同样也具有十分重要的生物意义。

(有删改)

【1】下列表述，符合原文意思的两项是( )

A．研究人员首次发现了人体细胞生物传感器分子的机理，为复杂的细胞控制系统提出了新的阐述，该发现能帮助人们开发出应对高血压病和遗传性癫痫症等疾病的特殊疗法。

B．钾离子掌控着基本的生物过程，如血压、大脑和神经系统电信号、膀胱肌肉收缩和胰腺胰岛素分泌等。

C．研究人员表示，在类似于活细胞的条件下，他们能够控制发生在生物传感器中的生物物理变化。他们相信细胞中的变化反映了人体中BK通道运行时分子的活动情况。

D．利用实验室，研究人员观察到控制环结构的变化。该变化是其将钙离子结合的机械能转化为帮助打开BK通道的化学能。

E．控制环传感器的生物物理功能过去一直未被人们了解，而现在加州大学洛杉矶分校研究者发现并揭开了它的分子机理。

【2】美国加州大学洛杉矶分校的研究人员有哪些新的发现？请具体作答。

答：________________________________________________________________________

________________________________________________________________________

【3】指出本文采用了哪些说明方法。(至少两种，要求列举原文说明)

答：________________________________________________________________________

________________________________________________________________________

【4】文本中分别引用了研究负责人奥尔塞斯和研究报告作者贾沃荷瑞恩两人的话，文本的引用意图是否一致？这些能否变成本文作者的表述？

答：________________________________________________________________________

________________________________________________________________________

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