2019-2020同步北师大英语选修七新突破课时分层作业8 Word版含解析

课时分层作业(八)

[语言知识练习固基础]

Ⅰ.单句语法填空

1．Did you leave the doors and windows firmly fastened(fasten)?

2．It was when he was about to go to bed that the telephone rang.

3．The true wealth does not consist in what we are.

4．Our literature and art ought to cater to popular taste.

5．It's time I got down to thinking(think) about that essay.

6．They postponed leaving(leave) because of the weather.

7．He preferred be treated as an ordinary worker.

8．We must be honest and faithful(faith) to the people.

9．They prohibited me from borrowing(borrow) a book.

10．The economic situation was serious, but they pulled through．

Ⅱ.完成句子

1．这件事使她没有一丝一毫的希望。

This matter left her without a way of hope．

2．我们昨晚是在十点到家的。

It was at ten o'clock that we got home last night.

3．医生们试图阻止癌细胞扩散。

The doctors are making an attempt to prevent cancer cells spreading.

4．葬礼结束后，她一直痛哭许久。

She was weeping away long after the funeral had ended.

5．一个国家的幸福以其公民之自由为主要因素。

The happiness of a country consists in the freedom of its citizens.

[高考题型练习提能力]

Ⅰ.阅读理解

HANGZHOU—A human blood protein has been found to be associated with the H7N9 death rate, according to a study by Chinese medical scientists.

The study，published in Nature Communications on May 13，showed that blood

plasma levels of angiotensin Ⅱare higher in H7N9 patients and could be used to predict their physical worsening.

Angiotensin Ⅱis a human protein contained in plasma，the vascular (血管的) wall，heart and kidney to regulate blood pressure.It is closely linked to serious lung injury. H7N9 patients with higher levels of angiotensin Ⅱcarry more viral load (病毒载量)，said Li Lanjuan，researcher at the Chinese Academy of Engineering and a specialist in H7N9 prevention.“It is particularly obvious in the second week of human infection. The angiotensin Ⅱlevel of patients in critical condition keeps going up, while that of mild cases tends to drop，”Li said.

Li added the new finding could help in clinical practice.Medical personnel could adopt more effective and reliable treatment measures for patients suffering different conditions.“This study will provide a new perspective to H7N9 pathology (病理) and potential treatment for future cases，”said Ed Gerstner，executive editor of Nature Communications.

The study was led by researchers of the First Affiliated Hospital of Zhejiang University, Chinese Academy of Medical Sciences and Chinese Center for Disease Control and Prevention.They collected plasma from 47 H7N9 patients in cities of Hangzhou，Shanghai and Nanjing and analyzed the connection between angiotensin Ⅱand viral load.

H7N9 was first reported in China in March 2013.The virus causes severe disease in humans，including acute and often fatal breathing failure.The country has reported more than 200 human H7N9 cases.

【语篇解读】本文讲的是中国科学家发现了一种人体血浆蛋白与H7N9病死亡率有关。

1．What does the passage mainly talk about?

A．Chinese scientists found a human blood protein associated with the H7N9 death rate.

B．Chinese scientists have made a new medical discovery.

C．A new perspective to H7N9 pathology provided by a medical study.

D．A report of H7N9 death rate.