【題目】Never before ______ so highly successful in his attempts to forecast the weather accurately on a small scale.

A. man has been B. man is

C. has man been D. will be man

【答案】C

【解析】句意:人類嘗試在小范圍內(nèi)準確預(yù)報天氣從來沒有這么高度成功過。此題考查時態(tài)和倒裝句型。never置于句首時句子要部分倒裝。never before 用于現(xiàn)在完成時，因此答案為C。

練習(xí)冊系列答案
相關(guān)習(xí)題

科目：高中英語 來源： 題型：

【題目】—The Internet is amazing, isn't it?

—Yes. Just __________ it into a socket and you are instantly connected to the rest of the world.

A. to plug B. plug

C. plugging D. plugged

查看答案和解析>>

科目：高中英語 來源： 題型：

【題目】______ ，customers spend about 1.5 million pounds a day.

A. In average B. On average

C. In common D. On the contrary

查看答案和解析>>

科目：高中英語 來源： 題型：

【題目】She felt rather __________ that she should drive the car at such a __________ speed.

A. frightening; frightening B. frightened; frightened

C. frightening; frightened D. frightened; frightening

查看答案和解析>>

科目：高中英語 來源： 題型：

【題目】 I don't agree with canceling all large celebrations or events just because of one accident. “Once bitten, twice shy” is not a(n) __________ response. What we need to do is learn the lessons.

A. spiritual B. considerate

C. efficient D. appropriate

查看答案和解析>>

科目：高中英語 來源： 題型：

【題目】—Why is Jimmy so popular with his classmates?

—Because he is humorous and always ______ jokes.

A. says B. speaks

C. states D. Tells

查看答案和解析>>

科目：高中英語 來源： 題型：

【題目】If you need glasses to read this, you are among the majority of Chinese students. That’s because most students in China are short-sighted which means they can only see things close up and distant things will be blurry. Four-fifths of high school students wear glasses and now more and more children in primary school need glasses, too.

This epidemic of poor eyesight has two very simple causes: too much time spent indoors studying and too little time spent outdoors playing. Reading and writing for hours and hours, sometimes in poorly lighted rooms, causes eyesight to weaken. But students have to do this because there is so much pressure on them to succeed in school. And because they spend so much time indoors at school and at home, they have less time to spend outdoors enjoying the sun.

The sun, as a consequence, is important in developing good eyesight. Exposure to daylight releases a chemical in the eyes that prevents, or at least delays, short-sightedness. According to a study by Ian Morgan of Australian National University, Australian children and Chinese children have the same level of eyesight before they start school, but once they enter primary school, Chinese children only spend about an hour a day outside, while Australian children spend three to four hours each day in the sunshine. The result is that while about 40 percent of Chinese primary school students need glasses, only three percent of Australian children do.

Wearing glasses may not seem like a big deal. For some, wearing glasses can even be an opportunity to make a fashion statement. But poor eyesight at a young age can have serious long term consequences. As you get older, your eyesight can worsen and lead to things like macular degeneration(黃斑變性), a condition of the eyes for which there is no cure and which can eventually lead to blindness.

With all that in mind, don’t you think it’s time to give your eyes a break? Try spending a little less time inside and go for a walk in the park, instead. It’s the healthy thing to do and your eyes will thank you for it.

【1】What does the underlined word “blurry” mean?

A. unpopular. B. unpleasant.

C. unclear. D. unconscious.

【2】How should the students protect their eyesight according to the passage?

A. They should study less and less. B. They should stay longer outdoors.

C. They should wear sun-glasses. D. They should have a longer rest in bed.

【3】It can be inferred from the passage that _____ is to blame for the poor eyesight of Chinese children.

A. the ever-worsening bad weather B. the ever-increasing burden of study

C. the ever-decreasing sunny days D. the ever-decreasing period of study time

【4】What is the purpose of this article?

A. To explain why Chinese students are poor-sighted.

B. To admire Australian children’s good eyesight.

C. To criticizethe present education system.

D. To call on people to protect Chinese children’s eyesight

查看答案和解析>>

科目：高中英語 來源： 題型：

【題目】請根據(jù)以下提示，并結(jié)合事例，用英語寫一篇短文。

As for “the way to success”, Abraham Lincoln once said, “Give me six hours to chop down a tree, and I will spend the first four sharpening the axe.”

注意：①無須寫標題；

②除詩歌外，文體不限；

③內(nèi)容必須結(jié)合你生活中的一個事例；

④文中不得透露個人姓名和學(xué)校名稱；

⑤詞數(shù)不少于120，如引用提示語則不計入總詞數(shù)。

查看答案和解析>>

科目：高中英語 來源： 題型：

【題目】Every possible means __________ to prevent the air pollution, but the sky is still not clear.

A. is used B. are used

C. has been used D. have been used

查看答案和解析>>

同步練習(xí)冊答案