All the books are not useful. Which of the fo...

All the books are not useful. Which of the following has the same meaning as this sentence?

高一英语单项填空中等难度题查看答案及解析

Not all the students obey the rules. Which of the following statement has the same meaning as it.

高一英语单项填空困难题查看答案及解析

There are _____ products to be sold in the factory store. Which of the following is not correct?

A. a large number of     B. a large amount of    C. quantities of      D. a great many

高一英语单项填空中等难度题查看答案及解析

_______　 we all know, books are the source of knowledge.

A. What B. That

C. Which D. As

高一英语单项填空中等难度题查看答案及解析

Most of us are used to seasons. Each year, spring follows winter, which follows autumn, which follows summer, which follows spring. And winter is colder than summer. But the earth goes through temperature cycles over much longer periods than those that we experience. Between 65,000 and 35,000 years ago, the planet was much colder than it is now. During that time the temperature also changed a lot, with periods of warming and cooling. Ice melted during the warm periods, which made sea levels rise. Water froze again during the cold periods.

A new study from Switzerland, sheds light on where ice sheets melted during the ice age. It now seems that the ice melted at both ends of the earth, rather than just in either northern or southern regions.

This surprised the researchers from the University of Bern. Scientists have long assumed that most of the ice that melted was in the Northern hemisphere(半球) during the 30,000-year long ice age. That belief was held because the North Pole is surrounded by land, while the South Pole is surrounded by the Antarctic Ocean. It is easier for ice sheets to grow on land. If surrounded by sea the ice can easily just slip into the ocean instead of building up.

The researchers used a computer model to look at ways the ice could melt and how it might affect sea levels. They compared these results to evidence of how temperatures and currents actually changed during that time. The model showed that if it was only in the Northern hemisphere that ice melted, there would have been a bigger impact(影响) on ocean currents(洋流) and sea temperatures than what actually happened. Studies suggest that melting just in the Southern hemisphere would have been impossible, too. The only reasonable conclusion, the scientists could make, was that ice melted equally in the North and the South.

It is still a mystery as to what caused the temperature changes that caused the ice to melt.

1.The North Pole is surrounded by land, while the South Pole is surrounded by the Antarctic Ocean. So scientists thought that ________.

A. most of the ice melted in the Northern hemisphere

B. most of the ice melted in the Southern hemisphere

C. The North Pole is colder than South Pole

D. The South Pole is colder than North Pole

2.We can infer from the passage ________.

A. the ice can easily just slip into the ocean

B. volcanoes caused the ice to melt

C. melting just in the Northern hemisphere would have been impossible

D. researchers often use the computer models help their research work.

3.The scientists are not sure ________.

A. how long the ice age lasted

B. where ice sheets melted during the ice age

C. what caused the temperature changes

D. what the earth is made up of

4.Which of the following is the best title for the passage?

A. A computer model

B. Studies show ice melted equally in the North and the South during the ice age

C. Most of the ice melted in the Northern hemisphere during the 30,000-year long ice age.

D. A survey result

高一英语阅读理解中等难度题查看答案及解析

There are ___ products to be sold in the factory store．Which is not correct in the following？

A．a large number of　　　　　　　 B．quantities of

C．a large amount of　　　　　　　 D．a great many

高一英语单项填空中等难度题查看答案及解析

There are________ products to be sold in the factory store. Which is not correct in the following?

高一英语单项填空中等难度题查看答案及解析

Tom was deeply       by the story of the hero. Which of the following is not right?

高一英语单项填空简单题查看答案及解析

Through hard work you will ________ the respect of your fellow workers.

Which of the following is not appropriate?

A. gain　　 B. earn

C. win　　 D. accept

高一英语单项填空中等难度题查看答案及解析

The book, _______ is blue, is mine.

A. cover of which         B. which cover

C. of which the cover      D. all the above

高一英语单项填空中等难度题查看答案及解析