题目内容

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.

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

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.

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

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

【小题1】A

【小题2】C

【小题3】C

【小题4】B


解析:

【小题1】 A 事实细节题。根据第 3 段第 2,3 句 Scientists have long assumed that most of the ice that melted was in the Northern hemisphere during the 30,000-year long ice age. That belief was held because the North Pole is surrounded by land… 可知答案。

【小题2】 C 推理判断题。根据第 4 段最后两句可 Studies suggest that melting just in the Southern hemisphere would have been impossible, too. The only reasonable conclusion… 可知冰川既不可能只在南半球融化,也不可能只在北半球融化。故答案为 C。

【小题3】 C 事实细节题。根据文章最后一句 It is still a mystery as to what caused the temperature changes that caused the ice to melt 可知科学家们现在还没有找到引起温度变化的原因。

【小题4 】B 主旨大意题。根据主题句 ice melted equally in the North and the South 可知本文主要讲的一个新的科学发现:冰川时期的冰川融化是在南北极均匀进行的。

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1.A. possible              B. easy                        C. new                        D. different

2.A. that                     B. what                       C. whether                 D. as if

3.A. usual                            B. normal                   C. certain                   D. common

4.A. realistic              B. reasonable            C. moral                      D. instructive

5.A. difficult               B. impossible    C. important              D. necessary

6.A. thinkable            B. designed                C. imagined                D. planned

7.A. do                        B. make                      C. have                       D. are

8.A. lessons               B. dreams                   C. experience           D. magic

9.A. working              B. thinking                  C. living             D. understanding

10.A. knowledge                B. skill                         C. words            D. grammar

11.A. make                          B. get                          C. use                          D. have

12.A. a newspaper   B. something             C. everything             D. a story

13.A. find                            B. learn                       C. know                      D. hope

14.A. too                             B. not                          C. all                            D. so

15.A. dangerous                B. serious                   C. strange                   D. terrible

16.A. talk                             B. learn                       C. read                        D. think

17.A. telling                        B. pretending            C. promising              D. guessing

18.A. mind                          B. life                          C. world            D. society

19.A. heart                          B. time                        C. money                    D. ourselves

20.A. what                           B. how                        C. when                      D. why

 

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Fast forward the present day and most of us have at least a personal web­based email account. It seems impossible to live without them. One of the biggest advantages of email is the fact that communication has become so much easier, especially with those across different time zones. Email takes seconds to send a message whereas letters, as we used to communicate by, could take weeks. Of course there was the fax, that beeping invention from the 1980s, but it wasn’t as secure as email and you never knew if the person on the other end had picked up your fax or if it had got lost somewhere in the office.

In conclusion, one of the best inventions from the 1990s has to be email. But sometimes people are too closely connected to their email and have a compulsion to check it several times a day. At work, people have become lazy and instead of going to speak to the person sitting next to them, they send an email,causing an in box to pile up with more time spent reading email and responding rather than working. Clearly, an invention that saved time because of its quick and speedy connection can now also cause us to waste a lot of time.

1.The earliest web-based email came into being probably _______.

A. in 1991                            B. in 1996                   C. in 1997                   D. in 2007

2.The author mentions “fax” in the third paragraph in order to tell us that _______.

A. it is exactly as good as email

B. it is much better than email

C. it is less convenient than email

D. it is easier and faster than email

3.The underlined word “compulsion” in Paragraph 4 probably means “_______”.

A. strong desire                  B. common sense               C. special curiosity          D. general idea

4.Which is the main idea of the last paragraph?

A. We should check email boxes frequently.

B. Lazy people like sending an email.

C. Email brings us great convenience.

D. Good inventions also cause problems.

 

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1.This passage is about         

A. the great length of each chapter

B. the great varieties in writing styles

C. the richness of the content in Shakespeare’s works

D. the rich English language used by Shakespeare in his works

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A. His date of birth

B. His marriage

C. His life in the Grammar School

D. His date of death

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A. not all the comments on Shakespeare’s works have produced good effects

B. scholars have successfully collected facts about Shakespeare’s life

C. critics are more interested in Shakespeare’s play than his poetry

D. the details of Shakespeare’s life are more important than his literary works

4. What does the last sentence in Para 3 mean ?

A. People don’t think the poetry of Shakespeare good any more.

B. People pay more attention to the comment than the poetry of Shakespeare.

C. People can’t see the poetry of Shakespeare any more.

D. The comment is printed on the poetry of Shakespeare.

 

Pay Attention to the Organization of an Article.

Check Your Understanding.

Lightning Speed Exercise

Set Aside Time Each Day.

Check Your Progress through Pacing

Speed up When Necessary.

1.______

Most of us can find 15 minutes or half an hour each day for some specific regular activity. For example, one famous surgeon always made it a rule to spend at least 15 minutes on general reading before he went to sleep each day. Whether he went to bed at 10 p.m. or 2:30 a.m. made no difference.

2.______

Nearly all ‘speed reading’ courses have a ‘pacing’ element---some timing device which lets the students know how many words a minutes he is reading. You can do this simply by looking at your watch every 5 or 10 minutes and noting down the page number you have reached.

3.______

Obviously there is little point in increasing your reading speed if you do not understand what you are reading. If you find you have lost the thread of the story, or you can’t remember clearly the details of what was said, re-read the section or chapter.

4.______

Take four or five pages of an interesting book you happen to be reading at the time. Read them as fast as you possibly can. Do not bother about whether you understand or not. After a ‘lightning speed’ of reading, you will usually find that your ‘normal’ speed has increased.

5.______

Most paragraphs in an article have a ‘topic sentence’ which expresses the central ideas. The opening paragraph often suggests the general direction and content of the piece, while paragraphs that follow expand or support the first. The closing paragraph often summarizes the very essence(实质) of what has been said.

 

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