坐在长途汽车上的乘客，看见前面的卡车与他的距离保持不变，后面的摩托车离他越来越远，若以卡车为参照物，长途汽车是_________的，摩托车是________的

建筑工地上的起重机正吊起一个工件，工件的质量为100kg，若工件以lm／s的速度竖直向上匀速运动，则起重机的钢丝绳受到的拉力的大小为       N，方向为    ；若工件静止在空中，则此时起重机的钢丝绳受到的拉力的大小为       N

如图所示，横轴表示细胞分裂时期，纵轴表示一个细胞核中DNA含量或染色体数目的变化情况。据图分析，表示有丝分裂过程中DNA含量变化、染色体数目变化和减数分裂过程中DNA含量变化、染色体数目变化的曲线依次是(　　)

A．④②①③

B．①④②③

C．④①②③

D．①②③④

In some urban centers, workaholism is so common that people do not consider it unusual:
They accept the lifestyle as normal. Government workers in Washington D.C, for example, frequently work sixty to seventy hours a week. They don’t do this because they have to; they do it because they want   to.
Workaholism can be a serious problem. Because true workaholics would rather work than do anything else, they probably don’t know how to relax.
Is workaholism always dangerous? Perhaps not. There are, certainly, people who work well under stress. Some studies show that many workaholies have great energy and interest in life. Their work is so pleasurable that they are actually very happy. For most workaholics, work and entertainment keep them busy and creative.
Why do workaholics enjoy their jobs so much? There are several advantages to work. Of course, it provides people with paychecks, and this is important. But it offers more than financial security. It provides people with self?confidence; they have a feeling of satisfaction when they’re produced a challenging piece of work and are able to say,“I made that.” Psychologists claim that work gives people an identity through participation in work, they get a sense of self and individualism. In addition, most jobs provide people with a socially acceptable way to meet others. Perhaps some people are compulsive about their work, but their addiction seems to be a safe-even an advantageous-one.
9.The passage indicates that workaholics          .
A.just know work but nothing else
B.are willing to work hard for long hours without pay
C.find their work provide them more satisfaction and self?confidence than how much they are   paid
D.has the work with more responsibility than others
10.One of the reasons that some people are not willing to quit their jobs even in their eighties and  nineties is that       
A.they are in the need of financial security
B.they would rather work than be disturbed by domestic affairs
C.they long for a sense of identity and being accomplished
D.they may have health problems from sheer boredom
11.This passage is mainly about .
A.workaholics are usually successful people, but their lives are in a mess       
B.workaholism can lead to serious problems but it can also create a joyful life
C.people who are absorbed in their work may enjoy movies, sports and other kinds of entertainment
D.those who work even under difficult conditions may be very happy
12.It can be inferred from the passage that .        
A.in the eyes of all the common people workaholics are peculiar
B.to workaholics, work is the sole source of happiness
C.a piece of challenging work may provide the workaholics a sense of satisfaction
D.workaholics are as addicted to their job as other people are to drugs or alcohol

已知(2，5)、(4，5)是抛物线y=ax2＋bx＋c上的两点，则这个抛物线的对称轴方程是

A．x=．

B．x=2．

C．x=4．

D．x=3．

You may have heard the term "the American Dream". In 1848, James W. Marshall found gold in California and people began having golden dreams. That 19th century "American Dream" motivated (激发起) the Gold Rush and gave California its nickname of the "Golden State".
The American Dream drove not only 1800s gold-rush prospectors but also waves of immigrants throughout that century and the next. People from Europe, and a large number of Chinese, arrived in the US in the 19th century hoping that in America they would find gold in the streets. But most, instead, worked as railroad labourers. They created the oldest Chinatown, in San Francisco, and gave the city a Chinese name "the old gold hill".
In the 20th century, some critics said that it was no longer possible to become prosperous through determination and hard work. Unfair education for students from poor families and racial discrimination almost made the American Dream a nightmare.
Then, in the 1990s, California saw a new wave of dreamers in Silicon Valley. People poured their energy into the Internet. This new chapter of the American Dream attracted many business people and young talents from China and India to form start-ups and seek fortunes in America.
Better pay, a nice house, and a rising standard of living will always be attractive. However, the new American Dream is no longer just about money. It encourages Americans to consume wisely to protect the environment, improve the quality of life, and promote social justice.
The Governor of California, Arnold Schwarzenegger, has become the model of the new American Dream. After years of hard work, he grew from a poor young man from Austria into a movie superstar and then governor. Many people hope his story can save the American Dream and give California a brighter future.  
【小题1】 It can be inferred that _____.

A．America’s golden dream could never be realized

B．America’s golden dream had bought great fortunes to Chinese immigrants

C．each period of time has its own taste of the American dream

D．determination and hard work are the best way to realize the American dream

【小题2】Why did most of the early immigrants work as railroad laborers?

A．Because they could earn more money as railroad laborers.

B．Because they had to make a living by working as railroad laborers.

C．Because they thought railroad was the first step to find gold.

D．Because railroad laborers were greatly honored at that time.

【小题3】The underlined sentence “his story can save the American Dream” (in the last paragraph) indicates that _____.

A．the dream of seeking fortunate in America is easy to realize

B．most of the immigrants to America don’t reach their previous goal

C．the success of Arnold Schwarzenegger is among the common examples of the immigrants

D．the immigrants have made great contributions to California

【小题4】What’s the best title of the passage?

A．Wave of Immigrants to America	B．Make Fortunes Abroad
C．Hard Work Leads to Success	D．Changes of America’s Golden Dream

You may have heard the term "the American Dream". In 1848, James W. Marshall found gold in California and people began having golden dreams. That 19th century "American Dream" motivated (激发起) the Gold Rush and gave California its nickname of the "Golden State".
The American Dream drove not only 1800s gold-rush prospectors but also waves of immigrants throughout that century and the next. People from Europe, and a large number of Chinese, arrived in the US in the 19th century hoping that in America they would find gold in the streets. But most, instead, worked as railroad labourers. They created the oldest Chinatown, in San Francisco, and gave the city a Chinese name "the old gold hill".
In the 20th century, some critics said that it was no longer possible to become prosperous through determination and hard work. Unfair education for students from poor families and racial discrimination almost made the American Dream a nightmare.
Then, in the 1990s, California saw a new wave of dreamers in Silicon Valley. People poured their energy into the Internet. This new chapter of the American Dream attracted many business people and young talents from China and India to form start-ups and seek fortunes in America.
Better pay, a nice house, and a rising standard of living will always be attractive. However, the new American Dream is no longer just about money. It encourages Americans to consume wisely to protect the environment, improve the quality of life, and promote social justice.
The Governor of California, Arnold Schwarzenegger, has become the model of the new American Dream. After years of hard work, he grew from a poor young man from Austria into a movie superstar and then governor. Many people hope his story can save the American Dream and give California a brighter future.  
【小题1】 It can be inferred that _____.

A．America’s golden dream could never be realized

B．America’s golden dream had bought great fortunes to Chinese immigrants

C．each period of time has its own taste of the American dream

D．determination and hard work are the best way to realize the American dream

【小题2】Why did most of the early immigrants work as railroad laborers?

A．Because they could earn more money as railroad laborers.

B．Because they had to make a living by working as railroad laborers.

C．Because they thought railroad was the first step to find gold.

D．Because railroad laborers were greatly honored at that time.

【小题3】The underlined sentence “his story can save the American Dream” (in the last paragraph) indicates that _____.

A．the dream of seeking fortunate in America is easy to realize

B．most of the immigrants to America don’t reach their previous goal

C．the success of Arnold Schwarzenegger is among the common examples of the immigrants

D．the immigrants have made great contributions to California

【小题4】What’s the best title of the passage?

A．Wave of Immigrants to America	B．Make Fortunes Abroad
C．Hard Work Leads to Success	D．Changes of America’s Golden Dream

下面有关硅的叙述中，正确的是

A．硅原子既不易失去电子又不易得到电子，主要形成四价的化合物

B．硅是构成矿物和岩石的主要元素，硅在地壳中的含量在所有的元素中居第一位

C．硅的化学性质不活泼，在自然界中可以以游离态存在

D．二氧化硅在电子工业中，是最重要的半导体材料

The world always makes way for the dreamer.
When I was twelve years old, my father took me to see Zig Zigler. I remember sitting in that dark hall listening to Mr. Zigler  1  everyone’s spirits up to the ceiling, I  2  there feeling like I could do anything. When we got to the car, I turned to my father and said, “Dad, I want to          3   people feel like that.” My father asked me  4  I meant. “I want to be a motivational （激励人的）speaker just like Mr. Zigler,”  I replieD．A  5  was born.
Recently, I began seeking my dream of motivating others.  6  a four-year relationship with Fortune 100 Company  7  as a sales-trainer and ending as a regional sales manager, I left the company at the height of my  8 . Many people were  9  that I would leave after earning a six-figure income. And they asked  10  I would risk everything for a dream.
I made my  11  to start my own company and leave my secure（无忧虑的）position after
 12  a regional sales meeting. The vice-president of our company delivered a  13  that changed my life. He asked us, “If a god would offer you three wishes, what would they be?” After giving us a  14  to write down the three wishes, he then asked us, “Why do you need a  15 ?” I would never forget the power I felt at that moment. I realized that  16  I had accomplished in the past had prepared me for this moment. I was ready and didn’t need a god’s help to become a motivational speaker. A motivational speaker was  17 .
Having made that decision, I was immediately  18 . One week after I gave notice, my husband was laid off from his job, and now we had no  19 . But I held fast to my dream. The wonder really began to happen. In a short time my husband found a better joB．And I was able to book several   20  engagements with new customers. I discovered the incredible power of dreams.
1．A．rise                      B．blow                  C．put                      D．raise
2．A．left                       B．came                  C．arrived                 D．slipped
3．A．get                       B．hope                  C．make                   D．cheer
4．A．that                      B．what                  C．which                  D．if
5．A．dream                   B．idea                   C．girl                      D．speaker
6．A．After                    B．Before               C．Because                D．While
7．A．beginning             B．working             C．acting                  D．regarding
8．A．life                       B．love                   C．income                 D．career
9．A．disappointed          B．moved               C．surprised              D．delighted
10．A．when                  B．why                   C．if                         D．how
11．A．plan                    B．promise              C．decision               D．mind
12．A．attending             B．joining               C．entering               D．holding
13．A．newspaper           B．book                  C．report                  D．speech
14．A．day                     B．second               C．week                    D．moment
15．A．help                    B．job                    C．god                      D．company
16．A．everything           B．anything             C．nothing                D．something
17．A．alive                   B．dead                  C．missing                D．born
18．A．examined            B．searched             C．checked                D．tested
19．A．help                    B．harm                  C．income                 D．money
20．A．selling                B．speaking             C．writing                 D．listening

The world always makes way for the dreamer.
When I was twelve years old, my father took me to see Zig Zigler. I remember sitting in that dark hall listening to Mr. Zigler  1  everyone’s spirits up to the ceiling, I  2  there feeling like I could do anything. When we got to the car, I turned to my father and said, “Dad, I want to          3   people feel like that.” My father asked me  4  I meant. “I want to be a motivational （激励人的）speaker just like Mr. Zigler,”  I replieD．A  5  was born.
Recently, I began seeking my dream of motivating others.  6  a four-year relationship with Fortune 100 Company  7  as a sales-trainer and ending as a regional sales manager, I left the company at the height of my  8 . Many people were  9  that I would leave after earning a six-figure income. And they asked  10  I would risk everything for a dream.
I made my  11  to start my own company and leave my secure（无忧虑的）position after
 12  a regional sales meeting. The vice-president of our company delivered a  13  that changed my life. He asked us, “If a god would offer you three wishes, what would they be?” After giving us a  14  to write down the three wishes, he then asked us, “Why do you need a  15 ?” I would never forget the power I felt at that moment. I realized that  16  I had accomplished in the past had prepared me for this moment. I was ready and didn’t need a god’s help to become a motivational speaker. A motivational speaker was  17 .
Having made that decision, I was immediately  18 . One week after I gave notice, my husband was laid off from his job, and now we had no  19 . But I held fast to my dream. The wonder really began to happen. In a short time my husband found a better joB．And I was able to book several   20  engagements with new customers. I discovered the incredible power of dreams.
1．A．rise                      B．blow                  C．put                      D．raise
2．A．left                       B．came                  C．arrived                 D．slipped
3．A．get                       B．hope                  C．make                   D．cheer
4．A．that                      B．what                  C．which                  D．if
5．A．dream                   B．idea                   C．girl                      D．speaker
6．A．After                    B．Before               C．Because                D．While
7．A．beginning             B．working             C．acting                  D．regarding
8．A．life                       B．love                   C．income                 D．career
9．A．disappointed          B．moved               C．surprised              D．delighted
10．A．when                  B．why                   C．if                         D．how
11．A．plan                    B．promise              C．decision               D．mind
12．A．attending             B．joining               C．entering               D．holding
13．A．newspaper           B．book                  C．report                  D．speech
14．A．day                     B．second               C．week                    D．moment
15．A．help                    B．job                    C．god                      D．company
16．A．everything           B．anything             C．nothing                D．something
17．A．alive                   B．dead                  C．missing                D．born
18．A．examined            B．searched             C．checked                D．tested
19．A．help                    B．harm                  C．income                 D．money
20．A．selling                B．speaking             C．writing                 D．listening