日日人人_亚洲美女在线视频_av手机在线播放_国产大片aaa_欧美中文日韩_午夜理伦三级

1 My parents always e____________ me to try again when I fail the exam.

2. The river polluted by the dirty water from London was to b_________ for the outbreak of Cholera.

3. I like English very much. It is my f__________subject.

4. Charlie Chaplin acted a man who was unlucky but determined to o_________ all difficulties.

5. Tony is very clever and always wins the first prize, so his mother is very p______ of him.

6. The old man was a_____________ in reading the book and didn’t hear the bell.

7. He felt a little n_________ when it was his turn to speak at the meeting.

8. After graduating from Zhejiang University, Tom went a_________ and found a job in the USA.

9. December is the t_________ month of the year.

10. Books are my best friends. They give me k________ and make me happiness.

1 My parents always e____________ me to try again when I fail the exam.
2. The river polluted by the dirty water from London was to b_________ for the outbreak of Cholera.
3. I like English very much. It is my f__________subject.
4. Charlie Chaplin acted a man who was unlucky but determined to o_________ all difficulties.
5. Tony is very clever and always wins the first prize, so his mother is very p______ of him.
6. The old man was a_____________ in reading the book and didn’t hear the bell.
7. He felt a little n_________ when it was his turn to speak at the meeting.
8. After graduating from Zhejiang University, Tom went a_________ and found a job in the USA.
9. December is the t_________ month of the year.
10. Books are my best friends. They give me k________ and make me happiness.

 Complete the following passage by using the words in the box. Each word can only be used once. Note that there is one word more than you need.

Big climate changes in the last million years might have come from something very small: dust from outer space.

   Earth changes between ice ages and warm periods in a(n) __1.__ that includes several cycles, including a __2._ one that lasts 100,000 years. Scientists __3.__suggested this cycle might be due to changes in the inflow of cosmic(????) dust.

   The idea is that Earth _4.__above and below the imaginary plane that runs through the sun and Jupiter(???), completing a cycle every 100,000 years. So maybe it encounters __5._varying amounts of dust during each cycle that produce the climate trend.

   Now there is some __6.__, from ancient cosmic dust recovered in ocean-floor drilling near the Azores islands west of Portugal. The large quantity of the dust rises and falls with a wonderful 100,000 year cycle during the period analyzed, 253,000 years to 458,000 years ago. Periods of more dust are related to__7.__ climates.

   But that is a long way from showing that the dust __8.__ climate. Some scientists argue that it is not clear how cosmic dust would make the climate warmer while dust from volcanoes is known to make it cooler. They say the cosmic dust is so thin that it is hard to see how it could have any climate__9.__.

   Nevertheless, the new study shows scientists have to take the cosmic dust idea seriously.

Suppose that we lined up our roughly 14 million United States businesses in order of size, starting with the smallest, along an imaginary road from San Francisco to New York. There will be 4,500 businesses to the mile, or a little less than one per foot. Suppose further that we planted a flag each business. The height of the flag pole represents the yearly volume of sales (銷量) , each $ 10, 000 in sales in shown by one foot of pole.

The line of flagpoles is a very interesting sight. From San Francisco to about Reno, it is almost unnoticeable, a row of poles about a foot high. From Reno eastward the poles increase in height until, near Columbus, Ohio - about four - fifths of the way across the nation - flags fly about 10 feet in the air.

But as we approach the eastern terminus (終點) , the poles suddenly begin to mount (升高) . There are about 300, 000 firms in the country with sales over $ 500, 000. These firms take up the last 75 miles of the 3,000 - mile road. There are 200, 000 firms with sales over $ 1 million. They take up the last 50 miles. Then there are 1, 000 firms with sales of $ 50, 000, 000 or more. They take up the last quarter of a mile before the city limits, flags flying at cloud height, 5 , 000 feet up .

At the very gate of New York, on the last 100 feet of the last mile , we find the 100 largest industrial firms . They have sales of at least $ 1.5 billion, so that their flags are already miles high. Along the last 10 feet of road , there are 10 largest companies . Their sales are roughly $ 10 billion and up : their flags fly 190 miles in the air , almost in the stratosphere (平流層) .

1.What is the author’s main purpose in this passage?

A．To tell the reason why the largest firms are in New York.

B．To show the geographical distribution (分布) of the United States businesses.

C．To provide a general idea of the size of businesses in the United States.

D．To tell us how the United States businesses are arranged.

2.What’s the correct order of the following places from east to west?

A．San Francisco, Reno, New York, Columbus.

B．San Francisco, Reno, Columbus, New York.

C．New York, Columbus, Reno, San Francisco

D．New York, Reno, Columbus, San Francisco

3.Among the four parts of the imaginary road , which part , considering all the firms in it , has the largest total volume of sales ?

A．The last 75 miles.                        B．The last 50 miles.

C．The last 100 feet of the last mile.            D．The last quarter of a mile

4.Which of the following diagrams (圖表) shows the right order of size of the US businesses , according to the text ?

S =" San" Francisco  R =" Reno"  C =" Columbus"  N =" New" York  H =" height"  F = feet