Sarah regrettedchatting online after her online friend turned out to be a boy from her class playing a joke on her．题目和参考答案——青夏教育精英家教网—

题目内容

16．Sarah regrettedchatting （chat） online after her online friend turned out to be a boy from her class playing a joke on her．

分析 Sarah 的网友结果是本班一个男同学故意捉弄她，她开始后悔在网上聊天了．

解答答案：chatting
表示后悔做过某事，用regret+doing来表达，故答案为chatting．

点评考生需熟记一些常见动词的短语，在具体语境中灵活使用．

练习册系列答案

7．Serious reading，in _____ form it may take，has its place in the advance of human civilization．（　　）

4．Last week I visited one of my old neighborhoods in Washington D．C．I had not been there for twenty years and as I walked along the street，my mind was flooded by memories of the past．I saw the old apartment building where I had lived and the playground where I had played．As I viewed these once familiar surroundings，images of myself as a child there came to mind．However，what I saw and what I remembered were not the same．I sadly realized that the best memories are those left untouched．
My old apartment building，as I remember，was bright and alive．It was more than just a place to live．It was a movie house，a space station，or whatever my young mind could imagine．I would steal away with my friends and play in the basement．This was always exciting because it was so cool and dark，and there were so many things there to hide among．There was a small river in the back of the building．We would go there to lie in the shade of trees and enjoy ourselves．
However，what I saw was completely different．The apartment building was now in disrepair．What was once more than a place to live looked hardly worth living in．The windows were all broken．The once clean walls were covered with dirty marks．The river was hardly recognizable．The water was polluted and the trees and flowers were all dead．The once sweet-smelling river now smelled terrible．It was really heartbreaking to see all this．
I do not regret having seen my old neighborhood．However，I do not think my innocent childhood memories can ever be the same．I suppose it is true when they say，"You can never go home again．"
54．In the first two paragraphs of the passage the writer tells us thatD．
A．he was very imaginative when he was a child
B．he came from a very poor neighborhood
C．he lived in Washington D．C．for twenty years
D．he had pleasant memories of his old neighborhood
55．How did the writer feel when he visited his old neighborhood in Washington D．C．？B
A．Quite excited．
B．Very sad．
C．Very regretful．
D．Greatly surprised．
56．"You can never go home again"in the last sentence of the passage means thatC．
A．a visit to one's hometown will bring back many sad memories
B．one should never revisit his hometown after many years of absence
C．one will never find his hometown the same as it was in his childhood memory
D．a visit to one's hometown will bring back one's pleasant memories of home．

11．It's really annoying to bebetrayed（背叛） by your close friend．

1．The tiger population in this forest is three times larger than that of ten years ago．
The tiger population in this forest has grown to three timeswhat it was ten years ago．

8．The bridge is not open to the traffic，because itis being repaired （repair） now．

5．Along with the letter was his promise which he would visit me this coming Christmas．which--that．

9．Going soy is the way to go green
In 1829，U．S．farmers grew soybeans （大豆） for the first time．In the late 1800s，lots of farmers began to grow soybeans as food for cattle．In 1904，at the Tuskegee Institute in Alabama，George Washington Carver began studying the soybean．His discoveries changed the way people thought about the soybean．No longer was it just a crop for cattle； it provided valuable protein and oil．Now soybean oil is the most popular source for an alternative fuel．
Fueling diesel （柴油） engines with vegetable oil started with the inventor Rudolf Diesel．When Diesel showed his engine at the 1900World Exhibition in Paris，it was running only on peanut oil，a kind of biodiesel．According to the United Soybean Board，biodiesel is a fuel made from vegetable oils or animal fats．
However，over the next 100years，diesel fuel was made largely from petroleum （石油）．Interest was renewed in biodiesel in the mid-1970s when the energy shortage occurred，and gas prices surged upward throughout the United States．In spite of these conditions，commercial production did not take place until much later．In 1999，The National Biodiesel Board reported that 500，000gallons per day were produced．In 2000，production increased to 6.7million gallons per day．
With the continual rising costs of petroleum products in the new century，major corporations and the United States government have looked to new markets．Farmers are encouraged to grow soybeans in their fields，as the demand for soybean fuel increases．They can now get several gallons of fuel per acre of soybean．
Biodiesel is created by removing a thick liquid called glycerin from soybean oil．It is registered with the US Environmental Protection Agency as a pure fuel，which is known as B100，or as a fuel additive，which is called B20，a mixture of 20percent soy and 80percent petroleum-based diesel．
There are many benefits of soybean fuel．
Studies have shown that biodiesel from vegetable oil reduces petroleum consumption when used in place of petroleum diesel．
In addition，the use of biodiesel reduces CO2in the earth's atmosphere．This is due to the fact that growing soybeans consumes nearly four times as much CO2as the amount of CO2produced from biodiesel waste gases．
If you ever want to take a ride in a car or bus powered by soybeans，you can．The Agriculture Research Center （ARS ） National Visitor Center bus，which is used for Beltsville，Maryland farm tours，is running on biodiesel fuel．
ARS scientists are conducting biodiesel fuel research，and they are trying to find ways to make fuel from vegetable oils，animal fats，and used restaurant oils．
Biodiesel fuel costs more than regular diesel fuel．However，the price may drop if people use it more．We can look to the future with the hope that clean fuel sources will continue to be widespread in the United States and even around the world．

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