题目
题型：甘肃省模拟题难度：来源：
fact hard to believe, though. Two new studies show that in America"s heartland, summers are now cooler
and wetter than they were in years past. The scientists suggest that the change in the Midwest climate
may have happened because of farming.
The first study was led by David Changnon, a climatologist at Northern Illinois University in DeKalb.
A climatologist studies the climate of an area, which includes measuring rainfall, temperature and wind.
Climatologists want to know how these factors have changed in the past, and how they will change in the
future.
Changnon and his team studied temperature records from Chicago and 13 other sites in the Midwest.
"These two changes -lower temperatures and more rainfall-may be connected by humidity," Changnon
says. Humidity is the measure of how much moisture is in the air. Humid air, which contains a lot of
moisture, takes longer to heat up than dry air.
So where did the extra moisture in the air come from? Changnon points to farms in the region. As
plants grow, they pull moisture from the ground and release it into the air. And among plants, soybean
and corn plants release a lot of moisture. Midwestern farms now plant more soybeans and corn than in
the past, with 97 percent of farmland today planted with these two crops. He also notes that the plants
are planted closer together now than they used to be, so there are more plants per acre than in the past.
The second study was led by famous scientists from the US. The researchers studied a vast area of
the United States that stretches from South Dakota to Oklahoma and the Texas panhandle. They found
that in 1930, farmers in that region irrigated only about 1.8 million acres of farmland, an amount roughly
half the size of Connecticut. In 1980, however, farmers irrigated nearly 15 million acres-more land than
Vermont and New Hampshire combined.
B. It means that the rain is heavier than before
C. It means that the weather is cooler and there is also more rainfall than before
D. It means that our mind should be changed about farming in the future
B. farmers irrigated nearly 15 million acres in 1930
C. we must plant more trees in order to protect our environment
D. the climatologists have told us two aspects about the reason for the climate change
B. rainfall
C. water
D. steam
B. The Analysis for the Weather
C. Why Climate in Midwest Is Changing
D. The Importance for Plants and Irrigation
答案
核心考点
试题【阅读理解。 The average temperature around the world is rising. People living in t】；主要考察你对题材分类等知识点的理解。[详细]
举一反三
Last year almost forty thousand Chinese students were accepted into undergraduate programs in America. That was a fifty percent increase over the year before and four times the number of undergraduate
students just five years ago.
More Chinese students want to go to American universities and more American universities want them
to come. For Chinese students it"s a chance to get a good education and for American universities it"s a
chance to, well, make a lot of money. American universities received $26 billion in tuition fees from
International students last year. It"s an important part of their revenue. The tuition fees for foreign students
are far higher than for domestic students. For example, the State University of New York (SUNY)
charges local students less than $5,000 a year and foreign students more than $13,000 a year.
Places like SUNY are easy to get into. They don"t look too closely at your academic record and they
accept lower TOEFL and SAT*scores. But once you"re in, it gets difficult. You have to take a lot of
courses, attend lectures, participate in seminars, write essays and give presentations-all in English! The
professors don"t change their teaching styles and will not lower their standards to accommodate foreign
students.
Many Chinese students struggle to keep up with the workload. Some drop out and about five percent
fail and have to come back home. It"s not surprising because getting a degree from an American university
is difficult even for American students. Only slightly more than fifty percent of American students graduate
in four years from the university they enrolled in. Some will take five or six years to get the credits they
need to graduate. Chinese students work much harder than their American counterparts but language is a
big stumbling block for them. If you want to succeed at an American university, your English must be very, very good. At American universities, getting in is easy; getting out is hard.
America five years ago.
B. 8,000
C. 4,000
D. 10,000
B. Getting a degree from an American university isn"t difficult for local students.
C. Professors in American universities will change their teaching style to make it easier for foreign students.
D. Though Chinese students work much harder, language is an obstacle anyway.
B. The first sentence in Para. 2.
C. The last sentence in the last paragraph.
D. The third sentence in the last paragraph.
B. To warn that American universities charge foreign students too much money.
C. To warn that you won"t learn anything in American universities.
D. To warn that it"s not so easy to get a diploma from American universities.
A mini projector today has been fitted with top of the line parts and high quality materials to ensure its efficiency and performance can meet the demands of whoever it is for. It is so designed that it can be used indoors or outdoors with the same functions. The mini projector, as the name suggests, is handy and compact and can easily be brought anywhere by just one person. It can support a broader scope of signals now; USB and card readers are now installed to cope with the pieces of equipments that people use today to store data.
It can be used at home where it can provide as a form of entertainment or start a conversation during family bonding times. The owner can easily use the mini projector to share with other members the photos and videos of one particular vacation, or just to play a series of beautiful landscapes.
Offices also benefit from a mini projector especially during an important meeting or presentation. With at par resolution (标准的分辨率), employees can easily decipher (辨认) the text or data with the use of a mini projector, its bright LED light is sufficient enough to provide a bright and clear image without distortion (变形). Users can now bring this anywhere with them and can be especially useful on a location where the voltage (电压) is unknown.
Perhaps one of the more common places where a mini projector is used constantly is in schools. Teachers or professors use this as an aid to a lesson or discussion to provide better visual aids than usual and to even deliver their lecture with the use of a mini projector and minimize the use of a board and writing pen. It is often said that children have a very short attention span but they remember things more when things are presented to them visually. This is the perfect use of a mini projector in classrooms where kids easily forget their lesson for the day. Teachers use this to show the class pictures or illustrations that tie with the topics for students to remember.
| Title | The mini projector and its uses | |||||||||||||
| Theme | (1)_______ many other devices in this fast changing world, mini projectors are still widely used though there are newer and more modern inventions. | |||||||||||||
| Extra (2)___ | ·It works efficiently and can meet the specific demands of its(3)_______. ·(4) ______ used indoors or outdoors, the mini project remains the same function. ·Handy and compact, it"s easy for a single person to carry wherever he likes. ·It (5)______ a broader scope of signals. What"s more, people can use it to store data by (6)____ USB and card readers. | |||||||||||||
| The (7)_______ of a mini projector | ·A mini projector makes family times more interesting, allowing family members to (8)__ themselves. ·With a mini projector, employees have little (9)______ in explaining the text or data at an important meeting or presentation. ·Aided by a mini projector, teachers and professors can present a lesson or discussion visually, which will help students achieve (10)_____ study results. | |||||||||||||
| 根据短文内容，从下框的A-F选项中选出能概括每一段主题的最佳选项。选项中有一项 为多余选项。 | ||||||||||||||
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