- 单选题Many forms of cancer can be cured if detected early.
- 单选题Puerto Rican Cuisine (菜肴） Puerto Rico, a Caribbean (加勒比海地区)island rich in history and remarkable natural beauty, has a cuisine all its own. Immigration (移民)to the island has helped to shape its cuisine, with people from all over the world making various contributions to it However, before the arrival of these immigrants, the Taino people lived on the island of Puerto Rico. Taino cuisine included such foods as rodents (啮齿动物),fresh shellfish and fish fried in corn oil. Many aspects of Taino cuisine continue today in Puerto Rican cooking, but it has been heavily influenced by the Spanish, who invaded Puerto Rico in 1508，and Africans, who were initially brought to Puerto Rico to work as slaves. Taino cooking styles were mixed with ideas brought by the Spanish and Africans to create new dishes. The Spanish extended food choices by bringing cattle, pigs, goats, and sheep to the island. Africans also added to the island’s food culture by introducing powerful, contrasting tastes in dishes. In fact, much of the food Puerto Rico is now famous for—coffee , coconuts, and oranges — was actually imported by foreigners to the island. A common assumption many people make about Puerto Rican food is that it is very spicy (辛辣的).It’s true that chili peppers are popular;aij caballero in particular is a very hot chili pepper that Puerto Ricans enjoy. However, milder (微辣的)tastes are popular too, such as sofrito. As the base of many Puerto Rican dishes, sofrito is a sauce made from chopped onions, green bell peppers, sweet chili peppers, and a handful of other spices. It is fried in oil and then added to other dishes. Who lived in Puerto Rico first?
- 单选题The high-speed trains can have a major impact on our lives.
- 单选题They converted the spare bedroom into an office.
- 单选题How Technology Pushes Down Price 1 Prices have fallen in the food business because of advances in food production and distribution technology. Consumers have benefited greatly from those advances. People who predicted that the world would run out of food were wrong. We are producing more and more food with less and less capital. Food is therefore more plentiful and cheaper than it has ever been. Spending on food compared with other goods has fallen for many years，and continues to drop. 2 Supermarkets have helped push down prices mainly because of their scale. Like any big business，they can invest in IT systems that make them efficient. And their size allows them to buy in bulk. As supermarkets get bigger，the prices get lower. 3 Huge retail companies such as Wal-Mart have tremendous power and they can put pressure on producers to cut their margins. As a result，some producers have had to make cuts. In recent years，Unilever has cut its workforce by 33，000 to 245,000 and dropped lots of its minor brands as part of its “path to growth” strategy. Cadbury has shut nearly 20 per cent of its 133 factories and cut 10 per cent of its 55，000 global workforce These cuts help keep costs down，and the price of food stays low. 4 Does cheap food make people unhealthy? Cheap food may encourage people to eat more. Food companies certainly think that giving people more food for their money makes them buy more. Giving people bigger portions is an easy way of making them feel they have got a better deal. That is why portions have got larger and larger. In America，soft drinks came in 8oz (225g) cans in the past，then 12oz (350g)，and now come in 20oz (550g) cans. If a company can sell you an 8oz portion for $7，they can sell you a 12oz portion for $8. The only extra cost to the company is the food, which probably costs 25 cents. 5 Now companies are under pressure to stop selling bigger portions for less money. But it is hard to change the trend. Paragraph 4
- 单选题The contempt he felt for his fellow students was obvious.
- 单选题It is important for families to observe their traditions even as their children get older.（）
- 单选题He went to attend the party with decent clothes.（）
- 单选题The project required ten years of diligent research.（）
- 单选题A young man is being hailed a hero tonight after rescuing two children.
- 单选题The government warned the people of being careful about this kind of contagious disease.（）
- 单选题They converted the spare bedroom into an office.（）
- 单选题I rarely visit my parents after I obtained a decent job in this company.（）
- 单选题I enjoyed the play-- it had a clever plot and very funny dialogues.（）
- 单选题He tried every way to fred out the answer to that question.（）
- 单选题Teaching and Learning Many teachers believe that the responsibilities for learning lie with the student. If a long reading assignment is given, instructors expect students to be {pz_填空}(51) with the information in the reading even if they do not discuss it in class or {pz_填空}(52) an examination. The ideal student is{pz_填空}(53) to be one who is motivated to learn for the sake of learning, not the one interested only in getting high {pz_填空}(54). Sometimes homework is returned with brief written {pz_填空}(55) but without a grade. Even if a grade is not given, the student is {pz_填空}( 56 ) for learning the material assigned. When research is {pz_填空}(57), the professor expects the student to take it actively and to complete it with minimum {pz_填空}(58). It is the student’s responsibility to find books, magazines, and articles in the library. Professors do not have the time to {pz_填空} (59) how a university library works; they expect students to exhaust the {pz_填空}(60) resources in the library. Professors will help students who need it, {pz_填空}(61) prefer that their students should not be too {pz_填空}(62) on them. In the United States professors have many other {pz_填空}(63) besides teaching, such as administrative or research work. Therefore, the time that a professor can spend {pz_填空}(64) a student outside of class is limited. If a student has problems with classroom work, the student should either {pz_填空}(65) a professor during office hours or make an appointment.
- 单选题Steep stairs can present a particular hazard to older people.（）
- 单选题At that time, we did not fully grasp the significance of what had happened.（）
- 单选题Your dog needs at least 20 minutes of vigorous exercise every day.（）
- 单选题This species has nearly died out because its habitat is being destroyed.
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