s="" needs.="" but="" today="" the="" delicious="" seafood="" is="" no="" longer="" available="" in="" abundance.="" problem="" has="" become="" so="" serious="" that="" some="" oyster="" beds="" have="" vanished="" entirely.Fortunately, as far back as the early 1900's marine biologists realized that if new measures were not taken, oysters would become extinct or at best a luxury food. So they set up well-quipped hatcheries and went to work. But they did not have the proper equipment or the skill to handle the eggs. They did not know when, what, and how to feed the larvae. And they knew little about the predators that attacked and ate baby oysters by the millions. They failed, but they doggedly (努力) kept at it. Finally, in the 1940's a significant breakthrough was made.The marine biologists discovered that by raising the temperature of the water, they could induce oysters to lay eggs not only in the summer but also in the fall, winter, and spring. Later they developed a technique for feeding the larvae and rearing them to spat. Going still further, they succeeded in breeding new strains that were resistant to diseases, grew faster and larger, and flourished in water of different salinities (盐分) and temperatures. In addition, the cultivated oysters tasted better!1.Which of the following would be the best title for the passage?2.At what stage of oysters did farmers begin to speed up their growth and fatten them up in the past?3.According to the passage, which of the following words best describes the efforts of the marine biologists working with oysters?4.In the passage, the author mentions that the new strains of oyster are（ ）.5.Which of the following best describes the organization of the passage?'>

In the past oysters were raised in much the same way as dirt farmers raised tomatoes—by transplanting them. First, farmers selected the oyster bed, cleared the bottom of old shells and other remains, and then scattered clean shells about. Next they “planted” fertilized oyster eggs, which within two or three weeks hatched into larvae. The larvae drifted until they attached themselves to the clean shells on the bottom. There they remained and in time grew into baby oysters called seed or spat (贝卵). The spat grew larger by drawing in seawater from which they derived microscopic particles of food. Before long, farmers gathered the baby oysters, transplanted them in other waters to speed up their growth, and then transplanted them once more into another body of water to fatten them up.Until recently the supply of wild oysters and those crudely farmed were more than enough to satisfy people's needs. But today the delicious seafood is no longer available in abundance. The problem has become so serious that some oyster beds have vanished entirely.Fortunately, as far back as the early 1900's marine biologists realized that if new measures were not taken, oysters would become extinct or at best a luxury food. So they set up well-quipped hatcheries and went to work. But they did not have the proper equipment or the skill to handle the eggs. They did not know when, what, and how to feed the larvae. And they knew little about the predators that attacked and ate baby oysters by the millions. They failed, but they doggedly (努力) kept at it. Finally, in the 1940's a significant breakthrough was made.The marine biologists discovered that by raising the temperature of the water, they could induce oysters to lay eggs not only in the summer but also in the fall, winter, and spring. Later they developed a technique for feeding the larvae and rearing them to spat. Going still further, they succeeded in breeding new strains that were resistant to diseases, grew faster and larger, and flourished in water of different salinities (盐分) and temperatures. In addition, the cultivated oysters tasted better!1.Which of the following would be the best title for the passage?2.At what stage of oysters did farmers begin to speed up their growth and fatten them up in the past?3.According to the passage, which of the following words best describes the efforts

Many private institutions of higher education around the country are in danger. Not all will be saved, and perhaps not all deserve to be saved. There are low-quality schools just as there are low-quality businesses. We have no obligation to save them simply because they exist.But many thriving institutions that deserve to continue are threatened. They are doing a fine job educationally, but they are caught in a financial squeeze, with no way to reduce rising cost or increase revenues significantly. Raising tuition doesn’t bring in more revenue, for each time tuition goes up, the enrollment goes down, or the amount that must be given away in student aid goes up. Schools are bad businesses, whether public or private, not usually because of mismanagement but because of the nature of the enterprise. They lose money on every customer, and they can go bankrupt either from too few students or too many students. Even a very good college is a very bad business.It is such colleges, thriving but threatened, I worry about low enrollment is not their chief problem. Even with full enrollments, they may go under. Effects to save them and preferably to keep them private, are national necessities. There is no basis for arguing that private schools are inherently better than public schools. Examples to the contrary abound.Anyone can name state universities and colleges that rank as the finest in the nation and the world. It is now inevitable that public institutions will be dominant, and therefore diversity is a national necessity. Diversity in the way we support schools tends to give us a healthy diversity in the forms of education. In an imperfect society such as ours, uniformity of education throughout the nation could be dangerous. In an imperfect society, diversity is a positive good. Ardent supporters of public higher education know the importance of sustaining private higher education.1.In the author’s opinion, schools are bad business because of（ ）.2.The author used the phrase “go under” in the third paragraph to mean （ ）.3.We can reasonably conclude from the passage that the author made an appeal to the public in order to support （ ）.4.Which of the following is not mentioned?

A.Mismanagement B.too few students C.too many students D.the nature of schools
问题2：
A.get into difficulties B.have low enrollment C.have low tuition D.bring in more money
问题3：
A.public institutions B.private schools C.uniformity of education D.equality of education
问题4：
A.High-quality private schools deserve to be saved. B.If the tuition is raised, the enrollment goes down. C.There are many cases that public schools are better than private schools. D.Private schools have more money than public schools.

Beth never regretted （ ） to attend the party, for she did not like it at all.

A.not being invited B.being not invited C.having not been invited D.not having been invited

However, growth in the fabricated metals industry was able to（ ） some of the decline in the iron and steel industry.

A.overturn B.overtake C.offset D.oppress

especially="" to="" the="" northwest="" of="" nuclear="" power="" plant,="" researchers="" said.="" study="" looked="" at="" caesium-137,="" which="" has="" a="" half-life="" 30="" years="" and="" therefore="" affects="" environment="" for="" decades.The legal limit for concentrations in soil where rice is grown of the sum of caesium-134 and caesium-137, which are always produced together, is 5,000 becquerels per kilogram in Japan. ‘The east Fukushima area exceeded this limit and some neighboring areas such as Miyagi, Tochigi and Ibaraki are partially close to the limit under our upper-bound estimate," the study said. "Estimated and observed pollution in the western parts of Japan were not as serious, even though some areas were likely affected to some extent," it added."Concentration in these areas are below 25 becquerels per kilogram, which is far below the threshold for farming. However, we strongly recommend each area to quickly carry out some supplementary soil samplings at city levels to validate our estimates."The study said ‘food production in eastern Fukushima area is likely severely impaired by the caesium-137 loads of more than 2,500 becquerels per kilogram’.The study was led by Teppei Yasunari of the Universities Space Research Association in the US state of Maryland. He and his team used daily observations in. each Japanese area and computer-simulated particle dispersion, models based on weather patterns.Japan has been on alert for the impact of radiation since an earthquake and resulting tsunami struck the northeast of the country on March 11, damaging the Fukushima Daiichi nuclear power plant. Its cooling systems were knocked offline and reactors were sent into meltdown, resulting in the leaking of radiation, into the air, oceans and food chain.Shipments of a number of farm products from the affected regions were stopped and even those that were not subject to official controls have found little favor with Japanese consumers cautious of the potential health effects.1.According to the passage, which of the following statement is correct?2.Fukushima atomic disaster’s direct cause is（ ）.3.The radiation didn’t go into （ ）.4.According to the last paragraph, which attitude does the Japanese have?'>

Farmland in parts of Japan is no longer safe because of high levels of radiation in the soil, scientists have warned, as the country struggles to recover from the Fukushima atomic disaster. A team of international researchers said food production would likely be "severely impaired" by the elevated levels of caesium （放射性铯）found in soil samples across eastern Fukushima in the wake of meltdowns at the tsunami-hit plant. The study suggests farming in neighboring areas may also suffer because of radiation, although levels discovered there were within legal limits. "Fukushima area as a whole is highly polluted,*' especially to the northwest of the nuclear power plant, the researchers said. The study looked at caesium-137, which has a half-life of 30 years and therefore affects the environment for decades.The legal limit for concentrations in soil where rice is grown of the sum of caesium-134 and caesium-137, which are always produced together, is 5,000 becquerels per kilogram in Japan. ‘The east Fukushima area exceeded this limit and some neighboring areas such as Miyagi, Tochigi and Ibaraki are partially close to the limit under our upper-bound estimate," the study said. "Estimated and observed pollution in the western parts of Japan were not as serious, even though some areas were likely affected to some extent," it added."Concentration in these areas are below 25 becquerels per kilogram, which is far below the threshold for farming. However, we strongly recommend each area to quickly carry out some supplementary soil samplings at city levels to validate our estimates."The study said ‘food production in eastern Fukushima area is likely severely impaired by the caesium-137 loads of more than 2,500 becquerels per kilogram’.The study was led by Teppei Yasu

His whole attitude had undergone a（ ）change.

A.miniature B.subtle C.few D.little