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Passage D

Nearly a century ago, biologists found that if they separated an invertebrate animal embryo into two parts at an early stage of its life, it would survive and develop as two normal embryos. This led them to believe that the cells in the early embryo are undetermined in the sense that each cell has the potential to develop in a variety of different ways. Later biologists found that the situation was not so simple. It matters in which plane the embryo is cut. If it is cut in a plane different from the one used by the early investigators, it will not form two whole embryos.
A debate arose over what exactly was happening. Which embryo cells are determined, just when do they become irreversible committed to their fates, and what are the "morphogenetic determinants" that tell a cell what to become But the debate could not be resolved because no one was able to ask the crucial questions in a form in which
A. State legislators deciding about funding levels for a state-funded biological laboratory.
B. Readers of an alumni newsletter published by the college that Paul Gross attended
C. Marine biologists studying the processes that give rise to new species.
D. Undergraduate biology majors in molecular biology cours

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Passage D

Nearly a century ago, biologists found that if they separated an invertebrate animal embryo into two parts at an early stage of its life, it would survive and develop as two normal embryos. This led them to believe that the cells in the early embryo are undetermined in the sense that each cell has the potential to develop in a variety of different ways. Later biologists found that the situation was not so simple. It matters in which plane the embryo is cut. If it is cut in a plane different from the one used by the early investigators, it will not form two whole embryos.
A debate arose over what exactly was happening. Which embryo cells are determined, just when do they become irreversible committed to their fates, and what are the "morphogenetic determinants" that tell a cell what to become But the debate could not be resolved because no one was able to ask the crucial questions in a form in which
A. evenly distributed unless the embryo is not developing normally
B. inactive until the embryo cells become irreversibly committed to their final function
C. identical to those that were already present in the unfertilized egg
D. present in larger quantities thanis necessary for the development of a single individual

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[单项选择]Passage One Nearly a quarter-century after a German boy tossed a message in a bottle off a ship in the Baltic Sea, he’s received an answer. A 13-year-old Russian. Daniil Korotkikh, was walking with his parents on a beach when he saw something glittering lying in the sand. "I saw that bottle and it looked interesting, " Korotkikh told The Associated press on Tuesday. "It looked like a German beer bottle with a ceramic plug, and there was a message inside.” His father. who knows it little German. translated the letter. It said: "My name is Frank. and I’m five years old. My dad and I are traveling oil a ship to Denmark. If you find this letter. please write back to me. and I will write back to you. " The letter. dated 1987. included an address in the town of Coesfeld. The boy in the letter. Frank Uesbeck. is now 29. His parents still live at the letter’s address. "At first I didn’t believe it." Uesbeck told the AP about getting the response from Korotkikh. In fact, he barely rememb
A. 25
B. 24
C. 29
D. 20

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[单项选择]Passage 1 Nearly a quarter-century after a German boy tossed a message in a bottle off a ship in the Baltic Sea, he’s received an answer. A 13-year-old Russian, Daniil Korotkikh, was walking with his parents on a beach when he saw something glittering lying in the sand. “I saw that bottle and it looked interesting, ” Korotkikh told The Associated Press on Tuesday. “It looked like a German beer bottle with a ceramic plug, and there was a message inside.” His father, who knows a little German, translated the letter. It said：“My name is Frank , and I’m five years old. My dad and I are traveling on a ship to Denmark. If you find thes letter, please write back to me , and I will write back to you.” The letter, dated 1987,included an address in the town of Coesfeld. The boy in the letter, Frank Uesbeck , is now 29. His parents still live at the letter’s address. “At first I didn’t believe it,” Uesbeck told the AP about getting the response from Korotkikh. In fact, he barely remembered
A. 25
B. 24
C. 29
D. 20

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[单项选择]PASSAGE TWO About a century ago more people would not have appreciated the study of a foreign language as they do today. Gone are those days when patriotism towards one’s own language was a major obstacle to learning foreign languages, a time when most nations were trying to throw their alien rulers out of their countries in their freedom struggles.Gone are those days when people were proud of their mother or father tongues and considered that their native languages alone will suffice the need to survive. Language skills today have become as important as other business and career skills like IT, vocational or professional skills. Thus learning a foreign language today has become essential for an individual whether it is for careers, growing a business, or even to make an impression. All that one needs to possess these days is a drive to learn a foreign language and there are all kinds of institutes and courses that teach various foreign languages like French, German, Spanish, and J
A. People’s language skills are better than in the past.
B. Foreign language skills are of vital importance.
C. It’s easier nowadays to learn a foreign language.
D. People today are not proud of their native language.

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