【正文】 kid. He moved to the Netherlands and majored in Biological Chemistry in the University of Leiden. It was this university that directed his interest in the synthesis (合成) of nucleotides, the basic units that are required to build a DNA. At that time, not many researchers studied the bination of genes (基因)，but Roberto’s strong chemistry background made a historical invention possible.In 1977, he joined the Genentech, Inc. and the gene synthesis team at City of Hope Medical School. The pany funded Dr. Crea’s ongoing research on gene synthesis. After working day and night, the brilliant individual finally invented a new procedure that improved the chemical synthesis of genes. Thanks to his rich knowledge and the joint efforts of the excellent Genentech team, he made use of this discovery to produce the human Insulin (胰島素) genes, A and B. It was his invention that allowed Genentech to be labeled as the first producer of human protein. This benefitedhundreds of millions of people suffering from diabetes (糖尿病) all over the world.Today Roberto is known as the father of synthetic insulin and had almost won the Nobel Prize. His efforts did not stop after discovering the synthetic insulin。s invention of the human insulin?A. His good luck in his life.B. His curiosity about his study.C. His creative imagination.D. His knowledge of chemistry.5. What do the underlined words “this discovery” in Paragraph 2 refer to?A. A special way of producing human protein ,B. A reliable method for curing people of diabetes.C. A new procedure for improving gene synthesis.D. A simple technique of separating human genes.6. What do we know about Roberto in Paragraph 3?A. He won a Nobel Prize.B. He stuck to his scientific research.C. He discovered morphine with his team.D. He retired after making the great discovery.7. Which of the following best describes Roberto?A. Enthusiastic and generous.B. Courageous and calm.C. Ambitious and patient.D. Devoted and talented.【答案】4. D 5. C 6. B 7. D【解析】【分析】本文是一篇記敘文?！?題詳解】細節(jié)理解題。故選D項。根據(jù)文章第二段畫線詞上文“After working day and night, the brilliant individual finally invented a new procedure that improved the chemical synthesis of genes.（在日夜工作之后，這位才華橫溢的人終于發(fā)明了一種新的方法，改進了基因的化學(xué)合成。故選C項。通過文章第三段“His efforts did not stop after discovering the synthetic insulin。）”可推知，Roberto堅持他的科學(xué)研究?！?題詳解】推理判斷題。）”可知，Roberto Crea是有天賦的。）”可推知，Roberto Crea全心全意地投身在自己的研究領(lǐng)域之中。CSometime back, after a sixyearold lioness named Magigi repeatedly killed cattle, Botswana authorities caught and moved her into Central Kalahari Game Reserve, far from people. Magigi spent most of her time within the reserved protective boundaries, but after a year she escaped outside and was shot dead by a farmer. New research Maude and his colleagues have conducted confirms that Magigi39。 living.Across Africa, lion numbers have fallen by 43 percent in the past two decades, to as few as 23,000 animals today. About 3,000 remain in Botswana. The sharp declines are primarily driven by developmentlions now occupy just 8 percent of their historic habitat. With less space set aside for conservation, lions are more frequently ing into contact with humans. These are usually farms, expanding around the edges of the protected areas. The lions eat livestock, which negatively impacts the livelihood of the farmers in these rural areas. Without a proper way to prevent these attacks, the dinners often turn to deadly force, shooting or poisoning the lions, which has resulted in the decrease in lion population.Rather than trying to move lions, wildlife conservationist Glyn Maude says, emphasis should be placed on reducing the chances of lions encountering and killing livestock in the first place. Many preventative measures are being tested in various African countries, including hiring lion guardians (護衛(wèi)者) to monitor these big cats, creating lionproof fences, sending out lion text alerts, and teaching herders to keep livestock away from highrisk areas.8. Why was Magigi moved to a reserve?A. To stop her from being caught.B. To prevent her from killing cattle.C. To get her to stay with her family.D. To train her to get along with people.9. What is the major reason for the decline in the lion population in Africa?A. Illegal wildlife trade. B. Humanlion conflict.C. A natural disaster. D. The lack of food in their habitat.10. What can we infer from Maude39。 attacking livestock.D. It39。 Relocation Proving DeadlyB. Lions Shot Dead after Attacking a ManC. The Tragic Story of a Magical LionessD. Conservation Status of the African Lion【答案】8. B 9. B 10. C 11. A【解析】【分析】本文是一篇說明文。【8題詳解】細節(jié)理解題。）”可知，Magigi被轉(zhuǎn)移到保護區(qū)的原因是為了防止她殺牛?！?題詳解】推理判斷題。這些通常是農(nóng)場，在保護區(qū)的邊緣擴展。如果沒有一個適當(dāng)?shù)姆椒▉碜柚惯@些攻擊，晚餐往往變成致命的力量，射擊或中毒的獅子，這導(dǎo)致了獅子數(shù)量的減少。故選B項。通過文章最后一段“Many preventative measures are being tested in various African countries, including hiring lion guardians to monitor these big cats, creating lionproof fences, sending out lion text alerts, and teaching herders to keep livestock away from highrisk areas.（許多預(yù)防措施正在非洲各國進行測試，包括雇傭獅子護衛(wèi)者為了監(jiān)視這些大型貓科動物，建立防獅子圍欄，發(fā)出獅子文字警報，并教導(dǎo)牧民讓牲畜遠離高風(fēng)險地區(qū)。故選C項。通讀全文，結(jié)合文章首段“But the new research shows that after lions are moved, most continue to kill livestock and endanger villagers39。）”可推知，本文主要介紹了獅子即使遷移到一個新環(huán)境，也多半會繼續(xù)捕殺牲畜，危及村民。故選A項。s invited. You don39。介紹了Felipe Perez Santiago和Tarter女士設(shè)計了“地球計劃”——號召世界各地的人們上傳歌曲的片段，將這些歌曲融合成人類的集體合唱，代表地球上物種的聲音被發(fā)送到太空。根據(jù)首段最后一句“Thus, for the first time, SETI is cocking its ear towards Earth to look for a signal that can be sent into space to represent the species.”（ SETI首次向地球豎起耳朵，尋找可以送入太空的代表物種的信號。故選A項。根據(jù)第二段第二句“Since songs, like the human voices, are mon to all languages and nations, he and Ms. Tarter have designed the “Earthling Project”a call to people everywhere to upload extracts of song that he plans to melt into a collective human chorus.”（ 因為歌曲，就像人類的聲音，對所有語言和國家來說都是共通的，他和塔特女士設(shè)計了“地球計劃”——號召世界各地的人們上傳歌曲的片段，他計劃將這些歌曲融合成人類的集體合唱。故選B項。根據(jù)第三段第二句“Distant beings can in