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大学英语六级历年真题及答案——2009年6月

[01-26 14:36:32] 来源：http://www.77xue.com 英语四六级考试试题 阅读：8772次

概要：31．In what way is Dolly different from earlier clones？ A）It is cloned from human embryo． B）It is cloned from a human cell． C）It is cloned from an adult cell． D）It is cloned from an adult embryo． 32．What is the prospect，according to most scientists，of making clones from adult human tissues？ A）Such clones will be exactly like the one from whom it was made． B）It would be possible within the decade． C）There still exist some technical problems． D）It i

大学英语六级历年真题及答案——2009年6月,标签：四六级考试辅导,英语四六级历年真题,http://www.77xue.com
31．In what way is Dolly different from earlier clones？
A）It is cloned from human embryo．
B）It is cloned from a human cell．
C）It is cloned from an adult cell．
D）It is cloned from an adult embryo．
32．What is the prospect，according to most scientists，of making clones from adult human tissues？
A）Such clones will be exactly like the one from whom it was made．
B）It would be possible within the decade．
C）There still exist some technical problems．
D）It is impossible to make such clones in one to ten years from now．
33．Why did Clinton order a group of experts to make proposals for government action？
A）He wants to quicken the pace of cloning research．
B）The success of cloning involves serious moral evaluation problems．
C）He wants to ban the human cloning research．
D）He is worried about the funding of the further research．
34．"Food for thought"in the last paragraph means ________．
A）worry for food
B）increased food to be expected
C）something worthy of consideration
D）reasons for deep understanding
35．The best title for the selection can be ________．
A）BiotechnologicalSuccess And Its Possible Consequences
B）Dolly Is Only The Beginning
C）The Definition Of Cloning
D）Cloning Humans From Adults'Tissues
Questions 36to 40are based on the following passage：
Failure is probably the most fatiguing experience a person ever has．There is nothing more exhausting than not succeeding，being blocked，not moving ahead．It is an evil circle．Failure breeds fatigue，and fatigue makes it harder to get to work，which adds to the fatigue．
We experience this tiredness in two main ways，as start-up fatigue and performance fatigue．In the former case，we keep putting off a task that we are forced to take up．Either because it is too tedious or because it is too difficult，we avoid it．And the longer we postpone it，the more tired we feel．
Such start-up fatigue is very real，even not actually physical，not something in our muscles and bones．The remedy is obvious，though perhaps not easy to apply：willpower exercise．The moment I find myself turning away from a job， or putting it under a pile of things I have to do， I clear my desk of everything else and attach the objectionable item first．To prevent start-up fatigue，always treat the most difficult job first．
Performance fatigue is more difficult to handle．Here we are willing to get started，but we can't seem to do the job right．Its difficulties appear to be insurmountable and however hard we work，we fail again and again．The mounting experience of failure carries with it an ever-increasing burden of mental fatigue．In such a situation，I work as hard as I can，then let the unconscious take over．
36．Which of the following can be called an evil circle？
A）Success-zeal-success-zeal．
B）Failure-tiredness-failure-tiredness．
C）Failure-zeal-failure-tiredness．
D）Success-exhaustion-success-exhaustion．
37．According to the passage ，when keeping putting off a task，we can experience ________．

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