新视野英语网上作业.docVIP

U8 1. Word last week that a scientist named Ian Wilmut had succeeded in cloning an adult mammal — an achievement long thought impossible — caught the imagination of everyone. 2. In the wake of Wilmuts announcement, governments hurried to draft guidelines for the unknown, a future filled with incredible possibilities. 3. Like the Theory of Relativity, the splitting of the atom, and the first space flight, Dollys appearance has generated a long list of difficult puzzles for scientists, politicians, and philosophers. 4. The human cloning situations that experts consider most frequently fall into two broad categories: 1) parents who want to clone a child, either to provide transplants for a dying child or to replace that child, and 2) adults who for a variety of reasons might want to clone themselves. 5. The cloning method used by Wilmuts lab requires combining an egg cell with the nucleus of a cell containing the DNA of the person to be cloned. 6. Identical genes dont produce identical people, as anyone who knows a set of identical twins can tell you. 7. The gravest concern isnt really cloning itself, but genetic engineering — the deliberate altering of genes to create human beings according to certain requirements. 8. One expert believes the situation could be comparable to what occurred in the 16th century, when Europeans puzzled over how to classify the unfamiliar inhabitants of the Americas, and endlessly debated whether or not they were humans. XVII. Fill in the blanks with the words given below. Change the form where necessary. ? consent resume gross resign preface panic constitute queue reflection probable voluntary applicable 1. Two members from the board in protest. 2. He is charged with taking a car without the owners . 3. She her career after an interval of six years. 4. The mere thought of flying fills me with . 5. Each chapter (章) is by a quotation from Shakespeare. 6. His action was interpreted (解释) as a threat