题目内容
Baron seems to suggest that writing through email ______.
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听力原文： What is cloning？ Cloning is the creation of cells or whole animals using DNA from a single "parent", bypassing the normal reproductive process. The clone has the same DNA as the parent.
The most common process takes DNA from one cell and puts it in a hollowed-out egg. Chemicals and electricity are then used to encourage the new DNA to fuse with the egg and develop into an embryo. This technique is called nuclear transfer.
The first cloned animal in human history was a sheep called Dolly. It was very important because it was the first mammal to be cloned using DNA taken from an adult cell. Previously, animals had only been cloned using embryo cells, which already have the potential to become complete embryos in their own right. The big breakthrough with Dolly was that a clone was made from an ordinary, adult cell.
When it comes to the question of whether cloned animals are normal and healthy, the answer is YES. Dolly is, but scientists do not yet know whether this is the exception or the rule. Some early evidence suggests that clones may have health problems and that they may age prematurely.
With the birth of Dolly, many people are worried that a human clone may be born soon. It's possible in theory. But the technology of reproductive cloning is still in its very early stages and there is much that scientists do not understand. What's more, human cloning is already banned by law in the United Kingdom. The former President of the United States, Bill Clinton, proposed banning research into producing human clones in the U. S. for five years. Some measures have also been taken to establish international agreements banning live human clones.
What has cloning bypassed？
PART C
Directions: You will hear three dialogues or monologues. Before listening to each one, you will have 5 seconds to read each of the questions which accompany it. While listening, answer each question by choosing A, B, C or D. After listening, you will have 10 seconds to check your answer to each question. You will hear each piece ONLY ONCE.
听力原文： Belfast is the capital of Northern Ireland and the major city in commerce and industry. And it is one of the most important ship-building and repairing centers of 'the United Kingdom, and has long been known for its linen textiles. Its manufactures include aircraft, guided weapons, and tobacco and food products. A large petroleum refinery here is supplied by imported petroleum, which is received fit the city's deep-water port. Other imports include grain, coal, chemicals, and iron and steel. Among the chief exports are petroleum products, soap, food stuffs and textiles.
In Belfast, there are the notable Ulster Museum and the Protestant Cathedral of St. Anne. As an educational center, the city is home to Queen's University of Belfast and Belfast College of Technology.
Although there's evidence that people once settled in this place during the Stone and Bronze Age, the founding of Belfast dates from 1177 when a Norman castle was erected. Edward Bruce destroyed the settlement in 1315, the year he became the Irish King. The city was taken by the English in the 16th century. In the late 17th century, French refugees arrived here and developed the linen industry. The harbor was improved in the late 18th century. And ship-building was begun on a large scale. The city was made the capital of Northern Ireland in 1920. During World War Ⅱ , Belfast was heavily damaged by German bombing raids. Beginning in 1969, the city was the scene of religious disorder involving civil rights agitation and increased violence.
Belfast has long been famous for its ______.
Compared with Baron and Lancashire, Cohen is ______ regarding email writing.
Which of the following is NOT one of the changes of privacy loss？
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