题目内容
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A．If the family tree is fairly limited.
B．If the family tie is strong enough.
C．If the name is commonly used.
D．If nobody in the family complains.
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A、lucky
B、loud
C、naive
D、smart
B．The man and the woman are husband and wife.
C．The woman's experience during her last trip was not very pleasant.
D．The woman cannot decide whether to go to New Orleans or stay at home.
A．a theory that physical matter is the only reality
B．a doctrine that the only values lie in material well-being
C．a doctrine that economic or social change is materially caused
D．a focus on material rather than intellectual or spiritual things
(16)
A．Visit a different store for a silk or cotton shirt.
B．Get a discount on the shirt she is going to buy.
C．Look for a shirt of a more suitable color and size.
D．Replace the shirt with one of some other material.
Scientists agree that key player in this scenario is the West Antarctic ice sheet, a Brazil-size mass of frozen water that is as much as 7, 000 feet thick. Unlike floating ice shelves which have little impact on sea level when they break up, the ice sheet is anchored to bedrock well blow the sea surface. Surrounded by open ocean, it is also vulnerable, but Antarctic experts disagree strongly on just how unstable it is.
Now, new evidence reveals that all or most of the west Antarctic ice sheet collapsed at least once during the past 1. 3 million years, a period when global temperatures probably were not significantly higher than they are today. And the ice sheet was assumed to have been stable. In geological time, a million years is recent history. The proof, which was published last week in Science, comes from a team of scientists from Uppsala University in Sweden and the California Institute of Technology who drilled deep holes near the edge of the ice sheet. Within samples collected from the solid substance lying beneath the ice,they found fossils of microscopic marine plants which suggest that the region was once an open ocean, not solid ice. As Herman Englehart, a co-author from the California Institute of Technology says, "the West Antarctic ice sheet disappeared once, and can disappear again. "
26. Q: What is one of the most frightening threats of global warming according to the passage？
27. Q:What did scientists disagree on？
28. Q:What does the latest information reveal about the West Antarctic ice sheet？
29. Q:What does the scientists' latest finding suggest？
(32)
A．The whole Antarctic region will be submerged.
B．Some polar animals will soon become extinct.
C．Many coastal cities will be covered with water.
D．The earth will experience extreme weathers.
B．It sits firmly on solid rock at the bottom of the ocean.
C．It melted at temperatures a bit higher than those of today.
D．It will have little impact on sea level when it breaks up.
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