单选题______ a larger percentage of its gross national product on defending its coasts from rising seas than ______.

单选题Mr. Robinson knew that the most trivial chore could prove to be a ______if approached with enthusiasm.

单选题Initially his book did not receive much attention, but two weeks after the critic's review appeared in the newspapers, it climbed to the best sellers' list.

单选题When Jack heard the news, he couldn' t help_______.

单选题More charity goods must be sent immediately to those African countries ______ by poverty and hunger.

单选题I saw a traffic ( ) this morning.

单选题Her government, by its clear ______ with many previous policies, has placed a double strain on the traditional relationship.

单选题If we had been informed in time, we ______ them for you． A．would have reserved B．would reserve C．will reserve D．had reserved

单选题Paul just had ______.

单选题 话题：要勇于面对挑战We should face challenges bravely Directions: For this part, you are allowed 30 minutes to write an essay on facing challenges by referring to the saying 'You cannot change what you refuse to confront.' You can give examples to illustrate your point and then explain how you will react to challenges in your life. You should write at least 150 words but no more than 200 words.

单选题One reason why the woman of today may take a job is that she ______.

单选题We shall probably never be able to______the exact nature of these sub-atomic particles.

单选题What kind of______. does the book have? Is it hard back or soft back?

单选题 Cleaning up our air may have made us healthier. A new analysis shows that the number of storms falls when pollution rises, and increases when pollution drops. Further tightening of present pollution controls 'could reduce aerosols (气溶胶；悬浮颗粒) so quickly that we have record numbers of tropical storms for the next decade or two', says Nick Dunstone of the Met Office Hadley Centre in Exeter, UK. Earlier studies found no connection between storm numbers and aerosols' ability to cool the surface by scattering light in the open air. But aerosols also increase the brightness and lifetime of low-level marine clouds. When Nick Dunstone of the Met Office Hadley Centre in Exeter, UK, added this effect into his climate models, the simulated clouds cooled the surface more than expected. Historically, this cooling effect has been strongest in the north Atlantic. Cooling the north Atlantic reduces the energy available to power hurricanes. It also shifts rising and falling air currents further south, increasing wind shear in the Atlantic hurricane nursery. This extra wind shear tears nascent storms apart before they can gain strength. In this way, Dunstone says, changes in aerosol emissions appear to drive cyclical variations in north Atlantic tropical storms. These variations have long been attributed to natural variations in ocean circulation. Throughout the 20th century, aerosol emissions increased with industrialization and decreased in economic slumps. Tropical storms were frequent from the 1930s through to the 1950s, but rarer in the better economic times of the 1960s to mid-1990s. Then pollution controls reduced aerosol levels, and Atlantic hurricanes came roaring back, with 19 in 1995, a record 28 in 2005, and 19 in each of the past three years. Dunstone expects the increase to continue for another two decades. After that, global warming may begin to reduce the number of tropical storms, by warming the air and thus reducing the temperature difference between the sea surface and the atmosphere. It is not clear whether aerosols affect the intensity of storms.

单选题We don't have any shoes in your______.

单选题How long did it take the patient to resume her normal activity after the operation? ______.

单选题She said it was important to______things correctly and in a businesslike manner.