单选题The poetry of Ezra Pound is sometimes difficult to understand because it contains so many ______ references. [A] obscure [B] acute [C] notable [D] objective

单选题Man: Is that optional course as hard as everybody says? Woman: Exactly, and even worse, believe it or not. Question: What does the woman mean?

单选题Lasswell's and Edelman's studies are important in that they ______.

单选题What ______ about that article in the newspaper was that its writer showed an attitude cool enough, professional enough and, therefore, cruel enough when facing that disaster-stricken family.

单选题How can you ______ and watch the country go to ruin?

单选题China's economic reform is aimed at separating enterprises from the government. It has been implemented for almost 20 years, but breakthroughs ______.

单选题—My father will be here tomorrow. —Oh, I thought that he______today.

单选题 近年来，中国政府进一步加大体育馆建设投资，以更好地满足人们快速增长的健身需求。除了新建体育馆外，许多城市还采取了改造旧工厂和商业建筑等措施，来增加当地体育馆的数量。在政府资金的支持下，越来越多的体育馆向公众免费开放，或者只收取少量费用。许多体育馆通过应用现代信息技术大大提高了服务质量。人们可以方便地在线预订场地和付费。可以预见，随着运动设施的不断改善，愈来愈多的人将会去体育馆健身。

单选题You ______ tired tomorrow if you don't go to bed soon.

单选题They showed us around the factory ______ is equipped with modern machines.

单选题 At the heart of the debate over illegal immigration lies one key question: are immigrants good or bad for the economy? The American public overwhelmingly thinks they're bad. Yet the consensus among most economists is that immigration, both legal and illegal, provides a small net boost to the economy. Immigrants provide cheap labor, lower the prices of everything from farm produce to new homes, and leave consumers with a little more money in their pockets. So why is there such a discrepancy between the perception of immigrants' impact on the economy and the reality? There are a number of familiar theories. Some argue that people are anxious and feel threatened by an inflow of new workers. Others highlight the strain that undocumented immigrants place on public services, like schools, hospitals, and jails. Still others emphasize the role of race, arguing that foreigners add to the nation's fears and insecurities. There's some truth to all of these explanations, but they aren't quite sufficient. To get a better understanding of what's going on, consider the way immigration's impact is felt. Though its overall effect may be positive, its costs and benefits are distributed unevenly. David Card, an economist at the UC Berkeley, notes that the ones who profit most directly from immigrants' low-cost labor are businesses and employers—meatpacking plants in Nebraska, for instance, or agricultural businesses in California. Granted, these producers' savings probably translate into lower prices at the grocery store, but how many consumers make that mental connection at the checkout counter? As for the drawbacks of illegal immigration, these, too, are concentrated. Native low-skilled workers suffer most from the competition of foreign labor. According to a study by George Borjas, a Harvard economist, immigration reduced the wages of American high-school dropouts by 9% between 1980—2000. Among high-skilled, better-educated employees, however, opposition was strongest in states with both high numbers of immigrants and relatively generous social services. What worried them most, in other words, was the fiscal(财政的) burden of immigration. That conclusion was reinforced by another finding: that their opposition appeared to soften when that fiscal burden decreased, as occurred with welfare reform in the 1990s, which curbed immigrants' access to certain benefits. The irony is that for all the overexcited debate, the net effect of immigration is minimal. Even for those most acutely affected—say, low-skilled workers, or California residents—the impact isn't all that dramatic. 'The unpleasant voices have tended to dominate our perceptions,' says Daniel Tichenor, a political science professor at the University of Oregon. 'But when all those factors are put together and the economists calculate the numbers, it ends up being a net positive, but a small one.' Too bad most people don't realize it.

单选题 请选出下面划线部分读音不同的选项

单选题You ______ yesterday if you were really serious about the job.

单选题The doctor told the pupils that an ______ disease was one that could be passed from one person to another.

单选题He felt that the office routine was too ______ for a man of his dreams.

单选题It is estimated that, currently, about 50000 species become ______ every year.

单选题Take your vaccination certificate with you ______ they ask for it at the airport. A. unless B. in case C. when D. because of

单选题Some polls show that roughly two-thirds of the general public believe that elderly Americans are ______ by social isolation and loneliness.

单选题This passage is mainly about the introduction of ______.