单选题Every year gray whales migrate from the Bering Sea in Alaska to the Baja Peninsula in Mexico. Eleven gray whales have died in the San Francisco Bay in the last three weeks. No one knows why the whales are dying. Last year 270 whales died along the whales' migration route. Many people think starvation is the cause. This year the dead whales seem to have more blubber (fat) on them. Twenty years ago, the gray whale was listed as an endangered species. Some scientists think that the larger number of whales makes it hard to find enough food. More whales create more pressure on the food supply, a supply that some scientists say may have dwindled as a result of the warm waters of El Nino. Most of the whales have been dead for many days before they are found and studied. This makes it hard to find the reason for death. 65 whales have been seen in the San Francisco Bay Area this year compared to 17 last year. The whales could be dying from many diseases, but it may be over-population.

单选题My father was asked to ______ the New York office.

单选题I was (on the verge) of (incurring) Mr. Rochester's wrath by not listening to his prohibitions, (while) a my once more shone almost (imperceptibly) on the hallway wall and I heard his muffled step on the carpet.

单选题It is nice to go for a walk ______ a summer evening.

单选题Grandpa: Robbie, we' 11 go fishing soon, and we' 11 take your Dad with us.Grandson: I' m ready, Grandpa______

单选题I let my children make their own decisions now they are older; I wouldn't ______ to interfere.

单选题The situation today is obviously quite different from ______ it was only 50 years ago.

单选题How did the President treat the boy who had lost his father?

单选题Which of the following sentences is not true according to the passage?

单选题Our world is becoming much smaller ______.

单选题In the last few minutes the conversation has become seemingly ______ as if the discussion were of some minor domestic matter and not survival itself.

单选题In order to work here the foreigner needs a work permit, which must be (21) for by his prospective employer. The problem here is that the Department of Employment has the right to (22) or refuse these permits, and there is little that can be (23) about it, it would be extremely unwise (24) a foreign visitor to work without a permit, since anyone doing so is (25) to immediate deportation. There are some (26) to this rule, most notably people from the Common Market countries, who are (27) to work without permits and who are often given (28) residence permits of up to five years. Some (29) people, such as doctors, foreign journalists, authors and others, can work without (30) The problem with the Act is not just that some of its rules are (31) but (32) it is administered, and the people who administer it. An immigration official has the power to stop a visitor (33) these shores coming into the country. If this happens the visitor has the (34) to appeal to the Immigration Appeal Tribunal. (35) the appeals are being considered, the visitor has no choice but to wait sometimes for quite a long time.

单选题The house ______ will be our new laboratory.

单选题It was ______ the chief engineer came ______ we began the experiment.

单选题The city is______of three sections, which are separated by rivers.

单选题From climate change to the ongoing pandemic (大流行病) and beyond, the issues facing today’s world are increasingly complex and dynamic. Yet solving problems like these requires new approaches that extend beyond traditional ways of thinking. A study led by Yale Professor of Psychology, Paul O’Keefe, found that having a growth mindset (思维倾向) of interest may spark this type of innovation. Professor O’Keefe established in earlier studies that people hold different beliefs about the nature of interest. Those with a growth mindset of interest tend to believe that interests can be developed and cultivated, while those with a fixed mindset of interest tend to believe that interests are inherent (与生俱有的) and simply need to be ’found. ’ Building on these findings, the latest research examined how a growth mindset of interest can boost integrative thinking across the traditional disciplinary boundaries of arts and sciences. For example, in one task, research participants were instructed to create new college majors by combining two or more existing academic Arts or Science programs at their university. After coding and analyzing the ideas they generated, the team found that people with a growth mindset of interest were more likely to bridge programs across the arts and sciences to create new majors like computational economics rather than creating majors that drew from only one of those areas, like computational chemistry. As Professor O’Keefe pointed out, "This research provides a useful direction for organizations whose products and services call for integrated and creative solutions. Take smartphones for example. You need not only computer science and engineering knowledge, but also an understanding of psychology and visual design to create a better product. Employees with a growth mindset may be more likely to devise innovative ideas that bridge multiple areas of knowledge to achieve better solutions." The benefits of a growth mindset of interest may also extend to those seeking employment. This is a pressing issue because many people are becoming unemployed due to the COVID-19 pandemic. Having a growth mindset of interest can help job seekers expand their interests and become more adaptable to different fields, and take the initiative to learn new skills.

单选题The performances in relation to Whorf's claim of the Dani and the Piraha are______.

单选题According to Monsanto, the invention of Terminator will NOT ______.

单选题Inflation is a period of rapid rises in prices. When your money buys fewer goods so that you get (56) for the same amount of money as before, inflation is the problem. Sometimes people describe inflation as a time when "a dollar is not (57) a dollar anymore". Inflation is a problem for all consumers, especially people who live on a fixed income. Retired people, for instance, cannot (58) on an increase in income as prices rise. They face serious problems in stretching their incomes to (59) their needs in time of inflation. Many retired people must cut their spending to (60) rising prices. In many cases they must stop (61) some necessary items, such as food and clothing. Even (62) working people whose incomes are going up, inflation can also be a problem. The (63) of living goes up, and they must have even more money to maintain their standard of living. When incomes do not keep (64) with rising prices, living standard goes down. People may be earning the same amount of money, but they are not living (65) because they are not able to buy as many goods and services. Government units gather information about prices in our economy and publish it as price indexes (66) the rate of price change can be determined. A price index measures changes in prices using the price for a (67) year as the base. The base price is set (68) 100, and the other prices are reported as a (69) of the base price. A price index makes (70) possible to compare current price with that in previous years.

单选题Mike has already put forward his suggestion ______ a production plan should be completed next week.