Just as the letter says, please ___________, as it will be difficult for you to see what is behind you. A answer back B keep your back C watch your back D look back

在ProQuest Central China中可检索到众多学科的核心期刊,可在检索框右侧点击“选项”,进入高级检索,通过高级检索下拉菜择出版商,也可以直接录入字段进行检索,例如美国外交关系协会,该组织是美国政府最重要的智库,执行检索式Publisher:(Council on Foreign Relations)可命中哪个刊物A. Foreign AffairsB. Congressional Documents and PublicationsC. The American Political Science ReviewD. Perspectives on Politics

1.That is not true __ the people I am talking about. 2.The teacher told his students to make the most of the opportinities __hand. 3.He let the team __ by not trying hard enough. 4.Have you made __ your mind what courses you are going to take yet? 5.She learned the rules of the game step __ step. 6.Have you decided _____ where to go? 7.Will the fine weather keep ___? 8.___ some extent you`ve done a good job.

I thought the older people would be more offended than the young people, but it was the other way _ 9 _.

* 本题备选项需点击原文空格处获取，在列表上点选即可。 Many men and women have long bought into the idea that there are “male” and “female” brains, believing that explains just about every difference between the sexes. A new study 26_____ that belief, questioning whether brains really can be distinguished by gender. In the study, Tel Aviv University researchers 27_____ for sex differences throughout the entire human brain. And what did they find? Not much. Rather than offer evidence for 28_____ brains as “male” or “female”, research shows that brains fall into a wide range, with most people falling right in the middle. Daphna Joel, who led the study, said her research found that while there are some gender-based 29_____, many different types of brain can't always be distinguished by gender. While the “average” male and “average” female brains were 30_____ different, you couldn't tell it by looking at individual brain scans. Only a small 31_____ of people had “all-male” or “all-female” characteristics. Larry Cahill, an American neuroscientist (神经科学家), said the study is an important addition to a growing body of research questioning 32_____ beliefs about gender and brain function. But he cautioned against concluding from this study that all brains are the same, 33_____ of gender . “There’s a mountain of evidence 34_____ the importance of sex influences at all levels of brain function, ” he told The Seattle Times. If anything, he said, the study 35_____ that gender plays a very important role in the brain—“even when we are not clear exactly how”.

Questions 1 and 2 are based on the news report you have just heard.-|||-1.A)The richest people in the world. C)The major force for economic growth.-|||-B)The issue of income inequality. D)The highest paid industry in the world.-|||-2.A)Government should raise the salary of poor people.-|||-B)The rich should help poor people and the middle class.-|||-C)Policymakers should care more about the poor and the middle class.-|||-D)The poor should be provided with more job opportunities.-|||-Questions 3 and 4 are based on the news report you have just heard.-|||-3.A)To celebrate the 46th Earth Day. C)To attend a regular UN summit.-|||-B)To sign the historic climate deal D)To observe the UN's anniversary.-|||-4.A)Around 20 million. C)About 130 million.-|||-B)Around 44 million. D)Over 1 billion.-|||-Questions 5 to 7 are based on the news report you have just heard.-|||-5.A)It helps you enjoy a 3-D watching experience.-|||-B)It offers you better pictures and exciting stories.-|||-C)It enables you to experience incredible sound effects.-|||-D)It allows you to enter the scene to experience virtual realit-|||-6.A)Borrowing the special headsets from a VR film store to watch.-|||-B)Watching on a smart phone placed in a special cardboard box.-|||-C)Wearing the standard headsets that cover your eyes and ears to watch.-|||-D)Buying a pair of 3-D spectacles on Google and wear them to watch.-|||-7.A)It i is a serious crime film. C)It is the first full length VR film.-|||-B)It is the first and best VR film. D)It was shot in VR in Austin,Texas.

In the past，falling oil prices have given a boost to the world economy，but recent forecasts for global growth have been toned down（不容乐观），even as oil prices sink lower and lower．Does that mean the link between lower oil prices and growth has weakened？ Some experts say there are still good reasons to believe cheap oil should heat up the world economy．Consumers have more money in their pockets when they're paying less at the pump．They spend that money on other things，which stimulates the economy． The biggest gains go to countries that import most of their oil like China，Japan，and India，But doesn't the extra money in the pockets of those countries' consumers mean an equal loss in oil producing countries，cancelling out the gains？Not necessarily，says economic researcher Sara Johnson．"Many oil producers built up huge reserve funds when prices were high，so when prices fall they will draw on their reserves to support government spending，and subsidies（补贴） for their consumers．" But not al!oil producers have big reserves．In Venezuela，collapsing oil prices have sent its economy into free-fall． Economist Carl Weinberg believes the negative effects of plunging oil prices are overwhelming（压跨）the positive effects of cheaper oil．The implication（牵连）is a sharp decline in global trade，which has plunged（暴跌）partly because oil-producing nations can't afford to import as much as they used to． Sara Johnson acknowledges that the global economic benefit from a fall in oil prices today is likely lower than it was in the past．One reason is that more countries are big oil producers now，so the nations suffering from the price drop account for a larger share of the global economy． Consumers，in America at least，are acting cautiously with the savings they're getting at the gas pump，as the memory of the recent great recession（经济衰退）is still fresh in their mind．And a number of oil-producing countries are trimming their gasoline subsidies and raising taxes，so the net savings for global consumers is not as big as the oil price plunge might suggest．51．What does the author mainly discuss in the passage？ ____ A．The reasons behind the plunge of oil prices．B．Possible ways to stimulate the global economy．C．The effect of falling oil prices on consumer spending．D．The impact of cheap oil on global economic growth．52．Why do some experts believe cheap oil will stimulate the global economy？ ____ A．Manufacturers can produce consumer goods at a much lower cost．B．Consumers will spend their saving from cheap oil on other commodities．C．Lower oil prices have always given a big boost to the global economy．D．Oil prices may rise or fall but economic laws are not subject to change．53．What happens in many oil-exporting countries when oil prices go down？ ____ A．They use their money reserves to back up consumption．B．They suspend import of necessities from overseas．C．They reduce production drastically to boost oi1 prices．D．They try to stop their economy from going into free-fall．54．How does Carl Weinberg view the current oil price plunge？ ____ A．It is one that has seen no parallel in economic history．B．It still has a chance to give rise to a boom in the global economy．C．Its negative effects more than cancel out its positive effects．D．Its effects on the global economy go against existing economic laws．55．Why haven't falling oil prices stimulated the global economy as they did before？ ____ A．People are not spending all the money they save on gas．B．The global economy is likely to undergo another recession．C．Oil importers account for a larger portion of the global economy．D．People the world over are afraid of a further plunge in oil prices．

Tom played ____ the phone message，and was excited to learn that he had got the job.

(12-15)How had the man learned about the museum?()A. He visited it in person.B. He learned from a friend about it.C. He read of it in a magazine.D. He knew the sculptor.

As global markets continue to see-saw (摇摆不定), central banks across the world face a difficult balancing act of underline( )policy. (money)

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