单选题. Questions 1 and 2 are based on the news report you have just heard.1.
单选题. Bilingual (双语的) education in schools has long been a political hot potato—it was banned in California by a 1998 ballot measure, which the state Senate is now asking voters to repeal. But politics aside, there's an increasing amount of scientific support for the benefits of knowing at least two languages. Now, a new study published by the Annals of Neurology finds that you don't even need to learn that second (or third, or fourth) tongue at a very young age: Picking up a new language even a little later in life can have serious cognitive (认知的) benefits for the aging brain. Many recent studies have pointed out that bilingualism seems to be good exercise for the brain and later in life might even help delay the onset of dementia. But what if it's a self-selecting crowd? What if the people who learned two languages are just smarter to begin with? To help rule that factor out, researchers at the University of Edinburgh in Scotland studied 853 people who first took an intelligence test in 1947 when they were about 11 years old as part of a group called the Lothian Birth Cohort 1936, and retested them again around 2008 to 2010, when they were in their early 70s. A total of 262 of the seventy-year-old reported having learned at least one language other than English enough to communicate in it. Of those, 195 said they learned it before age 18; 65 said they learned it thereafter. The researchers gave the participants a battery of cognitive tests, including tests of their verbal reasoning, their vocabulary and reading abilities, their verbal fluency and their ability to process information quickly. They found that bilingual speakers performed much better than expected from their baseline cognitive ability, particularly in reading and in general intelligence. And those who knew three or more languages performed even better. Learning a language seemed to make as much difference in people's later-in-life cognitive decline as a gene that's been tied to risk of Alzheimer's disease and smoking habits. These participants mostly learned their second languages after age 11. The results actually make a very compelling point—you don't have to be a fluent speaker of a language to get the benefits, and you can start later in life, too.1. The phrase "hot potato" in Para. 1 is closest in meaning to ______.
单选题. Questions 22 to 25 are based on the passage you have just heard.7.
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单选题The French government is to ban students from using mobile phones in the countrys primary，junior and middle schools.Children will be allowed to bring their phones to school，but not allowed to get
单选题. Questions 5 to 7 will be based on the following news item.5.
单选题Mounting evidence shows that behavioral-activation BA therapy is just as effective as cognitive-behavioral therapy CBT in treating depression.Unlike CBT，BA is an outside-in 26_____ in which therapis
单选题Where to Get Healthier in 2018A From hotels and cruises to airports，airlines，safaris 游猎 and group tours，wellness promises to be everywhere in the world of travel.Five years ago wellness on the road me
单选题. Questions 1 and 2 are based on the news report you have just heard.1.
单选题《复合题被拆开情况》 Health workers who are HIV positive are banned from performing most surgery or dental treatment in case they cut themselves with their instruments and infect patients with their blood. They
单选题. Questions 5 to 7 are based on the news report you have just heard.5.
单选题 When deeply absorbed in work
单选题. Questions 19 to 21 are based on the passage you have just heard.4.