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超星学习通无大学生英语能力（四级）作业答案

大学生英语能力（四级）

学校: 无

问题 1: 1. Cet-4-1.2-Exercise 02 In an analysis of data from eight large previously published studies, a Harvard-led group reported in the Journal of the American Medical Association that for every two hours per day spent channel surfing, the risk of developing Type 2 diabetes rose 20% over 8.5 years, the risk of heart disease increased 15% over a decade, and the odds of dying prematurely ______ 13% during a seven-year follow-up.

选项:

A. excessive

B. climbed

C. resulting

答案: climbed

问题 2: 2. Cet-4-1.2-Exercise 01 Those who stay on for an additional two years earn a master’s degree that ______ them as nurse practitioners or clinical specialists.

选项:

A. qualifies

B. allowing

C. maintain

答案: qualifies

问题 3: 1. Cet-4-1.6-Exercise 01 The U.S. Department of Education is making efforts to ensure that all students have equal access to a quality education. Today it is ______ the launch of the Excellent Educators for All Initiative. The initiative will help states and school districts support great educators for the students who need them most.

选项:

A. consumes

B. announcing

C. prevent

答案: announcing

问题 4: 1. Cet-4-1.8-Exercise 01 J) As I was considering all this, a press release from a respected research firm crossed my desk, announcing that the five-star rating system that Medicare developed in 2008 to help families compare nursing home quality also has little relationship to how satisfied its residents or their family members are. As a matter of fact, consumers expressed higher satisfaction with the one-star facilities, the lowest rated, than with the five-star ones. (More on this study and the star ratings will appear in a subsequent post.)

选项:

A. The author has come to agree that food shortages could ultimately lead to the collapse of world civilization.

B. The system Medicare developed to rate nursing home quality is of little help to finding a satisfactory place.

答案: The system Medicare developed to rate nursing home quality is of little help to finding a satisfactory place.

问题 5: 2. Cet-4-1.8-Exercise 02 C) As demand for food rises faster than supplies are growing, the resulting food-price inflation puts severe stress on the governments of many countries. Unable to buy grain or grow their own, hungry people take to the streets. Indeed, even before the steep climb in grain prices in 2008, the number of failing states was expanding. If the food situation continues to worsen, entire nations will break down at an ever increasing rate. In the 20th century the main threat to international security was superpower conflict; today it is failing states.

选项:

A. Increasing water shortages prove to be the biggest obstacle to boosting the world’s grain production.

B. Rather than superpower conflict, countries unable to cope with food shortages now constitute the main threat to world security.

答案: Rather than superpower conflict, countries unable to cope with food shortages now constitute the main threat to world security.

问题 6: 1. Cet-4-1.13-Exercise 01 G) Back in the 1950s most of us grew up in households where Mom cooked virtually every night. The intention to put a home-cooked meal on the table was pretty much universal. Most people couldn’t afford to do otherwise.

选项:

A. People in their fifties and early sixties bear the heaviest family burdens.

B. In the mid-20th century, most families ate dinner at home instead of eating out.

答案: In the mid-20th century, most families ate dinner at home instead of eating out.

问题 7: 2. Cet-4-1.13-Exercise 02 C) And yet we aren’t cooking. If you eat three meals a day and behave like most Americans, you probably get at least a third of your daily calories outside the home. Nearly two-thirds of us grab fast food once a week, and we get almost 25% of our daily calories from snacks. So we’re eating out or taking in, and we don’t sit down — or we do, but we hurry.

选项:

A. We get a fairly large portion of calories from fast food and snacks.

B. Ancient philosophers strongly advise that we do good.

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