单选题
A. Scientists are convinced that most animals cannot adapt to changes in climate. B. Certain animals are more adaptable as they can live in extreme conditions. C. Climate changes are responsible for the disappearance of some species. D. Some species can move to the new surroundings in case of climate changes.
【正确答案】
C
【答案解析】[听力原文] Scientists believe that some animals become extinct because of changes in climate. When the places they live become hotter or colder and they can't adapt to the new surroundings, they die.
单选题
A. I think sending the products by air is faster and safer. B. I need a quick response for my question about the products. C. To avoid any damage, we'd better send the products by sea. D. It is dangerous to send the products by sea as there are pirates.
【正确答案】
A
【答案解析】[听力原文] I've been looking into the question of having the products delivered by air. It's quick. The goods are less liable to damage than by sea. And there is less risk of holdups.
单选题
A. Generation gap is a new phenomenon of the ever-changing modern times. B. Differences exist among people even if they are of the same generation. C. Modern people can have different life expectancy, with only a few years apart. D. Modern people of different age groups may easily share a common viewpoint.
【正确答案】
B
【答案解析】[听力原文] Today, with the rapid social and economic changes of modern times, generation gap is found within the same generation, between people of different ge groups-sometimes, with only a few years apart.
单选题
A. We have made doubled efforts to increase the attendance. B. We need to find another 80 agents for our sales conference. C. This year's attendance will almost double that of the last. D. More than 280 people will come to this year's conference.
【正确答案】
C
【答案解析】[听力原文] Last year's annual sales conference was a great success. We have an attendance of almost 100 agents and influential customers. This time, we are counting on more than 180.
单选题
A. We have invested less than half a million in that project. B. We have invested almost three million in that project. C. We have invested five million or so in that project. D. We have invested about seven million in that project.
【正确答案】
D
【答案解析】[听力原文] Originally, we have planned to invest 3.5 million in that project, but just look at this figure, it almost doubled that amount!