（2 分）
A．So do I B．I do so C．So I do D．I so do 我的答案：A 得分：2分 28、
— Come on. Let’s try the Chinese food.
— ________ .
（2 分）
A．You are so kind to let me have a taste B．Yes, I will try C．Mm… it’s so delicious D．They are all good food 我的答案：C 得分：2分
29、
—Doctor, what’s the matter with me?.
—_______ .
（2 分）
A．You are terrible B．I’m afraid I can’t tell you C．Very well D．Nothing serious. You look fine 我的答案：D 得分：2分 30、
— Don’t you think that’s expensive?
—________ .
（2 分）
A．Not at all. That’s the best price in town B．Believe it or not. It’s good C．It’s impossible to cost so much D．It’s cheap enough
我的答案：A 得分：2分 复合题
Why don’t birds get lost on their long flights from one place to another? Scientists have puzzled over this question for many years. Now they’re beginning to fill in the blanks.
Not long ago, experiments showed that birds rely on the sun to guide them during daylight hours. But what about birds that fly by night? Tests with artificial stars have proved that certain night-flying birds are able to follow the stars in their long-distance flights.
A dove had spent its lifetime in a cage and had never flown under a natural sky. Yet it showed an inborn ability to use the stars for guidance. The bird’s cage was placed under an artificial star-filled sky. The bird tried to fly in the same direction as that taken by his outdoor cousins. Any change in the position of the artificial stars caused a change in the direction of his flight.
But the stars are apparently their principal means of navigation. When the stars are hidden by clouds, they apparently find their way by such landmarks as mountain ranges, coast lines, and river courses. But when it’s too dark to see these, the doves circle helplessly, unable to find their way.
31、
The reasons why birds don’t lost on long flights _______ .
（2 分）
A．have been known to scientists for years B．have only recently been discovered C．are known by everyone D．will probably remain a mystery 我的答案：B 得分：2分 32、
During daylight hours, birds _______ .
（2 分）
A．fly aimlessly B．rely on landmarks C．use sun for guidance D．are more likely to get lost 我的答案：C 得分：2分 33、
By “his outdoor cousins” the author means _______ .
（2 分）
A．other experimenters B．the other doves of the same brood C．doves under the natural sky D．other birds in general 我的答案：C 得分：2分 34、
The experiment with the dove indicated that ________ .
（2 分）
A．birds have to be taught to navigate B．a bird that has been caged will not fly long distance C．some birds cannot fly at night D．some birds seem to follow the stars when they fly at night 我的答案：D 得分：2分
2020秋华南师范《大学英语3》客观题作业及答案
