It's clear that fish cannot live ______ water.
A.with
B.without
C.under
第1题
It's clear that fish cannot live ______ water.
A.with
B.without
C.under
第2题
A dolphin(海豚) looks more like a fish than certain fishes do. It is an excellent swimmer. The dolphin seems to flash through the water. Like fish, dolphins are completely at home in the water. There they play, feed, sleep, and give birth to their young. Dolphins live in the sea and can live only in the sea.
Yet they are not fish. A dolphin must come to the surface to breathe. Fish can take oxygen from the water.
Dolphins cannot. Like us, they breathe with lungs and must take their oxygen from the air. And they are mammals (哺乳动物).
Most mammals are land animals. Dolphins are evolved (进化) from land animals. Long ago, dolphin ancestors (祖先) left the land for the sea. Among the animals was a kind that would become the dolphin we know. No one is sure exactly what kind of animal it was. But there is reason to think it was related to grass-eating animals like the cow. Modern dolphins are fish-eaters. Yet their stomachs are like those of animals that eat plants. The make-up of their blood is also like that of grass-eating animals.
The best title for this passage is______.
A.Dolphins
B.Fish
C.Mammals
D.Cows
第3题
A dolphin(海豚) looks more like a fish than certain fishes do. It is an excellent swimmer. The dolphin seems to flash through the water. Like fish, dolphins are completely at home in the water. There they play, feed, sleep, and give birth to their young. Dolphins live in the sea and can live only in the sea.
Yet they are not fish. A dolphin must come to the surface to breathe. Fish can take oxygen from the water.
Dolphins cannot. Like us, they breathe with lungs and must take their oxygen from the air. And they are mammals (哺乳动物).
Most mammals are land animals. Dolphins are evolved (进化) from land animals. Long ago, dolphin ancestors (祖先) left the land for the sea. Among the animals was a kind that would become the dolphin we know. No one is sure exactly what kind of animal it was. But there is reason to think it was related to grass-eating animals like the cow. Modern dolphins are fish-eaters. Yet their stomachs are like those of animals that eat plants. The make-up of their blood is also like that of grass-eating animals.
The best title for this passage is______.
A.Dolphins
B.Fish
C.Mammals
D.Cows
第4题
A.impression
B.education
C.explanation
D.communication
第8题
A. go to the newspaper stand and buy
B. send their own news stories to
C. agree to buy for a specific period of time
D. become faithful readers of
为了保护您的账号安全,请在“赏学吧”公众号进行验证,点击“官网服务”-“账号验证”后输入验证码“”完成验证,验证成功后方可继续查看答案!