Fish are animals that live in water. They live in almost any place【11】there is water. Some

It's clear that fish cannot live ______ water.

A．with

B．without

C．under

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

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

She gave us a detailed ________ of the local government’s new health -care proposal.

A.impression

B.education

C.explanation

D.communication

to as many as two or three different newspapers. But why do people read newspapers? Five hundred years ago, news of important happenings – battles lost and won, kings or rulers overthrown (推翻) or killed – took months and even years to travel from one country to another. The news passed by word of mouth and was never accurate. Today we can read in our newspapers of important events that occur in far away countries on the same day they happen. Apart from supplying news from all over the world, newspapers give us a lot of other useful information. There are weather reports, radio, television and film guides, book reviews, stories, and of course, advertisements. The bigger ones are put in by large companies to bring attention to their products. They pay the newspapers thousands of dollars for the advertising space, but it is worth the money for news of their products goes into almost every home in country. For those who produce newspapers, advertisements are also very important. Money earned from advertisements makes it possible for them to sell their newspapers at a low price and still make a profit. The phrase “subscribe to” in the first paragraph means “__________”.

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