Choose the best answer according to the text you have read.1. The main idea of the text is ____________. A: A.dolphins can recognize themselves in a mirror . B: B.two scientists did a lot of experiments to test the intelligence of dolphins . C: C.dolphins can help a lot in the research of brain development . D: D.dolphins are one of the smartest animals in the world.
Choose the best answer according to the text you have read.1. The main idea of the text is ____________. A: A.dolphins can recognize themselves in a mirror . B: B.two scientists did a lot of experiments to test the intelligence of dolphins . C: C.dolphins can help a lot in the research of brain development . D: D.dolphins are one of the smartest animals in the world.
What can we learn from the first paragraph（） A: A dolphin is a special kind of fish. B: Dolphins can"t swim very quickly. C: Dolphins can live only in the sea. D: Dolphins produce their babies on land.
What can we learn from the first paragraph（） A: A dolphin is a special kind of fish. B: Dolphins can"t swim very quickly. C: Dolphins can live only in the sea. D: Dolphins produce their babies on land.
In the zoo if a child （ ） into the water and can’t swim, the dolphins may come up （ ）him.
In the zoo if a child （ ） into the water and can’t swim, the dolphins may come up （ ）him.
The astronomer was not interested in the way dolphins communicate with each other. A: Right B: Wrong C: Not mentioned
The astronomer was not interested in the way dolphins communicate with each other. A: Right B: Wrong C: Not mentioned
Which of the following activities will negatively influence animals？（ ） A: hunting B: wildlife observation C: swimming with dolphins D: scuba diving on reefs
Which of the following activities will negatively influence animals？（ ） A: hunting B: wildlife observation C: swimming with dolphins D: scuba diving on reefs
In the zoo if a child _____ into the water and can’t swim, the dolphins may come up ______ him. A: will fall; to help B: falls; to help C: will fall; help D: falls; helping
In the zoo if a child _____ into the water and can’t swim, the dolphins may come up ______ him. A: will fall; to help B: falls; to help C: will fall; help D: falls; helping
Questions 15-18 are based on the following dialogue: Why do dolphins use clicks A: To communicate with other dolphins. B: To recognize objects in the water. C: To learn human language. D: To express fear.
Questions 15-18 are based on the following dialogue: Why do dolphins use clicks A: To communicate with other dolphins. B: To recognize objects in the water. C: To learn human language. D: To express fear.
Dolphins once were hunted for money because______. A: they are rare and precious animals B: valuable oil can be obtained form their head C: they can produce oil for lubrication D: they are able to utter sounds worth study
Dolphins once were hunted for money because______. A: they are rare and precious animals B: valuable oil can be obtained form their head C: they can produce oil for lubrication D: they are able to utter sounds worth study
Which of the followings is NOT TRUE A: A dolphin can stay under the water for about six minutes. B: A dolphin often comes to the top of the water to take in air. C: Dolphins are not fish but mammals in the sea. D: A dolphin doesn't have a good hearing.
Which of the followings is NOT TRUE A: A dolphin can stay under the water for about six minutes. B: A dolphin often comes to the top of the water to take in air. C: Dolphins are not fish but mammals in the sea. D: A dolphin doesn't have a good hearing.
In all this great serenity of ocean it is seldom that we espyso much as another ship; the jolly dolphins and the scratchy little flying-fish have the vast circle all to themselves, 'the Flying Fish, who has a part with the birds, ' and doubtless are glad to see the last of the monster which bears us into and out of sight. A: see B: like C: hate D: carry
In all this great serenity of ocean it is seldom that we espyso much as another ship; the jolly dolphins and the scratchy little flying-fish have the vast circle all to themselves, 'the Flying Fish, who has a part with the birds, ' and doubtless are glad to see the last of the monster which bears us into and out of sight. A: see B: like C: hate D: carry