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.
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.
举一反三
- 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. A: will fall; to help B: falls; to help C: will fall; help D: falls; helping
- 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
- Read the text again and choose the best answer to each of the following questions. Learning common phrases that are used on the telephone can help students to ______.