Choose the best answer(根据短文内容.选择最恰当的答案)As we set off on the boat to the Great Barrier Reef in Australia, the diving lesson began with instructions on how to breathe underwater. The breathing device c 题目和参考答案——青夏教育精英家教网—

Choose the best answer（根据短文内容，选择最恰当的答案）

As we set off on the boat to the Great Barrier Reef in Australia, the diving lesson began with instructions on how to breathe underwater. The breathing device connects to the oxygen tanks on our backs.. We put the other end in our mouths so that we can breathe through it. The instructor told us to breathe slowly and regularly through our mouths. We mustn't breathe too deeply or we'll use up all our air very quickly. After some practice in a swimming pool, ? was comfortable with it. Out here on the boat we put on the rubber diving suits. and slipped the webbed flippers onto our feet. Then, it was time to jump in!

I flipped over the side of the boat, and I slowly let the air out of my diving jacket. I sank beneath the surface and entered a whole new world. I had entered a colourful wonderland more beautiful than I could ever have imagined. There was peace and silence. The only sound I could hear was the bubbles from my device as I breathed underwater. We saw lots of colourful fish, coral （珊瑚） and an octopus （章鱼）. A dolphin circled up and down and all around us.

As we went deeper, my ears hurt from the water pressure. Following the diving instructor’s advice, I swallowed to reduce the pressure. After a while, the instructor signaled us to go up. We had been underwater for 40 minutes! It felt like only five.

I wish I could go back to the feeling of being swallowed by the ocean. I wanted to live underwater forever. I felt like "a fish out of water".

1.The author is taking a ________ class.

A.swimming B.fishing C.diving D.breathing

2.How do you breathe through the breathing device?

A.You breathe through the mouth while diving. B.You breathe through the nose while diving.

C.You can breathe with it underwater and on land. D.You can breathe with it only in a swimming pool.

3.What creates the sound the author hears?

A.The fish swimming by. B.The motor of the boat above them.

C.The bubbles made by using the breathing device. D.The pressure of the water.

4.How did the author know when to go back to the surface?

A.The author ran out of air.

B.Her watch made a sound and told her to go up.

C.The fish swam away, and there was nothing left to see.

D.The instructor signaled everyone to go up to the surface.

5.Which word best describes the feeling of the author as she was diving?

A.Excited. B.Lost. C.Confused. D.Comfortable.

6.Why did the author say the 40 minutes underwater felt like five?

A.She enjoyed the time So much that it seemed to go by quickly.

B.She had a hard time breathing, so she was happy to get out quickly.

C.The time on her watch had stopped after five minutes.

D.Time passes more slowly underwater.

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