人教版（2019）必修第三册 Unit 2 Morals and Virtues Discovering Useful Structures 课时优化训练

—In my opinion, you will need to seek ____ advice about your claim for compensation. 

Herman Melvile, the writer of the famous whale story Moby Dick, once wrote that humpback whales were "the most lighthearted of all the whales." Known to be intelligent animals and can be seen working together to hunt schools of small fish, humpbacks are a favorite of whale watchers everywhere. And, if you listen closely, you might even hear one singing.

Marine (海洋) biologist Jim Darling has studied the songs of humpback whales for more than 25 years. While recording whale songs on a boat near Hawaii, he invited author Douglas Chadwick to experience diving with a humpback. In the water, Chadwick heard the whale's songs in a way he never heard them before. "Suddenly, I no longer heard the whale's voice in my ears," he said. "I felt it inside my head and bones." When swimming with the whale, Chadwick could see that the whale was aware of him, but not alarmed by his presence. Up in the boat, Darling recorded the whale's song, which can be long and complex, sometimes lasting for 30 minutes or more. Actually, they are perhaps the longest songs sung by any animal.

Darling says that only male humpbacks sing, but for unknown reasons, it was previously thought that they sang to attract females, but scientists showed this was incorrect when they played recordings of whale songs in the ocean and the female whales did not respond. Another idea is that male humpbacks compete with each other using songs, just as other male animals on land do using their horns or sharp teeth.

Researchers have also found that humpback whale songs are different in different parts of the world, perhaps like whale national songs. They may also be like hit tunes on the radio, changing over time—from one year to the next, or even over a single breeding season when they produce young.

Another member of the research team, photographer Flip Nicklin, recalls a special moment he had while interacting with a humpback. While he was snorkeling(潜水) some distance from the huge animal, it approached him until it was just a few metres away. It then gently carried Nicklin towards its eye with a flipper(鳍肢), as if examine him. Obviously, the urge to understand a different species goes both ways.

Tinky, an eight-year-old girl, was studying in a primary school in a village. One day some naughty kids1 some greeting cards from a shop while its shopkeeper was busy in other2 . Tinky told her friends that stealing was a very bad thing. But her friends didn't3 the cards, instead they gave one to Tinky. She got excited with that magic greeting card and4 not to tell anybody about these stolen cards.

Next day Tinky was thinking to whom this beautiful card should be given5 she asked her sisters about it. They told her that she should give the card to her teacher and write a few6 for her.

On New Year's Day she gave the greeting card to her teacher, 7 "I love you and happy new year, dear teacher! You are so beautiful like a necklace full of diamonds!" Her teacher didn't expect it from her because children8 give greeting cards to their friends only.

So when receiving it, her teacher was9 but smiled. She started reading what was written in it. The teacher's heart was filled with10 and happiness. She hugged Tinky11 and Tinky was also full of joy. Then Tinky12 what if her teacher came to know that it was a stolen card. Finally she decided to tell the teacher the13 . Knowing what had happened, the teacher14 her for her honesty. She realized a greeting card was not costly but the15 it gave was precious.