Deep sleep is important. It helps us keep a good memory. But as we grow older, our sleep and memory become_________. How can older adults maintain(保持) deep sleep and strong memories?

A new study shows that one _______way is to listen to a kind of sound called "pink noise". It is the sound of falling rain, blowing wind and so on. It's called pink noise because it sits_________white noise and red noise on the audio spectrum(音频频谱) .

In the study, scientists _______thirteen adults above 60 years old to spend two nights in a sleep lab. Both nights, the participants (参与者) took a memory test and went to bed wearing headphones. The next morning, they were tested again after_________up.

One of the nights,_______was played through the participants' headphones. The other night, however, pink noise was played.

Here are the results. When participants slept with pink noise on, they had_______periods of deep sleep. They also performed three times better on the memory test the next morning than they_______after sleeping in_________.

However, because the study was very small, scientists still need to do more studies to see how ________pink noise is for people's sleep and memory. Anyway, it is amazing, isn't it?

1.A.clearer B.darker C.worse D.better

2.A.easy B.cheap C.crazy D.quiet

3.A.opposite B.without C.between D.beyond

4.A.forced B.invited C.reminded D.advised

5.A.looking B.staying C.making D.waking

6.A.anything B.nothing C.everything D.something

7.A.longer B.shorter C.higher D.lower

8.A.are B.did C.were D.do

9.A.fear B.trouble C.order D.silence

10.A.awful B.grateful C.helpful D.careful

Gossip means talking about other people's lives, which may be unkind or not true.

"We are going to do a gossip column (专栏) for the school newspaper," Emily said. "We take our notebooks whenever we go and write down everything happening around us."

"I already have _______ said, Austin, "I heard Lucy saying that she saw Julia's new haircut and it makes her look like a funny watermelon."

Jessica laughed. "I had _______ that, too."

This gossip-column idea was making _______ very uncomfortable. "Hold on," I said. "Don't you think kids will feel terrible to have that spread in the school?"

Emily shrugged (耸肩) . "Maybe, _______ people love gossip."

"Is that a good _______ to do it, though?" I said.

"Well, we are _______ reporting what we see and hear." said Jessica.

Austin cut in. "_______, I think Arizona was right. Gossip would make people feel bad."

Jessica said, "So does anyone have an idea for a different column?"

Emily suggested, "What if we do a friendly gossip column instead?"

"Good idea!" said Austin.

And that's exactly what we did then. We wrote down the good things or stories we saw. Here are a few good ones in our _______: Kate was seen picking up other people's rubbish and throwing it into the garbage bin. And Zoe was very _______ explaining a math problem to a classmate.

So, dear friends, "If you can't ________ anything nice, give up spreading the gossip." Even better, spread the word about the kind things people are doing.

(Adapted from Ask Arizona: The True-Friend Test)

1.A.something B.anything C.nothing D.everything

2.A.beaten B.noticed C.left D.needed

3.A.him B.her C.me D.them

4.A.but B.and C.so D.or

5.A.way B.reason C.design D.spirit

6.A.just B.still C.already D.nearly

7.A.In the end B.In fact C.Above all D.After all

8.A.magazine B.diary C.newspaper D.novel

9.A.surprisingly B.patiently C.happily D.angrily

10.A.hear B.say C.smell D.see

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