— Isn’t that Ann’s husband over there?
— No, it ________ be him — I’m sure he doesn’t wear glasses.
A.must not B.can’t C.won’t D.may not
阅读下面短文，根据其内容写一篇60词左右的内容概要。
If you're worried that too much “screen time ”could badly influence your child's intelligence， new research suggests you might be right. By analyzing the data gathered from over 4，500U. S. kids aged 8 to 11 between 2016 and 2017，Jeremy Walsh，a postdoctoral fellow with the CHEO Research Institute in Ottawa， found that too much “screen time” could be harming your child's intelligence.
Kids with the sharpest intellects spent less than two hours a day on their cellophanes， tablets and computers coupled with 9 to 11 hours of sleep and at least an hour of physical activity. Too much screen time could be affecting kids ability to focus， especially if they are switching between apps on a device or between different screens at the same time， Walsh suggested. “ One leading theory is that much time on screens is spent multitasking using multiple apps or devices at once，” he said. “This can interfere with a child's ability to focus and keep interest on a task. It can be damaging the building blocks for good cognition(认知).”
Sleep is important for brain development， since that's when the brain reorganizes itself and grows， Walsh added. Besides， exercise has been shown to increase blood flow to the brain and oxygenation of brain tissues， and increases the connectivity of networks in the brain. Too much screen time could lead to a“ cascade”(瀑布) effect where kids don't get enough sleep and then are less active during the day.“ You can see how this would have an impact on brain health，” Walsh said.
What should parents do? Walsh advised setting firm rules about the use of screens including how long children are using the screens， the kinds of apps they are using and how many screens they are using at once. Concerned parents also should preview games or apps before letting their child play， seek out more interactive(交互的)options that engage the child's mind， and use parental controls to block or filter content and limit screen time.
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假定你是李华，得知外教Mr. Hall寒假不回国，想邀请他到你家过春节。请给他写一封信，内容包括：
1.时间；2.一同过节的家人；3.节日活动。
注意:1.词数80左右；2.可以适当增加细节，以使行文连贯。
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根据首字母和中文提示，用必修五和选修六中所学单词的正确形式填空。
1.Many parents a______(安排) everything for their children and spare no effort to pave the way for their success.
2.The Internet can keep us i______(了解) of what is going on around us at any time.
3.In the activity not only have we______(交换) ideas， but also promoted friendship.
4.The reason why I admire him is that his positive attitude to life has a great e_______影响)on me.
5.He a ______(焦急地) searched for his name on the list.
阅读下面材料，在空白处填入适当的内容(不多于3个单词)或括号内单词的正确形式。
China is a big old country，1. has a history of more than five thousand years. We are proud of2.(it)culture and part of the culture even influences the world 3.(great)， for example， the thought of Confucius(孔子). As Chinese economy develops very fast and plays4.important role in the world， more and more 5.(foreign) learn mandarin(普通话) in Confucius institutions. The Chinese traditional culture can 6. (test) by the time It unites the whole nation 7.no matter what kind of disaster comes， we will fight together for the country's future. Today， many young people lose faith 8.traditional culture and they are crazy about the western culture They follow the western fashion， 9.( think) we are the old style. But some day， they10.(realize)it is wrong for them to ignore traditional culture.
The Sweetest Thing
When I was ten, I was crazy about candy. Whenever in our small-town ______ with my mom, I would run my fingers through my favorite candy on the shelf.
Once there, thinking about all things sweet, I noticed a man a few feet away pushing buttons on the ATM machine. Dressed in a suit, he seemed to be late for something, ______ waiting for his cash to appear. The machine made a noise, and he immediately ______ a pile of bills and headed out. Curiously, I walked over to the ATM, where I started pressing the buttons as if knowing the ______. Then I looked into the bottom of the machine. There I saw it: a beautiful, crisp $20 bill! ______ I wanted to believe my magic made the cash appear, I knew the man in the suit must have left it behind.
I held the money in my hand, staring at the number “20” and feeling ______ than I ever had. I thought about slipping the money into my pocket. No one would know, but it didn’t feel ______. I knew it didn’t belong to me. I had to find its owner and give it back! So I told my mom what had happened. “We’ll look for him.” she said kindly. We rushed out and found him stepping into his car in the parking lot! We ______ him and asked whether he had left money at the cash machine.
“Let me ______,” he said, pulling out his wallet and bills. “Twenty, forty, eighty…Oh! You’re right,” he said with surprise, “I’m ______ a $20 bill.”
“Here you go,” I said, smiling with pride, as if I was a(n) ______ who had solved a mystery. “Thank you so much,” he said, bending down and shaking my hand. My heart ______. Before saying goodbye, he asked my mom for my name and ______. “I want to send your daughter a thank-you card,” he said.
On my way home, my ______ was racing. Twenty dollars. What could I have done with it? I bet I could have bought a puppy or every single candy bar in town! But now ______ of that would happen. Yet I knew I had done the right thing.
A few weeks later, I got a box with a note. I ripped it open to find packages of candy.
“Dear Felice, Thank you very much for ______ my $20. You are a great girl, and I appreciate your ______. I hope you enjoy this candy. Best Wishes, Tom.” Tom included his business card. It turned out he was vice-president for the candy company. The candy tasted sweet, each ______ reminding me that what I had done mattered. Although my honesty wouldn’t always be ______ with candy, it would make a difference to someone. And that was the ______ part of all.
1.A.school B.church C.store D.bank
2.A.angrily B.excitedly C.hopefully D.anxiously
3.A.covered B.seized C.handed D.posted
4.A.machine B.assistant C.man D.password
5.A.Though B.Since C.Once D.Until
6.A.smarter B.stronger C.prettier D.richer
7.A.right B.good C.fair D.easy
8.A.caught B.approached C.guided D.searched
9.A.try B.think C.check D.guess
10.A.sparing B.seeking C.missing D.changing
11.A.engineer B.detective C.manager D.designer
12.A.hurt B.sank C.swelled D.jumped
13.A.address B.age C.habit D.birthday
14.A.car B.memory C.time D.mind
15.A.both B.none C.some D.either
16.A.returning B.remembering C.keeping D.lending
17.A.loyalty B.devotion C.honesty D.bravery
18.A.dollar B.bite C.product D.choice
19.A.marked B.replaced C.shared D.rewarded
20.A.sweetest B.hardest C.freshest D.heaviest
