题目内容
We have to hurry up because the plane will take ________ in an hour.
A. B. C.
After the recent Wechat and Alipay (支付宝) events, people believe that 2018 a milestone (里程碑) in China's personal information protection.
A.will be B.was C.is going to
The first 5G mobile phone ___________ by a Chinese company last year.
A.is produced B.produces C.was produced D.produced
__________ you go across the road, you must be careful.
A.When B.Since C.After D.Before
New rules and behavior standards (行为规范) for middle school students came out. Who are the most excellent students? Middle schools use a new way to decide that. The best students won't only have good grades. They will also be the kids who don't dye (染) their hair, smoke or drink. The following are some of the new rules.
Tell the truth. Have you ever copied others' work during an exam? Don't do it again. That's not what an honest student should do. If you played computer games for two hours in your room, don't tell your parents you were doing your homework.
Do more at school. Good students love animals and care about others. April is Bird-Loving Month in China. Is your school doing anything to celebrate it? You should join! That way, you can learn more about animals and learn how to protect them. And when your classmates are in trouble, remember to give them a hand. A friend in need is a friend indeed.
Use the Internet carefully. Try to keep away from web pages that are bad for you. Find good websites and use them for homework.
Be open to new ideas. Have you ever thought that people could live on the moon? Maybe you can discover a new planet someday. Don't look down on new ideas. You should welcome them because new ideas can make life better.
1.Middle schools use a new way to decide ________ the most excellent students are.
2.It's not honest to __________others' work during an exam.
3.Which sentence means"患难见真情"in the third paragraph?
_____________________
4.New ideas can make your life better, so ____________________.
5.How many rules are mentioned to be the most excellent students?
Has anyone ever told you that eating carrots will help you see in the dark?
This is just one of many incorrect beliefs you may have heard. Below, we have picked out scientific explanations for three mistakes that people make about their eyes. Let's take a look.
Can eating carrots improve your eyesight?
Carrots are rich in vitamin A, which helps the eyes to turn light into information for your brain. This allows people to see in darker places.
However, eating more carrots won't help you see better. A certain minimum amount will help, but a large number of carrots will not give you superhuman vision.
If your parents have bad eyesight, will you have bad eyesight, too?
Myopia(近视)can be passed from parents to children.
A study by the American Optometric Association found that if both parents are myopic, there's a 33 to 60 percent chance that their child will be. For children who have one parent with myopia, the chance is 23 to 40 percent. and it's down to 6 to 15 percent for kids with non-myopic parents.
So if your eyesight is bad, your children might still have good vision.
Do color blind people see the world in black and white?
Color blindness doesn't usually mean that people see the world like an old movie. They usually can't tell certain colors apart, especially green and red. Another commonly confused pair of colors is yellow and blue.
Our eyes have cone cells (视锥细胞) that sense different wavelengths (波长) of light. If these cells don't work properly, color blindness occurs.
There are different levels of color blindness. Some people are only color blind in low light.
However, in the most serious form of color blindness, everything is shades of gray.
1.According to the article, eating carrots ________.
A.stops the brain from seeing
B.doesn't help you see better at all
C.will help you see clearly in the dark
D.is good for your eyes to some degree
2.If both parents have myopia, their child's chance of having good eyesight is ________.
A.40-67% B.33-60% C.23-40% D.6-15%
3.What is the cause of color blindness, according to the text?
A.Watching movies for too long.
B.Getting too little exercise.
C.Cone cells not working properly.
D.Changes in the wavelength of light.
4.Which statement is RIGHT?
A.You can have superhuman vision after eating a large number of carrots.
B.If your parents have bad eyesight. You might still have good vision.
C.Color blind people see the world in black and white.
D.It's unnecessary to protect our eyes.
5.What is the purpose of the article?
A.To offer some advice on protecting your eyes.
B.To clear up some misunderstandings about our eyes.
C.To provide help for improving your vision.
D.To explain how bad eyesight and color blindness form.
—What can I do for you. Sir?
— I want ________ iPhone 8S plus for my wife as ________ useful gift.
A.an; a B.a; an C.an; the D.a; a
—________will the Bejjing Winter Olympic Games be held? — In 2022.
A.How long B.When C.How many D.Where
B.
C.