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(近視)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 (視錐細(xì)胞) that sense different wavelengths (波長) 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.

My wife, daughter, and I moved into our home nine years ago and we _______ a lot of time and energy working in the yard to get it look like what it does today. We called this area our "rock garden" because there were so many rocks. We did the best we could to make the yard _______. Then, we started to grow plants and flowers and _______ them carefully.

Last summer I walked to the end of the rock garden and found a tiny little plant that I could not immediately tell what it was. I knew I didn't plant it and Denise said that she didn't _______. We decided to let it continue growing until we could _______ what it was.

Weeks passed and as I made my way back to the mystery (神秘的) plant, I found it grow taller. It appeared to be a Sunflower. As I pulled rocks from the area, I noticed something _______. The Sunflower didn't start where I saw the stalk (莖) begin. It actually began under a big rock and grew under and around it to _______ the sun.

Suddenly I realized something. "_______ a tiny little Sunflower has the ability of overcoming a big rock standing in its way of developing, we also have the ability of doing the same thing. "Like the Sunflower, it knew it had the ability to overcome difficulties.

Stand tall like the Sunflower and take ________in who and what you are and the environment will begin to support you. You will find a way to go under or around big difficulties in order to achieve your goal.

【1】A.ideaB.opinionC.experienceD.influence

【2】A.spentB.paidC.tookD.cost

【3】A.uncleanB.tidyC.messyD.dirty

【4】A.looked forB.looked afterC.looked throughD.looked over

【5】A.tooB.alsoC.eitherD.so

【6】A.find outB.look outC.put outD.try out

【7】A.interestingB.enjoyableC.ordinaryD.unusual

【8】A.holdB.reachC.catchD.have

【9】A.BecauseB.AlthoughC.IfD.But

【10】A.praiseB.prideC.attentionD.advice

— I want ________ iPhone 8S plus for my wife as ________ useful gift.

A.an; aB.a; anC.an; theD.a; a

內(nèi)容提示:

(1) What did he/she do?

(2) What can you learn from him or her?

要求：

1.中心突出，語義連貫，層次清晰，書寫規(guī)范：

2.文中不得出現(xiàn)真實(shí)的姓名和校名；

3.詞數(shù)80左右。

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She arrived at her gate, sat down and started reading her book. She read her book so carefully that she didn’t notice what was going on around her. But she did see that a man had sat down next to her and taken one of her cookies out of the bag.

She pretended(假裝) not to notice, as she didn’t want to make a scene(當(dāng)眾大吵). But then the man took more. He kept eating the cookies until there was just one left. The man took the last cookie and broke it in half. He tapped the woman on the shoulder and held out one half to her.

The woman could not believe how much nerve (勇氣) this man had to steal (偷) all of her cookies and then offer half a cookie in return. She angrily grabbed (奪) the half-cookie out of his hand and ate it without any words.

Finally, it was time for her to board. As she went to the gate, she reached into her purse. Suddenly, she realized that her bag of cookies was still in her purse. The man had eaten his own cookies the whole time and simply wanted to share the last one with her. The woman’s face turned red with shame. So she quickly caught up with him and said, “__________.”

When we’re not paying attention to the world around us, it can be easy to misunderstand what’s happening or even become angry with others. It is better to keep our eyes open and think about every possibility when trying to understand a special situation.

【1】Did the woman arrive at the airport so early?

____________________________________________________________

【2】Why couldn’t the woman notice what happened around her at all?

____________________________________________________________

【3】What did the man do with the last cookie?

____________________________________________________________

【4】How did the woman feel when she was offered the half-cookie?

____________________________________________________________

【5】When did the woman realize her mistake?

____________________________________________________________

【6】What did the woman probably say to the man?(Please fill in the blank in Paragraph 5 with one sentence.)

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Luckily, researchers at the University of Technology（UT）in Lima, Peru heard about their problem and found a wonderful solution. They made a lamp that can be powered by plants and soil, both of which can be easily found in the Amazonian rainforest where the village lies. The lamp takes energy from a plant growing in a wooden box and uses it to light up an LED light bulb.

While that may sound amazing and even impossible, the science behind the ides is quite simple. As plants create their food (using the sun’s energy, water and chemicals from the soil), they also produce waste which they return to the soil. Tiny animals in the soil eat this waste and they produce electrons—the building blocks of electrical energy. The UT team put special sticks inside the soil to capture the energy and keep it in the lamp’s batteries for later use. The researchers say a single charge can power a 50-watt Led light for two hours-enough time for local villagers to get their evening work done.

The university gave ten Plant Lamps to the villagers of Nuevo Saposoa in October 2015. So far, they have been a huge success! Elmer Ramirez, the UT professor who invented the lamp, believes the Plant Lamp could help improve the lives of many people, especially small rainforest communities, 42% of whom have no electricity.

【1】What are the problems of oil lamps according to Paragraph 1?

A.They are difficult to use and create pollution.

B.They are expensive to buy and easily damaged.

C.They are difficult to repair and produce little light.

D.They are expensive to use and can be bad for health.

【2】The electricity made by the Plant Lamp comes from________.

A.plant foodB.plant wasteC.the soil’s heatD.the sun’s energy

【3】What is true about the Plant Lamp?

A.It can be made by local people.

B.It is much easier to use than oil lamps.

C.It can produce all the electricity the village need.

D.The things it needs to make electricity are easy to find.

【4】Who can benefit (受益) most from the Plant Lamp according to its inventor?

A.The rainforest communities.B.Poor people in cíties.

C.Farmers in Lima.D.The UT team.

【5】What is the purpose of the passage?

A.To report on a new invention.B.To explain a new scientific theory.

C.To describe how electricity is made.D.To discuss the problems of poor villages.