【題目】—Mom, I’ll take an important test tomorrow.
—Don’t be nervous, Kate.
A.Good luck!B.Good idea!C.Well done!D.Have a good time!
科目：初中英語 來源： 題型：
【題目】A: Alex, do you like to drive?
B: Sure. But I don't like to sit in traffic!
A: When I'm tired, I avoid driving.
B: I know. 【1】 I don't drive when the weather is bad.
A: So a self-driving car, would be really great.
B: A what?
A: A self-driving car. You can go to places at the push of a button (按鈕).
B:【2】
A: Sure. Choose a place you want to go to and program the car. Then you push a button. And the car takes you there.
B: You don't have to do anything?
A: No.【3】
B: What a great invention! Just think. Blind people could use self-driving cars.
【4】
A: Right. Now many old people give up their cars because they're no longer safe drivers.
B:【5】
A: Yes.
A.It's not safe.
B.Would you like one?
C.You just enjoy the ride!
D.And old people could use them, too.
E.Could you please tell me how it works?
F.So self-driving cars are very convenient for them.
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科目：初中英語 來源： 題型：
【題目】 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.
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【題目】Bacterial Quorum Sensing
Bacteria(細菌)play an important role in our lives. They can keep us alive as well as make us sick. It wasn’t until fairly recently that we learned bacteria can communicate with one another.
In the 1960s, researchers found that a kind of bacteria called Vibrio fischeri（費氏弧菌） produced no light when they were alone, but that they exhibited great amount of light as the bacterial population grew to a certain number. How did this happen? How can Vibrio fischeri tell the difference between times when they’re alone and times when they’re in a community, and then all do something together?
Researchers found they talk to each other with a chemical language—signal molecules(信號分子). Vibrio fischeri makes signal molecules, and it also has a receptor on its surface that fits like a lock and key with a signal molecule. As the bacteria increase, more and more signal molecules are sent into the environment. When signal molecules increase to a certain amount, they lock down into those receptors and information comes into the bacteria, which tells them how many neighbors there are. As soon as they realize the population has hit the certain number, all of the bacteria behave as a group, making light together. In the past ten years, researchers have found all bacteria have systems like this: they make and recognize chemical words, determine(判斷)the size of the community, and carry out tasks that would be unsuccessful if a single one were to act alone. This process is called quorum sensing.
Most of the time, bacteria live with thousands of other species (種類)of bacteria. There has to be a language of interspecies communication. In fact, bacteria have another kind of signal molecule, which is the common language used by all species. Moreover, this kind of molecule has its own receptor. In this way, bacteria are able to count different populations, and then they decide what task to carry out depending on which species has the greatest population.
Knowing how bacteria communicate could influence how we fight disease. What if bacteria can’t talk or hear? They won’t recognize when there are enough bacteria and when to exhibit the group behavior to make us sick. Researchers are developing a method—to make molecules that look like the real ones and then they lock into the receptors to jam recognition of the real situation.
On the other hand, researchers also improve the conversation of the beneficial bacteria, so they can do things that we want them to do better than they would do on their own.
【1】According to the passage, what can we learn about quorum sensing?
A.Quorum sensing may happen when there is only one Vibrio fischeri.
B.Signal molecules are kept away from receptors during quorum sensing.
C.Most bacteria have similar systems to make light during quorum sensing.
D.Bacteria carry out a group task when their population hit a certain number.
【2】What can we learn from the passage?
A.The more species there are, the more group actions bacteria will take.
B.In different environments, bacteria have different interspecies languages.
C.Beneficial bacteria communicate better by themselves than harmful ones.
D.To fight disease, researchers try to turn off the communication between harmful bacteria.
【3】The passage is mainly about ________.
A.why bacterial population growsB.how bacteria communicate with each other
C.which bacteria help fight diseaseD.what scientists do to find quorum sensing
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【題目】 He was a _______ father, raising a 5-year-old boy by himself. He was often _______ his son growing up without a _______ to care for him.
One day, he went away on business, leaving the child _______. He worried about the child all the way, not knowing _________ he had eaten. But his child always told him not to worry. He _______ went home after he finished his work.
When he got home, the child was deep asleep. He was tired out. He was about to _______ when he was surprised to find an overturned(推翻) bowl of _______ under the quilt(被子).
He hit his sleeping son angrily, “Why are you so _______, making the quilt dirty? Who will wash it?” It was the first time that he had __________ his boy after his wife’s death.
“Sorry, but …” the child ______________ with tears in his eyes, “This is your supper, Daddy.” In order to let his father eat dinner the moment he got home, the child prepared two bowls of noodles: one for himself, ______________ for his father. He was afraid that his father’s noodles would get __________, so he placed them under the quilt.
______________ this, the father hugged his boy tightly ____________ saying a word.
【1】A.happyB.singleC.cleverD.sad
【2】A.worried aboutB.proud ofC.angry withD.excited about
【3】A.fatherB.sisterC.brotherD.mother
【4】A.aloneB.freelyC.earlyD.lonely
【5】A.whatB.thatC.ifD.where
【6】A.firstlyB.finallyC.quicklyD.softly
【7】A.sleepB.eatC.drinkD.sit
【8】A.dumplingsB.noodlesC.riceD.soup
【9】A.wrongB.seriousC.carefulD.careless
【10】A.hitB.kissC.hugD.lift
【11】A.thoughtB.shoutedC.explainedD.left
【12】A.anotherB.the otherC.otherD.others
【13】A.badB.niceC.warmD.cold
【14】A.SeeingB.FindingC.HearingD.Feeling
【15】A.withB.withoutC.onD.in
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【題目】—Would you please give me a speech on Chinese traditional festivals tomorrow?
—_________, but I'm going to Guangzhou for a meeting.
A.It doesn't matter.B.Best wishes.C.Not at all.D.I wish I could.
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【題目】 The next time you look up at the sky and see a cloud that looks like Mickey Mouse or your favorite fruit, look again. It may not be a cloud, but a Flogo — a 1ogo (標語) that flies. It's a new form of advertising(廣告) in the sky that's never been used before. It's a different way to market your products, logos, and events.
These funny logos are made with soap bubbles (肥皂泡) mixed with a little helium gas (氦氣) , which makes them lighter than air and float in the sky. Special machines are used to make these new funny Flogos. The machine, which can be rented for $ 2,500 a day, can make a Flogo every 15—25 seconds.
Flogos can fly much higher or lower if needed. They can last from a few minutes to an hour anywhere in the sky, depending on the weather conditions. Though they can fly to 20,000 feet, they usually float around at 300—500 feet. Flogos are only white now, but people hope to have more colorful Flogos in the near future.
Flogos are Green, 100% environmentally safe, because the soap used to make the Flogo comes from plants and leaves. So this fun way of advertising is healthy and good for the environment.
【1】Flogos are mainly used to________.
A.produce colorful cloudsB.advertise in the sky
C.make attractive bubblesD.tell weather conditions
【2】Why are Flogos healthy and good for the environment?
A.Because they can float high and last for a long time in the sky,
B.Because there is a little helium gas mixed with soap bubbles.
C.Because people use special and expensive machines to 'make Flogos.
D.Because people use plants and leaves to produce the soap bubbles.
【3】From the passage, we can infer that Flogos________.
A.can fly for hours in the sky all dayB.can have different colors at present
C.may be influenced by the weatherD.may be the cheapest way of advertising
【4】Which of the following can be the best title of the passage?
A.Machines—Used for Flogosl!B.Flogos 一 Logos that fly!
C.Advertising—Made of Fruits!D.Clouds 一 Like Mickey Mouse!
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科目：初中英語 來源： 題型：
【題目】I’d like to buy a new house ------comfortable and modern. ______, it should be in a quiet neighborhood.
A.After allB.In allC.Above allD.First of all
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