Have you ever noticed the black and white bars on a book?Do you know what they are used for?

They are bar-codes(条形码)used in most products. If you go to a supermarket,you can see almost every product with a bar-code on it. Bar-codes have information about the product, such as name and production date.It's an easy and convenient way to know about the products. Just scan the bar-code and everything is clear.

The first use of a bar-code in a supermarket checkout system was on a pack of American Wrigley Company chewing gum in 1974.Beyond supermarkets, bar-codes are needed everywhere:for renting cars, for luggage checks on a plane, for parcels(包裹) you send. Life would be rather difficult without bar-codes.Most of our things would get lost in the post.

Bar-codes change as well.Bar-codes in the past were 1-D(one-dimensional空间), but now there are 2-D bar-codes,such as QR code.Since 2009, QR has been used on Chinese train tickets. People can enter stadiums,cinemas and theaters by holding certain types of bar-codes.

With these small codes, life is getting much easier for us.

If you find these bar-code things boring, a bar-code building might be more up your street. In St Petersburg, Russia, there is a building designed like a bar-code.It looks strange, but it's actually a shopping mall. There are games too. Bar-code Monsters is a mobile phone game. You have to scan bar-codes and find the monsters!

1.Bar-codes were first used in ________.

A.1974 in the UK B.1974 in the US C.2009 in China D.2009 in Russia

2.The underlined word “scan”might mean “________” in Chinese.

A.复印 B.展示 C.描写 D.扫描

3.From Paragraph 3 and 4, we can learn that ________.

A.bar-codes are very useful in our daily life B.our things will get lost without bar-codes

C.bar-codes make our life rather difficult D.we can’t live without bar-codes

4.Which of the following is NOT true about the bar-code building?

A.It looks like a bar-code. B.It’s in St Petersburg, Russia.

C.It’s used as a shopping mall. D.Its name is Bar-code Monsters.

5.The best title of this passage is________.

A.From 1-D Bar-codes to 2-D Bar-codes B.Why Bar-codes are Black and White

C.Small Codes that Make a Big Difference D.What if the World Doesn’t Have a Bar-code

Do you remember where you were when you heard the news about the traffic accident of a close friend? The answer is probably yes. Do you remember what you were doing on your birthday that year? You may have to think a little harder.

People remember bad memories more easily and in greater detail(细节) than good ones. Why is that? A new study finds that people do this because of evolutionary(进化的) reasons.

Elizabeth Kensinger and his partners in Boston College, US, did a study looking at this. They found negative feelings like fear and sadness caused(导致) an increase(增长) in brain(大脑) activity. This activity happens in the part of the brain that controls(控制) memories, So memories caused by negative feelings are kept in greater detail than happy or other kinds of memories.

For example, after seeing a man on a street holding a knife, people remember the knife clearly, but they forget the details of the street.

According to Kensinger, it is easy to understand this in an evolutionary(进化论的) point of view. He said that people paid attention(注意) to dangerous information so they could use that information to guide their actions and save their lives. They could also use it to plan for similar events in the future.

The scientists say more studies are needed on how we remember bad memories. This line of research will help solve the problem of stress(压力) disorder(失调).

1.According to the passage, good memories are remembered ________ than bad ones.

A.more in detail B.less often C.longer D.more easily

2.The underlined word " negative" in the third paragraph means "________" in Chinese.

A.简单的 B.负面的 C.难忘的 D.相似的

3.When a girl breaks into tears, ________________.

A.she will have the problem of stress disorder B.she can control her memories well

C.She will have a happy memory. D.her brain activity will increase

4.What does the writer want to tell us by using the example of a man holding a knife?

A.People pay more attention to dangerous information.

B.People could learn from the man.

C.People could plan for danger in the future.

D.People have the ability to save themselves from danger.

5.What's the best title of the passage?

A.Brain Activities Control Memories B.How We Remember Bad Memories

C.Bad Memories Are Easier to Remember D.Bad Memories Can Cause Stress Disorder

B)先阅读下面短文,掌握其大意,然后根据短文内容从下面方框内的七个选项中,选择五个还原到文中,使短文意思通顺、结构完整。

Bad days happen to most of us when we just wake up in a really bad mood.When something has made you angry,sad or disappointed,you still have to get up and go to work.But before you get there,you’re already very angry inside.

Not much fun, huh? Luckily, you can do something about it. 1. .

Accept your bad mood

Being in a bad mood is not that hard.Fighting a bad mood only prolongs(延伸)it,so if you're mad,be mad,and if you’re sad,be sad.This does not give you license to be rude. 2.

Tell others

You can try to keep your bad mood a secret and put on your happy mask (面具).Guess what, you're fooling nobody.Your co-workers(同事)will notice and they will wonder what they’ve done to get you out. 3. Simply tell them“Listen,guys!I’m in a really bad mood today.I’m not sure why.If I bite your head off,I apologize in advance(提前道歉).”

Remember the good things

When you’re in a bad mood,everything is bad. 4.

Spend a few moments to try thinking of at least one or two things that aren't all bad,such as something you look forward to,a person you like at work,or something nice that happened recently.

5.

And if you're having a really bad day,it may be a good idea to withdraw(退出)a little if you can.Take a walk in your lunch break.Sit and work somewhere quiet.Take a long bathroom break.Consider going home early or taking the day off.

A.The best thing to do is to tell the people you work closely with.

B.Take some quiet time

C.It’s important to get along well with others.

D.It just means that you need to accept your bad mood to be able to do something.

E..Here are some ways to turn around a bad day.

F.Ask for advice.

G.But the good things you appreciated yesterday are probably still there--you’re just not seeing them.

When I was young, after church on Sundays, we would always have a delicious Italian dinner at my grandmother’s house. My grandmother’s slow-cooked sauce(酱) was the key. We would all eat, talk and laugh until our stomachs were full. After mum and grandfather passed away, my dad would still make the sauce from time to time and invite me and my brother over to his little house for a dinner full of fine food and happy memories.

When my dad died, he passed the family recipe(食谱) on to me and my daughter. We often made the sauce for dinner, but for some reason it never tasted quite right. At first, I thought we had gotten the recipe wrong, but one day I realized what was missing. On that day right before dinner, I closed my eyes and imagined my dad, mum and grandmother all sitting at the table around me. Then I placed the pasta on my fork and slowly put it in my mouth. It tasted perfect. From that moment, I realized the secret was, of course, what it had always been: Love!

1.The author thought the food he used to have at his grandmother’s house was ________.

A.not fresh B.boring C.delicious D.not tasty

2.________ would still make the sauce for the family after the writer’s mum and grandfather passed away.

A.His wife B.His father C.His brother D.His sister

3.The writer made Italian food himself, but it never tasted right because ________.

A.he used the wrong recipe B.his family wasn’t with him

C.he was not good at cooking D.he missed his grandmother

4.According to the writer, ________ was the key to his grandmother’s dinner.

A.fresh ingredients B.a special recipe

C.love for one’s family D.slow-cooked sauce

It's not WASTE until it is WASTED!

With the World Environment Day coming, our school is now requiring every student to form a habit of sorting the waste. Here in our schoolyard we lay four different colors of rubbish bins for different kinds of rubbish. The red is for harmful waste; the blue is for waste that can be recycled (循环再用); the green is for kitchen waste; the yellow is for other waste.

The followings are some instructions for you.
Glass: Empty bottles without caps can be recycled to make new glass bottles.
Warning: Mirrors and light bulbs (电灯泡) must not be included in the glass waste.
Paper: Newspapers, magazines, boxes must be clean enough to be recycled.
Warning: Paper tissues (餐纸) and wall paper are not recyclable as paper and should be kept separately.
PMD waste: Packaging made of Plastic or Metal and Drink boxes are used to make new packaging.
Warning: Plastic pots (e.g. yoghurt pots), plastic bags must not be included with the PMD waste.
Harmful waste: out-of-date drugs, used batteries (电池), paint and oil…
Besides, if you don't need your old bikes at all, our school volunteers will collect them. We're going to fix them up and then give them away to kids who don't have enough money for a bike.
To find out more about recycling, you can visit our school website.

1.According to the passage, __________ different colors of rubbish bins are laid in the schoolyard.

A.4

B.5

C.6

D.7

2.The fish bones (骨) should be thrown in the __________ bin.

A.red

B.green

C.blue

D.yellow

3.From the passage, we can see that __________ are harmful to the environment.

A.paper tissues B.empty bottles

C.drink boxes D.out-of-date drugs

4.If you give your old bike to the volunteers, it will be __________.

A.sold to collect money for the poor kids

B.fixed up and given back to you for free

C.fixed up and given away to the poor kids

D.given away immediately to the poor kids

5.The main purpose of this passage is ________.

A.to look for volunteers for waste sorting

B.to introduce waste sorting to the students

C.to introduce the World Environment Day

D.to advertise glass, paper and plastic products

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