根据短文内容，从短文后的选项中选出能填入空白处的最佳选项，选项中有两项为多余选项。（E="AB," F="AC," G=AD） Half a minute? A few seconds?
Google engineers have discovered that even 400 milliseconds—as short as the blink of an eye—is too long for most Internet users.
A millisecond is one thousandth of a second. People hardly notice such a small time difference, but it does cause them to stop searching, reported The New York Times.
Nowadays, millions of smart-phones and computers are constantly gathering and sending out information.you can get digital "traffic jams". Meanwhile, users are expecting faster and faster service.
Google found that if one website is 250 milliseconds slower than another website, then people will visit it less often. Google said people do expect different things from different websites because they realize not all loading times are the same. For example, a person will be more patient waiting for a video clip to load than for a search result.
Even so, four out of five online users will click away if a video takes too long to load. This makes it difficult for video websites to choose between the quality of pictures and fast loading times.
Pursuing a higher speed has always been part of the history of the Internet.
In the 1990s,when the World Wide Web first started to become popular, people called it the "World Wide Wait". But engineers managed to fight the problem with new inventions. They laid a lot of fiber optic cables for high-speed transmissions; they improved software so it would work more smoothly; they placed computer servers all around the world to be nearer to users; all this increased speed.
Nowadays we can enjoy much faster Internet ._ But they will need to keep fighting to keep up with the developing demands of internet users.
| A．Internet is becoming faster and faster. |
| B．With so many people downloading maps, sports videos, news and restaurant recommendations, |
| C．We can not expect a faster speed about the internet. |
| D．Major search engines such as Google and Microsoft's Bing usually find search results in less than a second. |
E. How long are you willing to wait for a webpage to open before you start to lose your patience?
F. This is why technology companies are now competing to be the fastest.
G. it was very crowded and slow;
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Why Exercise Is Cool?
1. Exercise Strengthens Muscles
Did you ever do a push-up or swing across the monkey bars at the playground? By using your muscles to do powerful things, you can make them stronger. For older teens and adults, this kind of workout can make muscles bigger, too.
2.
Can you touch your toes easily without yelling ouch? Most kids are pretty flexible, which means that they can bend and stretch their bodies without much trouble. Being flexible is having “full range of motion,” which means you can move your arms and legs freely without feeling tightness or pain.
3. Exercise Keeps the BalanceYour body needs a certain amount of calories every day just to function, breathe, walk around, and do all the basic stuff.
If you’re not very active, your body won’t need as many calories.
Whatever your calorie need is, if you eat enough to meet that need, your body weight will stay about the same. If you eat more calories than your body needs, it may be stored as extra fat.
4. Exercise Makes You Feel Good
It feels good to have a strong, flexible body that can do all the activities you enjoy—like running, jumping, and playing with your friends. It’s also fun to be good at something, like scoring a basket, hitting a home run, or perfecting a dive.
But you may not know that exercising can actually put you in a better mood. It’s just another reason why exercise is cool!
| A．So you want to do some aerobic (有氧的) exercise right now? |
| B．Food gives your body fuel in the form of calories, which are a kind of energy. |
| C．When you exercise, your brain releases a chemical, which may make you feel happier. |
| D．Those are exercises that can build strength. |
E. Exercise Makes You Flexible
F. Exercise Makes Your Heart Happy
G. But if you’re active, your body needs an extra measure of calories or energy.
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My daughter Chloe is starting out in college in the fall. With her newfound independence will come the newfound responsibilities of dealing with money. Now I have a few lessons I’d like to share with Chloe, and with anyone else starting out in college.
OK, this is almost the only lesson you need. The biggest reason you get into money problems is that you spend money you don’t really have. Then you end up in the hole, and it’s hard to get out of the hole. You work too many hours to keep up with your spending. And you end up with a life that’s about nothing but trying to pay for all the spending on something you don’t really need.
Make a very simple budget. It’s a terrible thing for people who’ve never done a budget, but it will become very simple and easy if you know how to do it. If the bills add up to more than the income, remove some bills.
Pay bills right away. If you have the money, pay the bill as soon as it comes in. You can usually do this online, but if not, it’s just a matter of writing a check, putting it in an envelope, and writing out an address — two minutes. If you let the bill-paying get pushed back, it becomes a terrible thing.
That’s all you need to know. If you save when you’re in college, avoid debt, and pay bills on time, you’re golden.
| A．Why not enjoy your life in college? |
| B．Spend less than you earn. |
| C．So spend less, work less, worry less, be happier. |
| D．Like many young people, she hates thinking about money. |
E. First, list your income, and then list your bills.
F. Find ways to get things done you need to get done.
G. Do this two-minute action at once, so you don’t have to worry about it later.
Trust has been considered as the basis of any relationship, including friendship. No relationship can last long with a lack of trust. Not many of your friends will have real faith in you as you would like to believe. Sometimes, it takes years, even a complete lifetime, to trust someone. However, how do we know if our friends have faith in us?
With whom will you share things that you don’t want everyone to know? It would be with a close friend, whom you trust as much as you trust yourself. While a few of your friends may be fiercely protective of their privacy and may not tell their secrets to anyone, those who do, surely find you trustworthy and reliable.
Whom do you look up to for advice when you need it the most? It has to be either your parents or your friends. This is a shining example of trust. You only seek advice from people you hold in high regard and find dependable. The friends who trust you will never forget to include you in the important decisions of their life.
Arguments and heated discussions are a part of every relationship, and this is also true for friendship. While some people find it difficult to forgive and forget, your friends will never have problems moving on. It is because they trust you and believe that you will never cause any pain to them on purpose.
There are times in life when you find yourself a lonely soldier. Your friends will never let you down and will strongly stand for you when you need encouragement. You can determine that they trust you and believe in your beliefs, if they side with you when you need them the most.
| A．People can be extraordinarily jealous sometimes |
| B．You know they will never pass on a wrong suggestion |
| C．In fact, winning trust is, by far, the most challenging aspect of relationships |
| D．Two people cannot have identical reactions to a situation and different opinions do exist. |
E. No matter how close you are to your friends, you cannot take that comfort level for granted.
F. If your friends share their secrets, there’s a good possibility that they have much faith in you.
G. However, people who are fortunate to have been blessed with true friends are never alone in any battle.
Rules on how to be a fit kid
Being fit is a way of saying a person eats well, gets a lot of physical exercise, and has a healthy weight. If you’re a kid who wants to be fit, here are three rules to live by.
1. Eat a variety of foods.
You may have a favorite food, but the best choice is to eat a variety.Taste new foods and old ones you haven’t tried for a while. Some foods, such as green vegetables, are more pleasing the older you get. Shoot for at least five servings of fruits and vegetables a day--two fruits and three vegetables.
2.
What does it feel like to be full? When you’re eating, notice how your body feels and when your stomach feels comfortably full. Sometimes, people eat too much because they don’t notice when they need to stop eating. And over a period of time, overeating can lead to unhealthy weight gain.
3. Limit screen time.
What’s screen time? It’ s the amount of time you spend watching TV or DVDs, playing video games, and using the computer. The more time you spend on these sitting-down activities, the less time available for active stuff, like basketball, bike riding and swimming.
These rules aren’t magic. However, follow them most of the time and you can become a fit kid sooner or later.
| A．Drink water and milk. |
| B．Listen to your body. |
| C．Eating too much can make you feel uncomfortable. |
| D．There’re a lot of discussions these days about fit kids. |
E. Try to spend no more than 2 hours a day on screen time.
F. Ask your parents to help you do your favorite activities regularly.
G. If you eat different foods, you’re more likely to get the nutrients your body needs.
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Urbanization
Until relatively recently, the vast majority of human beings lived and died without ever seeing a city. The first city was probably founded no more than 5,500 years ago. _. In fact, nearly everyone lived on farms or in tiny rural (乡村的) villages. It was not until the 20th century that Great Britain became the first urban society in history--- a society in which the majority of people live in cities and do not farm for a living.
Britain was only the beginning._.The process of urbanization--- the migration (迁移) of people from the countryside to the city--- was the result of modernization, which has rapidly transformed how people live and where they live.
In 1990, fewer than 40% of Americans lived in urban areas. Today, over 82% of Americans live in cities. Only about 2% live on farms. .
Large cities were impossible until agriculture became industrialized. Even in advanced agricultural societies, it took about ninety-five people on farms to feed five people in cities. _. Until modern times, those living in cities were mainly the ruling elite(精英) and the servants, laborers and professionals who served them. Cities survived by taxing farmers and were limited in size by the amount of surplus food that the rural population produced and by the ability to move this surplus from farm to city.
Over the past two centuries, the Industrial Revolution has broken this balance between the city and the country._. Today, instead of needing ninety-five farmers to feed five city people, one American farmer is able to feed more than a hundred non-farmers.
| A．That kept cities very small. |
| B．The rest live in small towns. |
| C．The effects of urban living on people should be considered. |
| D．Soon many other industrial nations become urban societies. |
E. But even 200 years ago, only a few people could live in cities.
F. Modernization drew people to the cities and made farmers more productive.
G. Modern cities have destroyed social relations and the health of human beings.