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-优题课

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。
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 “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．Major search engines such as Google and Microsoft's Bing usually find search results in less than a second.

D．We can not expect a faster speed about the internet.

E. This is why technology companies are now competing to be the fastest.
F. How long are you willing to wait for a webpage to open before you start to lose your patience?
G it was very crowded and slow;

Many facts suggest that children are overweight and the situation is getting worse, according to the doctors. .
Some people blame(责备) the fact that we are surrounded (包围) by shops selling unhealthy, fatty foods, such as fried chicken and ice cream, at low prices. , then probably children would buy less take-away food.
. I agree with this, because good eating habits begin early in life, long before children start to visit fast food shops. If parents often give their children fried chicken and chocolate rather than healthy food, they will go for sweet and salty foods, and children will find it hard to get rid of the habit.
There is a third reason for this situation. Children these days take very little exercise. They do not walk to school. When they get home, they sit in front of the television or their computers and play computer games. . What they need is to go outside and play active games or sports.
The above are the main reasons for this problem. , as well as forcing them away from fast food shops and bad eating habits.

A．There is another argument that blames parents for allowing their children to become overweight

B．Adults are becoming fatter and unhealthier too

C．If there were fewer of these restaurants

D．Therefore we have to encourage young people to be more active

E. Not only is this an unhealthy pastime (消遣), it also gives them time to eat more unhealthy food
F. I feel there are a number of reasons for this
G. It’s a good idea to allow children to eat what they choose

Most people who move to a foreign country or culture may experience a period of time when they feel very homesick and have a lot of stress .This feeling is often called‘culture shock’ .There are four general stages of cultural adjustment.
The first stage is usually referred to as the excitement stage. Upon arriving in a new environment, you’ll be interested in the new culture, everything will seem exciting, everyone will seem friendly and helpful and you’ll be overwhelmed(不知所措) with impressions. and you have little meaningful experience of the culture.
The second stage is sometimes called the withdrawal stage. The excitement you felt before changes to frustration (沮丧)as you find it difficult to deal with the problems that arise. simple things like shopping and going to the bank are challenges. It is at this stage that you are likely to feel anxious homesick. .
Culture shock doesn’t exist long. You gradually get into the‘recovery’ stage. At this point, you’ll have a routine, and you’ll feel less lonely as you start to understand and accept the way things are done and the way people behave in your new environment. Customs and traditions are clearer and easier to understand.
The last stage is the ‘home’ stage – this is the point when people start to feel at home in the new culture.
There is a fifth stage to this process. If you decide to return home after a long period in a new culture, you may experience what is called ‘reverse culture shock’. you may notice things about your home culture that you had never noticed before, and some of the ways people do things may seem strange.

A．It is a great challenge to learn the totally new culture.

B．This is the stage which is referred to as “culture shock”

C．During this stage you are taking in these impressions passively

D．Some people experience “culture shock” more sharply than others.

E. This means that you may find aspects of your own culture “foreign”
F. At this stage ,you’ll deal with new challenges with humor rather than anxiety.
G. It’s important to learn how to deal with it if you’re to adapt to the new culture.

根据内容，从短文后的选项中选出最佳选项，选项中有两项为多余选项。
Drinking water is so important for good health. When in school, you learned what water is made up of. However, what you may not have learned is how much water you need in order to be healthy.
As we all know, 60﹪ to 70﹪ of the body is water. Your body needs water to control body temperature and to carry nutrients to all parts of the body.When you are very active, for example, playing football, you’ll lose more water. If you don’t drink water at once, it will do harm to your health.
Take your weight in pounds and divide that number in half. That gives you the number of ounces of water that you need to drink per day. For example, if you weigh 160 pounds, you should drink at least 80 ounces of water per day.
Twenty percent of your water need will come from the foods you eat. Water is the best choice. Sodas have a lot of sugar in them, so if you drink sodas, you may take in more calories than you need.

A．Why do you need to drink water?

B．The rest should come from what you drink.

C．How much water do you need to drink every day?

D．Juices are good because they have lots of nutrients.

E. Now let’s take a look at where your water need comes from.
F. Water can also play an important part in protecting your body.
G. You also learned how it is important to our body.

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。
___
Home can be a great place for children to study.It's important to provide a workspace of their own where they can read books or just write a letter to their friends.
●Location (位置)
____Kitchen and dining room are not so well suited for regular study，since books and pens get in the way of the daytoday uses of those areas.Set up a place where a child can settle in and leave papers and pens at hand without having to clear everything away each night.For a child that likes being alone，set aside a corner of his bedroom，but keep it separate from things like games，music and other hobbies not related to studying.
●Keeping Things in Order
Parents should encourage their child to spread out，but to leave it neat and orderly when he isn't using his workspace.Ownership is very important for selfrespect ____ The workplace should be personal，but not another part of the playroom.
●___
Encourage the whole family to help build a supportive environment that children need for success in school.Give them a good example of how to deal with problems，how to manage time and get things done in the right way.__ _Study will be more enjoyable and effective when supported by the whole family.

A．Attitude Is Everything

B．Bring Organization into Your Home

C．Here are several ways to choose a location.

D．Building a Good Home Learning Environment

E．Hold a cando attitude and your child will follow your example.
F．Setting up a space in a common area of your home can be a good idea for children.
G．A child who learns to organize his space will carry organization into every corner of his life.