Global warming is when the earth heats up，the temperature rises.It happens when greenhouse gases—carbon dioxide，water vapor，nitrous oxide(二氧化氮)，and methane(沼气) trap heat and light from the sun in the earth’s atmosphere，which increases the temperature.This is like when heat is trapped in a car.On a very hot day，the car gets hotter when it is out in the parking lot.This is because the heat and light from the sun can get into the car，by going through the windows，but it can’t get back out.Once the light is inside the car，it is trapped and the heat builds up，just like it does in the earth’s atmosphere.This is what the greenhouse effect does to the earth.The heat and light can get through the atmosphere，but it can’t get out.As a result，the temperature rises.
Sometimes the temperature can change in a way that helps us.The greenhouse effect makes the earth appropriate for people to live on.Without it，the earth would be freezing，or on the other hand it would be burning hot.We would not get the sun’s heat and light to make the night somewhat warm.During the day，especially during the summer，it would be burning because the sun would be up with no atmosphere to filter(过滤) it，so people，plants，and animals would be exposed to all the light and heat.
Although the greenhouse effect makes the earth able to have people living on it，if there gets to be too many gases，the earth can get unusually warmer，and many plants，animals，and people will die.They would die because there would be less food (plants like corn，wheat，and other vegetables and fruits)．This would happen because the plants would not be able to take in the heat.This would cause us to have less food to eat，but it would also limit the food that animals have.Gradually，people，plants，and animals would all die of hunger.
People are doing many things to try to stop global warming.One thing people are doing is carpooling.Carpooling is driving with someone to a place that you are both going to.This minimizes the amount of greenhouse gases put into the air by a car.
Another thing that people are doing is being more careful about leaving things turned on like the television，computer，and the lights.A lot of people are taking time away from the television，and instead，they are spending more time outdoors.This helps our planet out a lot.Now，more people are even riding buses，walking to school，and riding their bikes to lower the amount of greenhouse gases in the air.
Planting trees and recycling also help.If you recycle，less trash goes to the dump，and less trash gets burned.As a result，there are fewer greenhouse gases in our atmosphere.Although adults do many things to help stop global warming，kids can do just as much.
1.By the example given in Paragraph 1，the author wants to ________.
A．explain how greenhouse gases work
B．show his feeling in a car in hot summer
C．tell us cars are causes of greenhouse gases
D．say that there are greenhouse gases in every car
2.The underlined word “it” in Paragraph 2 refers to “________”．
A．light B．heat
C．temperature D．greenhouse effect
3.What is the main idea of Paragraph 3?
A．If there is greenhouse effect，all the plants will die.
B．Human beings are likely to disappear from the earth.
C．Crops can’t take the heat if there is greenhouse effect.
D．Although greenhouse effect is necessary，too much of it causes us to die.
4.What will the author most probably discuss in the paragraph that follows?
A．Why cars and buses pollute the air a lot.
B．What kids can do to help stop global warming.
C．What global warming is doing to the environment.
D．Who should be responsible for the environmental problems.
Tykoon is an online website that allows you to teach your child financial principles through allowances，assignment of tasks and daily chores.As the parent，you can assign a cash value to the things you want your child to do.Then，your child can go in，accept the task and add to their wish list of what they would like to purchase with the money that they earn.
Let’s start with the parent side of things.The parent must be the one to set up the account.You simply enter your information and your child’s information to get started.You are then able to assign allowance amounts to your child.
Then you can add tasks for your child to accept and link them to either their weekly allowance or a predetermined amount.Your child is then able to accept or decline their tasks.They can see how much each task earns，how often they need to do it and what they will get if they do！They can add items that they are working toward earning and can even earn nncash incentives such as extra TV time or staying up late!
Tykoon is a great way to start teaching your child about responsibility and financial principles in fun and safe way.Through the creation of their own profile and the ability to accept or decline tasks，they are taught the skills that they will need later in life when they are managing their own budgets！So，head over and sign up for a free account today and watch your child get excited about doing their chores!
And right now，as a special reward，if you share Tykoon with your friends and have five friends sign up and stay active for more than a month，you’ll earn a $25 Amazon.com gift card！So get your child enrolled(注册)，tell your friends and let’s start teaching all our kids about the important financial principles today!
1.The purpose of the text is to________.
A．make an advertisement
B．share teaching experience
C．describe an online website
D．present a way of making money
2.The underlined word “incentives” in Paragraph 3 is closest in meaning to “________”．
A．promises B．rewards
C．gifts D．tasks
4．What is the best title of the text?
3.What can kids learn from Tykoon?
A．The ability to manage their budgets.
B．The responsibility to do daily chores.
C．The skills to earn their own living.
D．The tricks to accept or refuse tasks.
4.A．Tykoon—A Safe Way to Manage Your Financial Issues
B．How to Create Funny Tasks for Your Kids on the Website
C．Opening an Online Account with the Help of Tykoon
D．Teaching Your Kids Financial Principles with Tykoon
If you want to learn a new language，the very first thing to think about is why.Do you need it for a____reason，such as your job or your studies？__2__perhaps you’re interested in the____，films or music of a different country and you know how much it will help to have a____of the language.
Most people learn best using a variety of____，but traditional classes are an ideal(理想的)start for many people.They____an environment where you can practice under the ____ of someone who’s good at the language.We all lead ____ lives and learning a language takes____.You will have more success if you study regularly，so try to develop a____.It doesn’t matter if you haven’t got long.Becoming fluent in a language will take years，but learning to get by takes____.
Many people start learning a language and soon give up.“I’m too____，” they say.Yes，children do learn languages more ___ than adults，but research has shown that you can learn a language at any____.And learning is good for the health of your brain，too.I’ve also heard people____ about the mistakes they make when____.Well，relax and laugh about your mistakes ____you’re much less likely to make them again.
Learning a new language is never ___.But with some work and devotion，you’ll make progress.And you’ll be ____by the positive reaction of some people when you say just a few words in ___ own language.Good luck！ (2013·安徽)
1.A.technical B．political
C．practical D．physical
2.A.After B．So
C．Though D．Or
3.A.literature B．transport
C．agriculture D．medicine
4.A.view B．knowledge
C．form D．database
5.A.paintings B．regulations
C．methods D．computers
6.A.protect B．change
C．respect D．provide
7.A.control B．command
C．guidance D．pressure
8.A.busy B．happy
C．simple D．normal
9.A.courage B．time
C．energy D．place
10.．A.theory B．business
C．routine D．project
11.A.some risks B．a lot less
C．some notes D．a lot more
12.A.old B．nervous
C．weak D．tired
13.A.closely B．quickly
C．privately D．quietly
14.A.age B．speed
C．distance D．school
15.．A.worry B．hesitate
C．think D．quarrel
16.A.singing B．working
C．bargaining D．learning
17.A.if B．and
C．but D．before
18.A.tiresome B．hard
C．interesting D．easy
19.A.blamed B．amazed
C．interrupted D．informed
20.A.their B．his
C．our D．your
When it comes to social behaviour，mammals are in a league of their own.Some birds may form pairs，or even cooperate to hunt，but the complexity (复杂性) of their relationships can hardly compare to those within a school of dolphins，a herd of elephants or a group of humans.What makes mammalian social groups different from a flock of starlings or a shoal of fish，is that in many cases the individuals could recognize each other.Although we may think that all elephants look pretty much the same，we can easily tell individuals of our own species apart and it has become clear through studies that the same is true of other species.Dolphins have their own signature whistles that act like “names”，and elephants can recognize and greet other individuals they have known but not seen for many years.This is something that only a few species of birds appear to be able to do.
Mammals in complex social groups not only recognize each other as individuals，but also they remember a lot of information about that individual.Social groups often rely on this memory—such as knowing who is dominant to whom，who is related to whom，and who has done what to whom in the past.It’s like remembering who you have lent money to or done a favour for，and who hasn’t repaid that money or has talked about you behind your back.You have to learn who to trust，who your friends are，and who to watch out for.
All this remembering goes on in a particular part of the brain called the neocortex (大脑皮层)．If you compare the size of a mammal’s social group with the size of this part of the brain，you will find they are remarkably closely related.This area seems to take a long time to develop fully and animals in which it is very large take a very long time to grow up to adulthood.During this time，the youngster has to learn all the rules of social behaviour in their group and to piece together all the relationships between the group members：Knowledge that will be needed to avoid getting into trouble.
1.What is special about a mammalian social group according to the passage?
A．All the individuals cooperate to hunt.
B．The individuals can communicate with each other.
C．The individuals can recognize each other.
D．The individuals form closer relationship.
2.The passage suggests that elephants________.
A．are cleverer than dolphins
B．can recognize other species
C．may mistake a member for another
D．have good memories
3. Animals whose area of the neocortex is large________.
A．will have a long period of time before they become adults
B．will spend a shorter time learning the necessary knowledge
C．will learn the necessary knowledge much more easily
D．will have more difficulty in growing up as adults
4. If the neocortex is larger，the animals________.
A．can live a longer life
B．have a smaller social group
C．have a larger social group
D．have a greater body size
It’s a great sunny day，so it’s time to get out and enjoy the weather.Many of us would like to，but we have projects due，tasks that need to be done，people that we need to see，and money that needs to be made.
What if your company gave you that time off as compensation for the great effort that you gave to the team to finish a project on time？See，when it comes to teamwork，the main focus is for the team to work together.In a “winning” team there is an equal balance of people who have unique strengths and weaknesses.
Take the example of the Chicago Bulls of the 1990s.Michael Jordan was the greatest basketball player to play the game，but did they win a championship every year when Michael had played？No.It took a (Dtype) Michael Jordan to lead the team and control the outcome.It took a(n) (Itype) wild and energetic Dennis Rodman to keep the team fun and interesting.It took (Stypes) Scottie Pippin，Bill Cartwright，and John Paxson to support the team.And it took the (Ctype) analytical mind of Coach Phil Jackson to create a foundation for the players to play on.In the end they，the Chicago Bulls，were able to win six championships within eight years.
What is your team made up of？All Jordans？All Jacksons？All Rodmans？Or all Pippins，Cartwrights and Paxsons？It is you who can choose who’s on your team.Try finding the right people for the right job，and you will have a “winning” team every time!
1.We can infer from the first paragraph that________.
A．we need to finish the task
B．we are eager to make more money
C．we are all very busy every day
D．we often go out and enjoy the fine weather
2.The underlined word “compensation” in the second paragraph means “________”．
A．reward B．present
C．money D．duty
3.According to this passage，a winning team is made up of________.
A．a group of people who are tall and strong
B．a group of people who don’t have weaknesses
C．a group of people who don’t quarrel with each other
D．a group of people whose strengths and weaknesses can get to balance
4.What would be the best title for this passage?
A．Working Is Happy
B．The Story of the Chicago Bulls
C．Good Choice
D．Working Together for a Team
Internet dating has become one of the biggest and most successful business ventures on the Internet.Basically，Internet dating is a way to meet people for either friendship or dating without actually having to meet them in person first.
The first thing to do if you decide to try Internet dating is to build your profile (简介) which can include your hobbies，hopes for the future，and so on.A photograph is optional，but many sites claim that a photograph increases the number of people who look at your profile.Many Internet dating sites will charge a onetime registration fee to use their services.
Internet dating makes it possible to meet people from all over the world.Your call even narrow the search down to your area by zip code (邮政编码)．Another advantage is that you can communicate by email before you meet in person.Thousands of people have met，fallen in love，and married through Internet dating.It is an excellent way for shy people to meet.It is also a way for people with busy lives to connect with others，and an easy way to meet people who share your interests.
Just as in conventional dating and love，there are some pitfalls to be aware of in Internet dating.The person you have been talking to on the Net may not be who they say they are.Be very aware that there are some people who misrepresent their appearance or private details，such as marital status，income，and so on，for their own reasons.It would not be the first time that someone has been taken in，and talk shows are full of cheating partners who have been caught dating over the Internet in their spare time.Nevertheless，taking a few simple precautions (防范措施) should help ensure that your Internet dating experience is fun.
1.The purpose of writing the passage is to________.
A．persuade readers to go dating on the Internet
B．inform us how to date on the Internet
C．warn readers against web love
D．introduce Internet dating to us
2.Which of the following is a must to make an Internet dating possible?
A．A photo. B．A profile.
C．Registration fee. D．Business experience.
3.The underlined word “pitfalls” in Paragraph 4 most probably means________.
A．rules B．trends
C．problems D．skills
4.What is probably talked about following the last paragraph?
A．Conventional dating. B．Hidden advantages.
C．Safety measures. D．Romantic love.
