__1.__  To begin with，cleaner environment，enjoying the game with hundreds of sports athletes and entertainment stars，and the opportunity of contacting people from all over the world seem exciting to the citizens._ 2.__  In most cases，bidding for the Olympics is well supported by both the public and the central government.

Unfortunately，this is not the entire view of the pretty picture. If looking from another angle，the Olympic bid might bring about some side­effects to a city.

__3.__  It includes the increasing pollution of cars，more pressure on water resources，huge amount of wasted leaflets and other materials used for public activities，which are most probably neglected. In order to broaden the streets，some trees may have to be cut. Reduction of farmland may be caused by the need of setting up new sports centers or accommodation facilities. These environmental consequences can be especially serious in a resource­limited and crowded city in a third­world country.

Besides，if not well managed and organized，the big event may not be so beneficial，and the new facilities may be forever empty after the games.__ 4.__

Finally，let’s think about the low­income groups in the city.__ 5.__ More tax，more fees，more expensive property prices，and higher cost of living. These definitely are not good news for them.

A．Hosting the Olympics surely would bring about much gain to a city.

B．We can only benefit from it for a short time.

C．What will they get from the Olympics bidding?

D．First of all，it will bring a lot of environmental problems.

E．There are many reasons for not hosting the Olympic Games.

F．There have been cases that host cities ended up with large debts.

G．Besides，it will definitely promote the emotion and pride in local people.

 

Taking a math test can be pretty stressful. Even if you know the material, you can still get the problem wrong. Knowing how to go through your math test and check your work can save you from handing in a test full of mistakes that can be avoided.   【小题1】 
Write it out
You can also check a math problem by writing everything out on paper.   【小题2】  Writing out math problems reduces your chances of missing anything to the lowest possible level, which is a common cause of incorrect answers.
 【小题3】 
Make sure your answers work by doing the opposite procedure of what your problem calls for, including the answer you got the first time around. In other words, you would use the opposite of this addition problem—subtraction (减法)—to determine whether or not your answer is the correct one.
Plugging in
You may find that a variable isn’t good enough or have a problem where you have to solve for a variable (变量).   【小题4】  This is the only real way to assure yourself that the answer you’ve found is correct.
Check for a reasonable answer
  【小题5】  For example, if you get an answer in the millions and you know it should be in the thousands, you’ve likely misplaced a point. Go back through the work on your paper to make sure all of your formulas (公式) and calculations are correct. If everything looks okay, do the problem again and compare the result of the second try to what you’ve got on the first try.

A．Do the opposite

B．Correct the answers

C．Therefore you’ll improve your grades, as well as your math skills.

D．Plug the variable in the equation (方程) to check it out.

E. If the result of a problem seems to make no sense, it indicates that the answer is incorrect.
F. It also helps you to figure out everything after you have already finished the test.
G. This helps you to know what information you have and what information you need to solve.

Taking a math test can be pretty stressful. Even if you know the material, you can still get the problem wrong. Knowing how to go through your math test and check your work can save you from handing in a test full of mistakes that can be avoided.   1. 

Write it out

You can also check a math problem by writing everything out on paper.   2.  Writing out math problems reduces your chances of missing anything to the lowest possible level, which is a common cause of incorrect answers.

 3. 

Make sure your answers work by doing the opposite procedure of what your problem calls for, including the answer you got the first time around. In other words, you would use the opposite of this addition problem—subtraction (减法)—to determine whether or not your answer is the correct one.

Plugging in

You may find that a variable isn’t good enough or have a problem where you have to solve for a variable (变量).   4.  This is the only real way to assure yourself that the answer you’ve found is correct.

Check for a reasonable answer

  5.  For example, if you get an answer in the millions and you know it should be in the thousands, you’ve likely misplaced a point. Go back through the work on your paper to make sure all of your formulas (公式) and calculations are correct. If everything looks okay, do the problem again and compare the result of the second try to what you’ve got on the first try.

A．Do the opposite

B．Correct the answers

C．Therefore you’ll improve your grades, as well as your math skills.

D．Plug the variable in the equation (方程) to check it out.

E. If the result of a problem seems to make no sense, it indicates that the answer is incorrect.

F. It also helps you to figure out everything after you have already finished the test.

G. This helps you to know what information you have and what information you need to solve.

 

 

1.The children’s mother was very c________ about their safety when they didn’t come back from school at the usual time.

2. I s________ from a bad cold the other day. It took me days to get rid of it.

3. He will g__________ from the Peking University in four years.

4.The boss was _______（完全地）satisfied with what the workers had done.

5.The teacher i_______ that we should hand in the homework at once.

6.He music is very popular with ________(青少年).

7.You must tell me which kind of _________(交通；运输) you prefer to use.

8.It is said that a group of ________(德国人) will pay a visit to our school this week.

9. I want to have a talk with her, but she i________ me and went away.

10.The boy fell in love with the pretty girl g_________(逐渐的).

 

（一）It seems that the Englishmen just cannot live without sports of some kind. ____61____. Wherever you go in this country, you will see both children and grown-ups knocking a ball about with a stick or something, as if in Britain men shall always remain boys and women girls! Still, it can never be bad to get exercise, can it?
Taking all amateur（业余）and professional sports in Britain into consideration, there can be no doubt that football is at the top of the list. ____62____. The game originated（起源于）in Britain and was played in the Middle Ages or even earlier.
The next is rugby, which is called “football” in the United States.______63_____. In rugby, an oval-shaped ball is used which can be handled as well as kicked. It is a pretty rough game.
____64_____. In fact, it has sometimes been called the English national game. Most foreigners find the game rather slow or even boring, but it enjoys great popularity among the British.
Tennis rates high on the list, too. It was introduced into England from France in the 15th century .  ______65______

A．A famous French humorist once said that this is because the English insist on behaving like children all their lives.

B．It is called soccer in the United States

C．It is a kind of football played by two teams of fifteen players than eleven

D．In summer, cricket is the most popular sport

E. Basketball and volleyball were introduced into Britain during the late 19th century from America and are gaining popularity
F. But it was from England that it spread to practically every country in the world.
G. Not everyone likes ball games