请仔细阅读71-74小题，从A、B、C、D中找出其相对应的标题，并回答第75小题。

It’s the most popular soft drink in our daily life, and it’s sold in almost every part of the world. From advertisements, Coke lovers already know that “it’s the real thing,” and that “Coke adds life.” But many people who enjoy the taste of this well-known drink may not know it has many other uses.

1. Coca- Cola is an ideal household cleaner. You can use it to clean your toilet, your sink or your bathtub. You can clean pans with it. You can clean rust(锈) from a tool and insects from your car windows. Coke can get out oil and blood spots from clothes. It can even remove gum from your hair!

2. Coca-Cola adds a nice flavor to many kinds of meat. Put Coke on beef or pork while cooking, and you will get a surprise! You can also even add it to the ingredients when making some desserts that have chocolate in them. Have a try!

3.  If you are not good with your stomach, Coca-Cola can make you feel much better. Just make sure the Coke is a little flat(没有气的). Got a sore throat? Drink some Coca-Cola and keep them in your throat!

4. Use Coke on your hair while washing to give it an extra shine. Do you just give your skin some lotion every day? Then mix a little Coke with it! Your skin will be smoother!

So give Coke a try. If anything can do it, Coke can!

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

A. Coke, a Tasty Drink                                              B. Surprising Uses of a Popular Drink

C. The Importance of Coke                                     D. To Be Healthy, to Be Away from Coke.

 

For many American teenagers, having a part-time job is an important part of growing up. A part-time job can teach teenagers important skills like responsibility（责任）， independence（独立），teamwork and leadership.

Young people can expand(扩大) their social circles beyond their classmates by making friends with co-workers. And many teenagers find that earning their own money gives them a sense of pride and freedom.

The US Department of Labor allows teenagers to apply for jobs at the age of 14. Popular part-time jobs include working in ice cream stores, coffee shops, and clothing stores. During the school year, teenagers may go to work a few times a week after their classes get out, then work for longer on the weekends.

In the summer, top jobs for teens include working at camps, swimming pools and amusement parks. These jobs are great for young people who want to be active and have fun while making money.

A favorite job for many teens is babysitting(临时替人看小孩), and they can start before 14 if the parents agree. After the children are sleeping and before the parents come home, babysitters have lots of freedom.

As long as they stay in the house and make sure the kids are okay, babysitters can do their homework, enjoy a snack, watch TV, or talk on the phone with friends.

It can be stressful to balance school, homework, and a part-time job. Still, many American teenagers value their work experience and the skills they gain on the job.

1.The author thinks a part-time job can teach teenagers many skills except _____.

A．responsibility

B．teamwork

C．leadership

D．organization

2.American teenagers can work when they are _____ years old by law.

A．fourteen

B．thirteen

C．twelve

D．eleven

3.Where do American teenagers like to work most in the summer?

A．At a shop.

B．In the office.

C．At a camp.

D．At a clothing store.

4.American teenagers like to babysit because they _____.

A．can start before 14	B．can make more money
C．like to play with children	D．have lots of freedom

5.We can infer that American teenagers _____ from the last paragraph.

A．enjoy working more

B．hate going to school

C．don’t have much homework

D．think that skills are important

 

For many American teenagers, having a part-time job is an important part of growing up. A part-time job can teach teenagers important skills like responsibility（责任）， independence（独立），teamwork and leadership.
Young people can expand(扩大) their social circles beyond their classmates by making friends with co-workers. And many teenagers find that earning their own money gives them a sense of pride and freedom.
The US Department of Labor allows teenagers to apply for jobs at the age of 14. Popular part-time jobs include working in ice cream stores, coffee shops, and clothing stores. During the school year, teenagers may go to work a few times a week after their classes get out, then work for longer on the weekends.
In the summer, top jobs for teens include working at camps, swimming pools and amusement parks. These jobs are great for young people who want to be active and have fun while making money.
A favorite job for many teens is babysitting(临时替人看小孩), and they can start before 14 if the parents agree. After the children are sleeping and before the parents come home, babysitters have lots of freedom.
As long as they stay in the house and make sure the kids are okay, babysitters can do their homework, enjoy a snack, watch TV, or talk on the phone with friends.
It can be stressful to balance school, homework, and a part-time job. Still, many American teenagers value their work experience and the skills they gain on the job.
【小题1】The author thinks a part-time job can teach teenagers many skills except _____.

A．responsibility

B．teamwork

C．leadership

D．organization

【小题2】American teenagers can work when they are _____ years old by law.

A．fourteen

B．thirteen

C．twelve

D．eleven

【小题3】Where do American teenagers like to work most in the summer?

A．At a shop.

B．In the office.

C．At a camp.

D．At a clothing store.

【小题4】American teenagers like to babysit because they _____.

A．can start before 14	B．can make more money
C．like to play with children	D．have lots of freedom

【小题5】We can infer that American teenagers _____ from the last paragraph.

A．enjoy working more

B．hate going to school

C．don’t have much homework

D．think that skills are important

A Simple Scientific Experiment

Below is a description of a single scientific experiment. It shows us how iron reacts ( 反应) with air and with water. Aim : To find out if iron rusts( 生锈) (a) in dry air ; (b) in water that has no air in it ( air- free water) ; (c) in ordinary water. Materials : 3 clean iron nails ( 铁钉) ; test tubes ; test tube holder ; cotton wool ; oil ; Bunsen burner.

Iron in dry air Method (1) Put some iron nails at the bottom of a test tube. (2) Push some cotton wool down the tube. (3) Leave the tube for one week. Result After one week, the nails have not rusted. Conclusion Iron does not rust in dry air. Iron in air-free water Method (1) Half-fill a test tube with water. (2) Boil the water for three minutes. (This makes sure there is no air in the water. (3) Put two or three clean nails in the water.

(4)Add some oil to the water. (This will keep air out of the water.) (5) Leave the tube for one week. Result The nails do not rust in the tube with air-free water. Conclusion Iron does not rust in air- free water. Iron in ordinary water Method (1) Half –fill a test tube with water and add two or three clean nails. (2) Leave the tube for one week. Result The nails rust in the tube with ordinary water. Conclusion Iron rusts in ordinary water. (238 words)

1.In the first part of the experiment the cotton wool is most probably used to ______________.

   A. keep the air dry                            B. keep the tube wet

   C. make the nails rust                          D. keep the tube clean

2.What are necessary steps to make sure the water in the tube is air free?

①Leave half a tube of water in it              

②Boil the water for some time

③Put some clean iron nails in the tube           

④Add some oil to the water

  A. ①②                  B. ①③                 C. ②③                D. ②④

3.We can conclude from the experiment that only ____________ makes iron rusty.

A. dry air       B. cotton wool           C. ordinary water         D. air-free water

 

A Simple Scientific Experiment

Below is a description of a single scientific experiment. It shows us how iron reacts ( 反应) with air and with water. Aim : To find out if iron rusts( 生锈) (a) in dry air ; (b) in water that has no air in it ( air- free water) ; (c) in ordinary water. Materials : 3 clean iron nails ( 铁钉) ; test tubes ; test tube holder ; cotton wool ; oil ; Bunsen burner.

Iron in dry air Method (1)Put some iron nails at the bottom of a test tube. (2)Push some cotton wool down the tube. (3)Leave the tube for one week. Result After one week, the nails have not rusted. Conclusion Iron does not rust in dry air. Iron in air-free water Method (1)Half-fill a test tube with water. (2)Boil the water for three minutes. (This makes sure there is no air in the water. (3)Put two or three clean nails in the water.

(4)Add some oil to the water. (This will keep air out of the water.) (5) Leave the tube for one week. Result The nails do not rust in the tube with air-free water. Conclusion Iron does not rust in air- free water. Iron in ordinary water Method (1)Half –fill a test tube with water and add two or three clean nails. (2)Leave the tube for one week. Result The nails rust in the tube with ordinary water. Conclusion Iron rusts in ordinary water. (238 words)

【小题1】In the first part of the experiment the cotton wool is most probably used to ______________.

A．keep the air dry	B．keep the tube wet
C．make the nails rust	D．keep the tube clean

【小题2】What are necessary steps to make sure the water in the tube is air free?
①Leave half a tube of water in it              
②Boil the water for some time
③Put some clean iron nails in the tube           
④Add some oil to the water

A．①②

B．①③

C．②③

D．②④

【小题3】We can conclude from the experiment that only ____________ makes iron rusty.

A．dry air

B．cotton wool

C．ordinary water

D．air-free water