Bollworms are a traditional threat to cotton crops．Young ones feed on the boll, the part of the

cotton plant that contains the seeds．

A bacterium known as Bt is able to kill bollworms and some other pests．Bt is short form for Bacillus thuringiensis．It was discovered in the early twentieth century．Farmers began using Bt as a natural pesticide（杀虫剂）．

Then，in the 1990s，researchers found a way to grow cotton plants that contain a Bt gene．The genetically modified cotton plant produces toxins that kill bollworms．Farmers around the world are now growing an estimated fourteen million hectares of Bt cotton．

Cotton bollworms also attack other crops．But scientists in China recently reported that Bt cotton may help suppress bollworm in other crops growing nearby．

The study involved crops grown in six provinces of northern China between 1992 and 2008.The study area contained three million hectares of cotton and twenty-two million hectares of corn，peanuts，soybeans and vegetables．

The researchers say the study suggested that Bt cotton not only controls bollworm on the transgenic cotton，but also may reduce its presence on other crops．And that reduction，they say，may decrease the need for insecticide use in general．

But the researchers also pointed out concerns．They say bollworms could develop resistance to the cotton plants designed to resist them．And they noted that insects called mirids have become “key pests” of cotton in China．They said this is because of a decrease in pesticide use made possible by Bt cotton．

The researchers say they do not believe that Bt cotton alone can solve all insect problems．Instead，they say farmers in China should consider it just one part of pest management systems．

44．What is Bt in this passage?

         A．It's a kind of hi-tech invention．      B．It's a natural bacterium．

         C．It's a kind of pest．                    D．It's a man-made pesticide．

45．Bt cotton has all the advantages EXCEPT that ________．

         A．it resists bollworms

         B．it does good to other crops growing around

         C．it reduces the use of insecticide

         D．it helps to develop new insects

46．The underlined word “ones” in the first paragraph refers to ________．

         A．bollworms             B．cotton crops          C．cotton seeds        D．pests

47．From the passage，we can infer ________．

         A．farmers around the world are now growing a large area of Bt cotton

         B．researchers are probably now searching for new ways to solve other cotton problems

         C．bollworms could not exist in Bt cotton any longer

         D．Chinese scientists found the way to grow Bt cotton

Living and dealing with kids can be a tough job these days，but living and dealing with parents can be even tougher．
If I have learned anything in my 16 years，it is that communication is very important，both when you disagree and when you get along．With any relationship，you need to let the other person know how you are feeling．If you are not able to communicate，your relationship drifts apart．When you are mad at your parents or anyone else，not talking to them doesn’t solve anything．
Communication begins with the concerns of another．It means that you can’t just come home from school，go up to your room and talk to nobody．Even if you just say “Hi” and see how their day is for five minutes，it is better than nothing．
If you look up the word “communication” in the dictionary，it will say “the exchange of ideas，conveyance (传递) of information，correspondence (通信)，means of communication；a letter or message”．To keep a good relationship，you must keep the communication strong．Let people know how you feel，even if it’s just by writing a note．
When dealing with parents，you always have to make them feel good about how they are doing as parents．If you are trying to make them see something as you see it，tell them that you listen to what they have to say，but ask them politely to listen to you．Shouting or walking away only makes the situation worse．
Here is an example．One night，Sophie went to a street party with her friends．She knew she had to be home by midnight after the fireworks．but they didn’t feel she could just ask to go home．That would be rude．After all，they had been nice enough to take her along with them．Needless to say，she was late getting home．Her parents were mad at first，but when Sophie explained why she was late，they weren’t as mad and let the incident go．Communication was the key factor here．If Sophie’s parents had not been willing to listen，Sophie would have been in a lot of trouble．
Communication isn’t a one-way deal．It goes both ways．Just remember：if you get into a situation like Sophie’s，telling the other person how you feel and listening are key factors to communication．
68．The second paragraph mainly talks about ________．
A．the importance of friendship
B．making your feelings known to others
C．the importance of communication
D．the disagreement between generations
69．The key to happy relationship between parents and children is that _______．
A．children should always obey their parents
B．parents play the leading part
C．parents should mind their own business
D．both should make the other know their feelings
70．The example in the passage proves that ________．
A．Sophie’s parents were willing to listen to her
B．Sophie was very polite to her parents
C．Sophie did the right thing when she explained the reason of her being late
D．communication is the key to solving misunderstanding
71．All of the following statements are true EXCEPT ________．
A．if you don’t agree with others，you’d better let them know
B．it is better to say “Hi” to others than to say nothing
C．if you are too busy to communicate，just walk away
D．communication is a two-way deal

A few years ago, Pioneer Hi-Bred International, where I was employed. purchased Norand Corporation. Pioneer's sales representatives in the field used Norand hand-held terminals to upload daily sales information and download new price and sales incentive information. Pioneer bought so many of these hand-held-terminals, the economies made the purchase of Norand look interesting. Owning Norand also allowed Pioneer to explore high-technology markets outside agriculture.
But after a few years, the emerging laptop PC technology made the hand-held units obsolete (已废弃的). Pioneer sold Norand at a loss. Pioneer always took a given percent of the annual profits to divide equally among all employees, so our profit-sharing checks were lower than if Pioneer had not purchased Norand. Additionally, my Pioneer stock was lower than it had been before the purchase of Norand. I was not pleased.
The CEO of Pioneer, Tom Urban, made annual formal visits to each of the Pioneer divisions to talk about the state of the business and to listen to employees' concerns. When he walked into the meeting room for his first visit after the sale of Norand, he acknowledged the group, remove his jacket, and neatly folded it across the back of the chair. He loosened his tie, undid his collar and rolled up his sleeves.The next thing he said was the last thing I ever expected to hear a CEO say.
He said, "I made a mistake buying Norand and I am sorry. I am sorry your profit-sharing was lower because of the purchase, and I am sorry your stock was hurt by the purchase. I will continue to take risks, but I am a bit smarter now, and I will work harder for you."
A great man and leader stood before us that day. As I sat listening to him, I knew I could trust him, and that he deserved every bit of loyalty I could give to him and to Pioneer. I also knew I could take risks in my own job.
In the brief moment of silence before the questions started, I recall thinking that follow him into any battle.
【小题1】All of the following are the results brought by Pioneer's purchase of Norand except     .

第二部分 阅读理解（共25小题，第一节每小题2分，第二节每小题1分；满分45分）

第一节，阅读下面短文，从每题所给的四个选项（A、B、C和D）中，选出最佳选项，并在答题卡上将该项涂黑。

Bollworms are a traditional threat to cotton crops．Young ones feed on the boll，the part of the cotton plant that contains the seeds．

A bacterium known as Bt is able to kill bollworms and some other pests．Bt is the short form for Bacillus thuringiensis．It was discovered in the early twentieth century．Farmers began using Bt as a natural pesticide(杀虫剂)．

Then，in the 1990s，researchers found a way to grow cotton plants that contain a Bt gene．The genetically improved cotton plant produces liquid that kills bollworms．Farmers around the world are now growing an estimated fourteen million hectares of Bt cotton．

Cotton bollworms also attack other crops．But scientists in China recently reported that Bt cotton may help prevent bollworm in other crops growing nearby．

The study involved crops grown in six provinces of northern China between 1992 and 2008．The study area contained three million hectares of cotton and twenty-two million hectares of corn，peanuts，soybeans and vegetables．

The researchers say the study suggested that Bt cotton not only controls bollworm on the transgenic cotton，but also may reduce its existence on other crops．And that reduction，they say，may decrease the need for insecticide use in general．

But the researchers also pointed out concerns．They say bollworms could develop resistance to the cotton plants designed to resist them．And they noted that insects called mirids have become “key pests” of cotton in China．They said this is because of a decrease in pesticide use made possible by Bt cotton．

The researchers say they do not believe that Bt cotton alone can solve all insect problems．Instead，they say farmers in China should consider it just one part of pest management systems．

1．What is Bt in this passage?

A．It's a kind of hi-tech invention．                   B．It's a natural bacterium．

C．It's a kind of pest．                        D．It's a man-made pesticide．

2．Bt cotton has all the advantages EXCEPT that ________．

A．it resists bollworms

B．it does good to other crops growing around

C．it reduces the use of insecticide

D．it helps to develop new insects

3．The underlined word “ones” in the first paragraph refers to ________．

A．bollworms          B．cotton crops         C．cotton seeds        D．pests

4．From the passage，we can infer ________．

A．farmers around the world are now growing a large area of Bt cotton

B．researchers are probably now searching for new ways to solve other cotton problems C．bollworms could not exist in Bt cotton any longer

D．Chinese scientists found the way to grow Bt cotton

Living and dealing with kids can be a tough job these days，but living and dealing with parents can be even tougher．

If I have learned anything in my 16 years，it is that communication is very important，both when you disagree and when you get along．With any relationship，you need to let the other person know how you are feeling．If you are not able to communicate，your relationship drifts apart．When you are mad at your parents or anyone else，not talking to them doesn’t solve anything．

Communication begins with the concerns of another．It means that you can’t just come home from school，go up to your room and talk to nobody．Even if you just say “Hi” and see how their day is for five minutes，it is better than nothing．

If you look up the word “communication” in the dictionary，it will say “the exchange of ideas，conveyance (传递) of information，correspondence (通信)，means of communication；a letter or message”．To keep a good relationship，you must keep the communication strong．Let people know how you feel，even if it’s just by writing a note．

When dealing with parents，you always have to make them feel good about how they are doing as parents．If you are trying to make them see something as you see it，tell them that you listen to what they have to say，but ask them politely to listen to you．Shouting or walking away only makes the situation worse．

Here is an example．One night，Sophie went to a street party with her friends．She knew she had to be home by midnight after the fireworks．but they didn’t feel she could just ask to go home．That would be rude．After all，they had been nice enough to take her along with them．Needless to say，she was late getting home．Her parents were mad at first，but when Sophie explained why she was late，they weren’t as mad and let the incident go．Communication was the key factor here．If Sophie’s parents had not been willing to listen，Sophie would have been in a lot of trouble．

Communication isn’t a one-way deal．It goes both ways．Just remember：if you get into a situation like Sophie’s，telling the other person how you feel and listening are key factors to communication．

68．The second paragraph mainly talks about ________．

A．the importance of friendship

B．making your feelings known to others

C．the importance of communication

D．the disagreement between generations

69．The key to happy relationship between parents and children is that _______．

A．children should always obey their parents

B．parents play the leading part

C．parents should mind their own business

D．both should make the other know their feelings

70．The example in the passage proves that ________．

A．Sophie’s parents were willing to listen to her

B．Sophie was very polite to her parents

C．Sophie did the right thing when she explained the reason of her being late

D．communication is the key to solving misunderstanding

71．All of the following statements are true EXCEPT ________．

A．if you don’t agree with others，you’d better let them know

B．it is better to say “Hi” to others than to say nothing

C．if you are too busy to communicate，just walk away

D．communication is a two-way deal