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

The January fashion show, called FutureFashion, exemplified how far green design has come．Organized by the New York-based nonprofit Earth Pledge, the show inspired many top designers to work with sustainable fabrics for the first time．Several have since made pledges to include organic fabrics in their lines.
The designers who undertake green fashion still face many challenges．Scott Hahn, cofounder with Gregory of Rogan and Loomstate, which uses all-organic cotton, says high-quality sustainable materials can still be tough to find．“Most designers with existing labels are finding there aren’t comparable fabrics that can just replace what you’re doing and what your customers are used to,” he says．For example, organic cotton and non-organic cotton are virtually indistinguishable once put into a dress．But some popular synthetics, like stretch nylon, still have few eco-friendly equivalents.
Those who do make the switch are finding they have more support．Last year the influential trade show Designers & Agents stopped charging its participation fee for young green entrepreneurs（企业家） who attend its two springtime shows in Los Angeles and New York and gave special recognition to designers whose collections are at least 25% sustainable．It now counts more than 50 green designers, up from fewer than a dozen two years ago．This week Wal-Mart is set to announce a major initiative aimed at helping cotton farmers go organic: it will buy transitional cotton at higher prices, thus helping to expand the supply of a key sustainable material．“Mainstream is about to occur,” says Hahn.
Some analysts are less sure．Among consumers, only 18% are even aware that ecofashion exists, up from 6% four years ago．Natalie Hormilla, a fashion writer, is an example of the unconverted consumer．When asked if she owned any sustainable clothes, she replied: “Not that I’m aware of.” Like most consumers, she finds little time to shop, and when she does, she’s on the hunt for “cute stuff that isn’t too expensive.” By her own admission, green just isn’t yet on her mind．But—thanks to the combined efforts of designers, retailers and suppliers—one day it will be.
67．What is said about FutureFashion?
A．It inspired many leading designers to start going green.
B．It showed that designers using organic fabrics would go far.
C．It served as an example of how fashion shows should be organized.
D．It convinced the public that fashionable clothes should be made durable.
68．According to Scott Hahn, one big challenge to designers who will go organic is that        .
A．much more time is needed to finish a dress using sustainable materials
B．they have to create new brands for clothes made of organic materials
C．customers have difficulty telling organic from non-organic materials
D．quality organic replacements for synthetics are not readily available
69．What is Natalie Hormilla’s attitude toward ecofashion?
A．She is doubtful of its practical value.     B．She doesn’t think it is sustainable.
C．She doesn’t seem to care about it.   D．She is very much opposed to the idea.
70．What does the author think of green fashion?
A．Green products will soon go mainstream．
B．It has a very promising future.
C．Consumers have the final say.         
D．It will appeal more to young people.

Producing money requires both artistic and technological skills. Dollar bills are made so that they are interesting to look at but very hard to copy. In total, there are sixty-five separate steps required to make a dollar bill．

The money making process begins when a yearly order is sent by the Federal Reserve Board. That order will then be divided in half. Half will be done here in Washington, D.C. and the other half will be done in Fort Worth, Texas. Next, the Bureau orders special paper which is actually cloth since it is 75% cotton and 25% linen．

This paper is made so that it can last a long time. And, it is made with details that make it hard to copy. For example, bills contain security threads. These narrow pieces of plastic are inside the paper and run along the width of the bill. This special paper is also made with very small blue and red fibers．

Once the money is printed, guillotine cutters (切纸机) separate the sheets into two notes, then into individual notes．The notes are organized in "bricks," each of which contains forty one-hundred-note packages. The bricks then go to one of twelve Federal Reserve Districts, which then give the money to local banks. Ninety-five percent of the bills printed each year are used to replace money that is in circulation, or that has already been removed from circulation．

You may know that America's first president, George Washington, is pictured on the one- dollar bill. But do you know whose face is on the two, five, ten, twenty, fifty and one hundred-dollar bills? They are, in order. President Thomas Jefferson, President Abraham Lincoln, Treasury Secretary Alexander Hamilton, President Andrew Jackson, President Ulysses Grant and statesman Benjamin Franklin．

The average life span of a one-dollar bill is twenty-one months. But a ten-dollar bill lasts only about eighteen months．The one hundred-dollar bill lasts the longest, eighty-nine months．One popular question is about the two-dollar bill. This bill is not printed very often. This is because many Americans believe two-dollar bills are lucky, so they keep them． 

1.During money production, we must consider all EXCEPT that it must                    .

A. last a long time                       B. be hard to copy

C. be done by the president's order D. be interesting to look at

2.We can learn from the passage that the security threads                    .

A. are narrow pieces of plastic

B. are pressed outside the bills

C. are longer than the width of the bills

D. are actually made of cotton and linen

3. How many presidents are printed on the American money?

A. Four                     B. Five                     C. Six                  D. Seven

4.Why are the two-dollar bills not made often?

A. Because no one wants them．

B. Because they aren't damaged quickly like other bills．

C. Because they aren't used in America any more．

D. Because their material is a bit more expensive．

T-shirts on sale

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Item 6: Your purchase of this 100% African organic cotton T-shirt supports the Edun Live cause, which helps create jobs in Africa. These shirts are referred to as "grow to sew African " meaning the farmers, ginners, millers, and stitchers in Africa benefit every time an order is placed. This comfortable and stylish shirt comes in natural color. Price :$13.00.

1.If you want to have a red T-shirt with a Google logo on it, you'd better choose______.

2.One of the unique characteristics of Item 3 is that _____.

3.The underlined word "properties" in the passage can most probably be replaced by"______" .

After two hours ,they were tired _____picking cotton  and had a ______.

of ;stop  B.with ;break  C.for ;rest  D at; pause