问题 阅读理解

British researchers are looking for volunteers willing to eat a piece of chocolate daily for a year in the name of science. The trial(实验) will explore whether flavonoids (类黄酮) found in chocolate and other foods can reduce the risk of heart disease.

“We are looking at a high risk group first,” said Aedin Cassidy, a biochemist who will lead the study.

Previous studies have suggested dark chocolate is rich in the beneficial flavonoids linked with heart health, but experts note the high sugar and fat content of most commercially available chocolate might cancel out some of the advantages. Other research has also shown dark chocolate appears to lower blood pressure, improve the function of blood vessels (血管)and reduce the risk of heart attack.

This has encouraged companies to market specific products containing dark chocolate. Mars Inc has introduced Cocoa Via, a line of dark and premium chocolates that plays up such health advantages.

Cassidy said her team will also publish findings in the American Journal of Clinical Nutrition showing that flavonoids found in soy and cocoa appear to have the strongest effects of reducing risk of heart disease.

The next step will organize 150 women volunteers with a specific illness. The researchers will look at whether flavonoids help reduce blood pressure, cut cholesterol levels and improve the condition of blood vessels.

Half the women in the year-long study will eat chocolate containing 30 grams of flavonoids found in soy, cocoa and other fruits and vegetables. The others will get chocolate without the active flavonoids.

“This could help doctors give advice to patients on the type and amount of foods to eat to reduce heart disease risk—and it does not necessarily need to be chocolate,” Cassidy said. “If this trial works we will be able to advise on a whole range of foods. People won't have to go around eating specially designed chocolate.”

1. What is the best title for the passage?

A. Volunteers wanted for chocolate study.           B. Chocolate is good for health.

C. A new research on heart attacks.                 D. Flavonoids found in chocolate.

2. What’s the purpose of the trial?

A. To test the advantages of a new kind of chocolate.

B. To find cures for heart disease.

C. To discover how to control blood pressure.

D. To explore the advantages of flavonoids.

3. From Paragraph 3 we can infer that __________.

A. Cassidy’s team has done several studies on chocolate

B. dark chocolate has proved beneficial to health

C. people should eat much chocolate with high sugar and fat

D. most commercially available chocolate doesn’t contain flavonoids

4. Which of the following statements is TRUE according to the passage?

A. All the volunteers will eat the same chocolate.

B. CocoaVia is a company that produces dark chocolate.

C. People who want to take part in the trial should be healthy.

D. Soy, cocoa, some fruit and vegetables contain flavonoids.

答案

小题1:A

小题2:D

小题3:B

小题4:D

单项选择题 A1/A2型题
问答题

请完成程序,首先由一个类simple实现Serializable接口,并有三个成员变量,分别为int型、double型和String型,可以用toString的方法显示这三个成员变量。在main方法中创建这个simple的持久对象,根据用户在命令行输入的三个参数来设定其中成员变量的值。然后,将这个对象写入名为TheSerial.data的文件中,并显示成员变量。最后从文件TheSerial.data中读出三个成员变量并显示出来。
注意:请勿修改main()主方法和其他已有语句内容,仅在横线处填入适当语句。
import java.io.*;
class TheSerial implements Serializable

private int intvalue;
private double doublevalue;
private String string;
The Serial ()

intvalue=123;
doublevalue=12.34;
string="Serialize Test";

public void setDouble(double d)

doublevalue=d;

public void setInt(int i)

intvalue=i;

public void setString(String s)

string=s;

public String to String()

return("int="+intvalue+" double="+doublevalue+" string="+string);


public class simple

public static void main(String[] args)

The Serial e1=new TheSerial();
TheSerial e2;
try

e1.setInt(Integer.parseInt(args[0]));
e1.setDouble(Double.parseDouble(args[1]));
e1.setString(args[2]);

catch(Exception e)

e1.setString(e.getMessage());

System.out.println(e1);
try

FileOutputStream oS=new FileOutputStream("TheSerial.data");
ObjectOutputStream oOS=new ObjectOutputStream(oS);
______;

catch(IOException ioException)

System.out.println (ioException.getMessage ());

try

FileInputStream iS=new FileInputStream("TheSerial.data");
ObjectInputStream oIS=new ObjectInputStream(iS);
______;
System.out.println(e2);

catch(IOException ioException)

System.out.println(ioException.getMessage());

catch(ClassNotFoundException cnfException)

System.out.println(cnfException.getMessage());