问题 问答题 简答题

玉米细菌性枯萎病的危害如何?怎样防止其传入?

答案

参考答案:

玉米细菌性枯萎病是影响玉米生产的重要病害,主要为害玉米,特别是甜玉米。该病主要通过种子进行远距离传播,是一种典型的维管束病害,植物的根、茎、叶、雄花和果穗等器官都可以被害,病株表现出矮缩或枯萎,对产量影响很大。我国尚未发生,应该严防其传入。

防止其传入的措施:

(1)禁止从疫情发生国或地区引进玉米种子。

(2)加强对从疫情发生国入境货物、人员及行李的检疫管理。

(3)对进境的玉米种子、材料等实行严格的检疫监管。

(4)对来自疫区的非法种子、材料进行销毁。

(5)在生产中发生该病的玉米植株立即销毁并禁种3年以上。

(6)加强对高风险区域的监测。

阅读理解

Survey: Most Chinese think penalty(惩罚) for drunk driving too light

2009-08-18 13:33:53 GMT2009-08-18 21:33:53 (Beijing Time) Xinhua English

BEIJING, Aug.18 (Xinhua) -- Most Chinese people consider drunk driving impossible to stop in the country while the current law(法律) too light for drunk drivers, a survey has found.

According to the survey done by the China Youth Daily, more than 96% of the 1,792 respondents(被告) said people around them had driven after drinking, while more than 81% complained the current penalty was too light, the paper reported Tuesday. Now offenders(违规者) face a three-to-six month suspension(吊销)of their driving licenses and detention(拘留) for up to 15 days in serious cases.

Drunk driving has attracted wide public attention in China after several serious accidents in recent months. On Aug. 4, a drunk driver in Hangzhou killed a 16-year-old girl. Two days later, another drunk driver in Shanghai killed a four-year-old boy and injured three others.

Drunk driving is regarded as just traffic violation if no accidents result, according to the Chinese law. But some people have called for regarding it as a crime no matter whether it results in serious accidents. “If it’s a crime and anyone caught will go to jail(监狱), a lot more people will be afraid of risking it,” said Wang Mingliang, a professor at the Fudan University. However, other people disagreed.

In 2008, China’s alcohol(酒精)-related traffic accidents led to 18,371 deaths, 76,230 injuries, and a property(财产) loss of 250 million yuan ($36.7 million), according to official figures.

小题1:Most Chinese think it’s hard to stop drunk driving because of the __________ penalty for it according to the current law.

A. light                    B. less                 C. heavy

小题2:If a drunk driver is caught now, he or she will have to face __________.

A. a detention and an important report 

B. a suspension of driving license and a detention

C. a suspension of driving license and a serious survey

小题3:How many people died of alcohol-related traffic accidents in China in 2008?

A. 1,792                    B. 18,371                   C. 76,230

小题4:According to the passage, which of the following is true?

A. A drunk driver in Shanghai killed a 4-year-old boy On August 4.

B. Over 1700 respondents in the survey complained the current penalty was too light.

C. China’s alcohol-related traffic accidents caused a property loss of $36.7 million in 2008.

小题5:This passage may come from a __________.

A. newspaper               B. science fiction          C. story book

单项选择题