根据首字母及汉语提示拼写单词 (共10小题；每小题1分，满分10分)

1.The flood has caused great __________ （损失） to this city.

2.Regular exercise can _______ （释放）happy chemicals into the brain.

3.The space shuttle is a _______（可重复使用的）spacecraft.

4.The doors opened _______ （自动）as we approached.

5.On the________(相反), onlookers who saw Mir’s blazing fragments described it as the experience of a lifetime.

6.The Earth is only one of the n__________ planets in the universe.

7.There are a variety of cell phones available in different price r_______.

8.He lost a leg in the accident and had to use an a__________ one now.

9.The young teachers u_______ the task of welcoming the alumni when they came to celebrate the 50^th anniversary of our school.

10.No one nation can or should try to d______ other nations, for every country is equal.

 

To help the environment, many Americans have made the change from paper and plastic bags to reusable grocery bags. But a report by a Florida newspaper says that reusable grocery bags sold by some supermarkets contain high levels of lead(铅). Lead is a metal that can be harmful to humans, especially young children, Now, Senator Charles Schumer is asking the US government to investigate(调查) the use of lead in reusable shopping bags.

“When our families go to the grocery store looking for safe and healthy foods to feed their kids, the last thing they should have to worry about is poisonous bags.” Schumer said, “A quick investigation will allow everyone to make informed, timely decisions.”  Schumer added.

Lead in the bags is not likely to rub off (因摩擦而粘在……上面)on food. But over time, paint on the bags can chip and the bags can wear out. When this happens, lead can be released(释放).

The Tampa Tribune newspaper said certain bags sold at Publix and Winn-Dixie supermarkets had lead levels that were a concern to health officials. The affected bags were found in Florida. But Publix has more than 1,000 stores in Alabama, Florida, Georgia, Sough Carolina and Tennessee. Publix says that all of its bags are under current laws about lead content, but that they have asked the makers of the bags to reduce the lead levels in the product.

The bags with the highest levels of lead had fancy designs and many pictures. Plain reusable bags without decoration were found to contain little lead. Consumers worried about lead levels in reusable bags can change to cloth or string bags. Paper bags are also a good choice, since paper can be recycled(回收).

Since 2007, Publix supermarkets have sold more than 13 million reusable bags. The store says because shoppers have made the change to reusable bags, it has saved more than 1 billion paper and plastics bags.

1. The shopping bags containing high levels of lead ______.

A．have been reported by a newspaper

B．have been stopped by the government

C．have stopped people from using reusable bags

D．have caused serious health damage to customers

2.From Schumer’s words we can learn that ______.

A．reusable bags do little harm to kids’ health

B．people have shown much concern for the reusable bags

C．people will be informed of the facts about the reusable bags

D．people should refuse to buy things from supermarkets

3.It can be inferred from the text that Publix might believe that the bags they sold are ______.

A．dependable

B．convenient

C．harmful

D．popular

4.Customers are advised to choose bags ______.

A．with colorful designs	B．with fancy pictures
C．made of plastic	D．made of paper

5.From the last paragraph we know that the use of reusable bags has ______.

A．caused Publix a lot of trouble	B．saved Publix much money
C．cost Publix plenty of money	D．been proved a wrong decision

 

Food sometimes gets poisoned with harmful things. A person who eats such food can get an illness called food poisoning. Food poisoning is usually not serious, but some types are deadly, The symptoms ( 症状) of food poisoning usually begin within hours of eating the poisoned food. Fever is one of the most common symptoms.

    Certain microorganisms (微生物) cause most types of food poisoning. Bacteria and other microorganisms can poison eggs, meat, vegetables, and many other foods. After entering the body, these tiny living things release (释放) poisons that make people sick.

    Some chemicals can also cause food poisoning. They are often added to food while it is being grown, processed, or prepared. For example, many farmers spray chemicals on crops to kill weeds and insects. Some people may have a bad reaction to those chemicals when they eat the crops.

    Some plants and animals contain natural poisons that are harmful to people. These include certain kinds of seafood, grains, nuts, seeds, beans, and mushrooms.

    When people handle food properly, the risk of food poisoning is very small. Microorganisms multiply rapidly in dirty places and in warm temperatures. This means that people should never touch food with ditty hands or put food on unwashed surfaces. Food should be kept in a refrigerator to stop microorganisms from growing. Meat needs to be cooked thoroughly to kill any dangerous microorganisms. People should also wash food covered with chemicals before eating it. Finally, people should not eat wild mushrooms or other foods that grow in the wild. Some of these foods may contain natural materials that are poisonous to humans. In addition, some types of fish can be poisonous.

    Most people recover from food poisoning after a few days of resting and drinking extra water.                                                                            

If people eat natural poisons, they must go to the hospital right away to have their stomachs emptied.

 

1. Which of the following statements is NOT true?

A. Food poisoning means death        

B. When poisoned, food can make people sick 

C. Food poisoning comes in varieties   

Ｄ. Food poisoning can be serious

2. We know from the passage that the symptoms of food poisoning ______.

A. only contain fever                       B. are too common to be noticed

C. can be noticed within hours              D. can be ignored

3.Food poisoning can be caused by all the following EXCEPT __________.

A. some chemicals                   B. low temperatures 

C. some tiny living things              D. certain natural materials

4. From Paragraph 5, we can learn that ____________.

A. mushrooms should not be eaten

B. vegetables are safer than meat and seafood

C. natural poisons are more dangerous than chemicals

D. different types of food should be handled differently

5. It can be inferred from the passage that _____________.

A. natural materials are safe in food processing   

B. chemicals are needed in food processing

C. food poisoning can be kept under control     

D. food poisoning is out of control

 

 

最近，很多中学生都纷纷开起了自己的博客。一方面，博客可以作为展示自己的窗口，可以释放学习的压力，因此已经被越来越多的中学生所接受。但是，另一方面，很多家长和老师都认为管理个人博客要花相当多的时间和精力，会耽误学习。

请对这一现象进行简要介绍，并发表自己的看法。

注意：1．词数：l00左右，开头已给出，不计入总词数；

2．参考词汇：开博客 open one's blog。