People tend to ignore the delayed effects of exposure to chemicals be-考呗网题库移动版
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单选题 People tend to ignore the delayed effects of exposure to chemicals because________.

A． limited exposure to them does little harm to people's health
B． the present is more important for them than the future
C． the danger does not become apparent immediately
D． humans are capable of withstanding small amounts of poisoning

参考答案C
解析:细节理解题。根据最后一段中的“Responsible public health officials have pointed outthat the biological effects of chemicals are cumttlative(积累的)over long periods of time，and that thedanger to the individual may depend on the sum ofthe exposure received throughout his lifetime．”可知，化学品对个人的危害可能取决于人一生所吸收有害物质的总和。因此，C选项正确。
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A． people find invisible diseases difficult to deal with
B． attacks by hidden enemies tend to be fatal
C． diseases with obvious signs are easy to cure
D． people tend to overlook hidden dangers caused by pesticides

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简答题根据以下材料，回答题
Success does not belong to a select group of individuals (个人). Success belongs to those who arewilling to go after it and try their best to do what they have to do. Here are some useful practical ways for youif you want to be a success.
Desire. Desire is the strong wish to achieve a goal. Without desire you have nothing. Before you can runwith desire, your goal must be plain, clear, and it must also be exciting.
Show up. Seventy percent of success in life is showing up. You can't have a best seller, if you havenever written a book. You can't get your dream job, if you're afraid to turn in an application. Showing updoesn't guarantee (保证 ) success, but if you don't show up, you won't succeed.
Fail. Unless you're willing to have a try, fail unhappily, and have another try, success won't happen. Tohave success you have to do things the right way, but often the only way to do something right is to first failat it. As Thomas J. Watson said, a simple formula (公式 ) for success is to double your rate of failure (失败 ). So welcome failure, learn from failure, and soon you will succeed.
Work harder. Everyone runs, but everyone is not willing to run for an hour every day. Success is notabout doing what the common person can't do. It's about doing what the common person is unwilling to do.And on a deeper level, it's about creating habits that the common person is unwilling to create. It's the habitof doing things with excellence that causes success.
Enjoy the journey. Success is a journey, not a destination (终点 ). Success is not a certain car or acertain house or a certain happy marriage. Success is the enjoyment of the journey. You have to enjoy thejourney.
Someone once said," Unless you change how you are, you will always have what you've got. "
You have to change...you will change, and you will succeed.
Please design the teaching objectives according to the material. (10分)

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简答题Please design the key and difficult points. (5 分)

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