题干

生活在我国长江流域的中华鲟被誉为“活化石”。2009年10月4日,我国某研究所在世界上第一次成功实现了中华鲟全人工繁殖。这是人类在保护这一濒危物种过程中取得的重大技术突破,具有里程碑意义。从联系的观点看,人工繁殖中华鲟的成功说明
①离开了人为事物的联系,自然事物的联系就不能实现 ②认识事物的本质联系,能引导事物朝有利的方向转化 ③发挥主观能动性,人可以创造有利于实践的具体联系 ④离开了事物的真实联系,主观能动性就不能发挥作用

A:①②

B:②③

C:②④

D:③④

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B

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    Everyone takes drugs. Sometimes a drug might be called a herb but the effect is the same. Drugs and herbs can make life better for they are used to improve health. From the simplest headache to a cure for cancer, people believe that certain drugs can help them. But there is danger if the drugs are not used in a proper way.

    American teenagers sometimes use certain drugs to feel good. They call this “getting high”. The problem is that once a young man or a young woman has the feeling of “getting high”, they want to do it often. If school is boring or too hard, students might get depressed and a drug or herb might help them feel better. If the student takes too much of a drug, the body may change in a wrong way such as a confused mind, poor sight, a headache, and an uncomfortable stomach.

    Schools now have D.A.R.E.program which means Drug Abuse Resistance Education. This program was started so that young students from age 10 to 18 might understand how a drug affects their bodies. The main point of the program is education. Once a student understands certain drugs can cause ill health,he will know he should not use them.

    Education is the key to good nutrition as well. If a student eats correctly, he or she will be full of energy which leads to good study habits and good grades. Poor nutrition may cause the need for more sleep and poor concentration. Proper food is similar to the proper use of drugs. Both allow a healthy body to grow while misuse of them prevents a person from developing normally.