题干

科技部副部长王伟中在中国生物科技与产业发展论坛上表示,中国将加速推进农业生物技术,培育转基因动植物新品种。中国将重点支持疾病预防、基因治疗、试管移植等生物医药技术,在工业生物技术方面,则重点发展现代发酵、生物催化等新技术。与此同时,中国还将加速发展生物质能,缓解能源短缺的压力,不断改善生态环境。这说明生命科学技术对于下列哪些方面具有重大作用  (   )

①促进人口与健康    ②农业高新技术    ③生态环境的改善    ④食品和化学工业

A:①③④

B:②③④

C:①②④

D:①②③④

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D

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根据短文内容,从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。

What Teenagers Can Do to Earn More Respect?

    As teenagers continue to grow and develop into young adults, the transition (过渡) into adulthood has begun. With so many physical and emotional changes going on, certain manners are often forgotten and other adult traits are not yet accepted as a way of life. ____ By doing the following things, you will earn more respect.

Contribute to the household

    At the very least, clean up after yourself. As a teenager, you are old enough to clean up after yourself. When you make a mess, clean it up. ____ All chore (杂活) that you do help to reduce the load of the person who did them before. Now that you're old enough and capable, why shouldn't you contribute to the household? ____

Be responsible

    ____ Whether they are basic things, like brushing your teeth or doing your homework, or more involved chores that contribute to the household, simply fulfill your responsibilities on time. When adults know that they can rely on you, their trust and respect for you will increase.

Solve more of your own problem without asking for help

    Instead of taking the easy approach and asking for help, make an effort to solve your problems on your own first. The “easy way” is only easy for you, but it is an extra task for the person from whom you are seeking help. Seek help only after you have made an honest effort to solve your own problems. ____ When you become a good problem solver, you increase your value to the community.

A. Everyone has certain responsibilities.

B. By being aware of these manners and traits, you can manage them sooner.

C. When speaking to a group, speak loud enough.

D. The people doing the chores before will greatly appreciate the help.

E. Depending on the problem, 15 minutes of effort is usually a good guideline.

F. It will make your life more pleasant.

G. This includes, but is not limited to, your dishes and your room.