题干

我们把研究生命现象和生命活动规律的科学叫做____
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生物学

同类题1

根据短文内容的理解,选择正确答案。   

    When you cough or sneeze, you'd better turn your head away from others and cover your mouth with the full part of your hand. And then, you should say, "Excuse me."

    This seems so simple, but it is surprising how many kids have never been told to do this. Actually, I notice adults all the time who cough and sneeze in public without placing a hand over the mouth. One important thing I point out to the kids is that after they sneeze or cough on their hands, they should wash their hands as soon as possible. If not, they will be passing those germs (细菌) along to everything and everyone they touch.

 

    If you come to a door and someone is following you, hold the door. If the door opens by pulling, pull it open, stand to the side, and allow the other person to pass through first, then you can walk through. If the door opens by pushing, hold the door after you pass through.

    After a few weeks of seeing kids try to get through doors in the school and watching them enter restaurants as the door hit other people, I knew I had to discuss the problem with my students. Teaching them small acts of kindness, such as letting someone else go through a door first as they hold it open, may seem unimportant, but it can go along way toward helping students realize how to be polite and thank others. Once they've been told, they're halfway there.

    When we have to go up moving stairs, we will stand to the right. That will give others who are in a hurry a choice of walking up the left-hand side of the moving stairs. When we are going to enter a lift, the underground, or a doorway, we will wait for others to exit before we enter.

    After college when I moved to London, I was surprised at how polite everyone was in the subways. I was even more touched when I traveled to Japan. In both places, people made efforts to make way for others. On moving stairs, everyone stood to the right and walked to the left. On lifts, everyone would stand over to the side and allow others to exit before they would begin to enter.

 

同类题5

阅读下文,回答问题。

善于舍弃

    ①现代社会充满了各种诱惑,这就需要我们在选择中善于舍弃。

    ②“鱼,我所欲也;熊掌,亦我所欲也。二者不可得兼,舍鱼而取熊掌者也。”鱼和熊掌都能得到,当然是最理想的,但这种可能往往是最小的。一般情况下需要在鱼和熊掌中作出选择,即使仅得到鱼,也是一种成功;如果哪一个都不愿舍弃,盲目地追求鱼和熊掌“二者得兼”,最后什么都没有得到,那才是悲剧。

    ③舍弃需要勇气,也需要智慧。

    ④号称“飞禽之王”的欧洲金雕,一窝只生两只幼鸟。有时由于食物不足,两只幼鸟就会“手足相残”,强壮的一只便把弱小的一只挤出巢穴,摔死在崖下。金雕妈妈面对饿死两只幼鸟,还是保全一只幼鸟的现实,别无选择,只能容忍这种残酷的“舍弃”。东北狼被猎人的铁夹夹住后,面对断腿和丧失生命的两种选择,毅然把被夹的那条腿咬断,然后逃生。东北狼凭着这种痛苦而果断的“舍弃”,保存了生命。

    ⑤世界顶尖级科幻小说作家艾萨克·阿西莫夫,曾从事生物化学研究和教学。在研究和教学中,他发现自己有创作科幻小说的天才,于是他对自己作出了冷静客观的分析:我不大可能成为第一流的科学家,但我可能成为第一流的科幻小说家。阿西莫夫毅然告别了大学课堂和实验室,回到家里,专门从事写作。

    ⑥阿西莫夫这一聪明的舍弃,成就了他一生创作480部科幻著作的辉煌业绩,也为他赢得了世界上最负盛名的科幻小说家的荣誉称号。舍弃有时是痛苦的,但如果不能忍受一时的痛苦,就可能招来终生的痛苦。阿西莫夫当时选择舍弃自己朝夕相处的实验室和讲台,内心无疑是痛苦的,但正是因为他挺住了一时的痛苦,而成就了后来的大业。不作出舍弃,那可能会造成阿西莫夫终生的痛苦和悔恨,也是世界的一个遗憾。阿西莫夫聪明的舍弃,是他本人的幸福,也是读者和世界的幸运。

    ⑦阿西莫夫的事例告诉我们,如果你本来在某些方面没有优势,却一再地坚持,总想将弱势变成优势,就很可能一事无成。舍弃自己的短项,是为了强化自己的长项,从而让自己更接近成功的目标。

    ⑧在人生征途中,有迂回曲折的坎坷,也有峰回路转的机遇。面对挑战和机遇,需要你慎重思考,该舍弃时就舍弃,不能为了一棵小树而放弃了一片森林。