等质量的镁、铁、铝三种金属分别置于氧气中燃烧，消耗氧气的质量由多到少的顺序是[

某中学七年级学生李芹近来闷闷不乐，于是她给班主任老师写了一封信：

老师您好！在我刚入学时，由于功课太紧，我又不爱说话，所以总是一个人独来独往，没有什么朋友。特别是看到别的同学友好相处时，总觉得自己的人缘不好。现在我越来越感到烦恼，总觉得有许多话憋在心里要对人讲，还常常为一些小事而冲动，为不能控制自己的情绪而烦恼。老师，我该怎么办呢？

如果你是她的班主任，你将怎样开导她？

________________________________________________________________________________________________________________________________________________________________________________________

Everyone can feel stressed out because of too many things happening in your life. Teenagers, however, have    opportunities to get stressed than people in any other age group. Being a teenager is hard.

You are not a children any more, but you are not     , even though you have to deal with some grow-upproblems and made decisions by     . Families can be one of the biggest causes (原因) of stress, such as problems of arguing with      or brothers or sisters. Teenagers also have lots of stress from       , either fromtheir teachers or from their classmates. Some teenagers also feel       about choosing their education after highschool. Getting a place at university can be very difficult and some can't     to go to university. It is hard for  some teenagers to get a job after they graduate. There are so many young people finishing school        not enough jobs for them. Though there is a lot of stress, you can find many ways to      it. Talking to people isone of the best ways to deal with stress. It may sound      , but it is helpful.

小题1:

A．more

B．fewer

C．many

D．better小题2:

A．a baby

B．a teenager

C．an adult

D．a teacher小题3:

A．yourself

B．himself

C．myself

D．ourselves小题4:

A．teachers

B．friends

C．classmates

D．parents小题5:

A．family

B．society

C．school

D．street小题6:

A．relaxed

B．stressed

C．excited

D．interested小题7:

A．remember

B．offer

C．refuse

D．afford小题8:

A．and

B．but

C．or

D．until小题9:

A．agree with

B．talk with

C．look for

D．deal with小题10:

A．simple

B．difficult

C．good

D．important

大米和豆瓣在肥沃的土壤中不能长出幼苗的原因是（   ）

A．没有种皮

B．土壤肥料不足

C．没有胚根

D．没有完整的胚

把下列句子填入横线，排序最恰当的一项是（ ）

高科技与艺术各行其道，怎么会走到一起呢？李政道先生的一席话可谓鞭辟入里：“科学和艺术的共同基础是人类的创造力，她们的关系是与智慧和情感的二元性密切关联的。

             ”

①没有智慧，情感的因素能够达到完美的成果吗？

②伟大科学观念的理解和伟大艺术的美学鉴赏都需要智慧，而随后的感受升华和情感又是分不开的。

③没有情感的因素，我们的智慧能够开创新道路吗？

④艺术和科学事实上是一个硬币的两面。

⑤她们源于人类活动最高尚的部分，都追求着深刻性、普遍性、永恒和富有意义。

A．②①③④⑤

B．②①③⑤④

C．④①②③⑤

D．④②①③⑤

不可用万用表欧姆档直接测量微安表、检流计或标准电池的内阻。