–I feel a little nervous ____ the exam .

题型:选择题

问题:

–I feel a little nervous ____ the exam .

--______. All of the students may feel nervous.

A.take, Don’t worry.

B.taking, Take it easy

C.to take, Don’t be worried

D.took, Come on.

考点:分词不定式动名词
题型:选择题

根据新旧知识的复杂程度,知识学习可分为下位学习、上位学习和并列结合学习三种。其中,()又称类属学习。

题型:选择题

电磁缓冲器是应用于车辆上以提高运行安全性的辅助制动装置,其工作原理是利用电磁阻尼作用减缓车辆的速度。电磁阻尼作用可以借助如下模型讨论:如图所示,将形状相同的两根平行且足够长的铝条固定在光滑斜面上,斜面与水平方向夹角为θ。一质量为m的条形磁铁滑入两铝条间,恰好匀速穿过,穿过时磁铁两端面与两铝条的间距始终保持恒定,其引起电磁感应的效果与磁铁不动,铝条相对磁铁运动相同。磁铁端面是边长为d的正方形,由于磁铁距离铝条很近,磁铁端面正对两铝条区域的磁场均可视为匀强磁场,磁感应强度为B,铝条的高度大于d,电阻率为ρ,为研究问题方便,铝条中只考虑与磁铁正对部分的电阻和磁场,其他部分电阻和磁场可忽略不计,假设磁铁进入铝条间以后,减少的机械能完全转化为铝条的内能,重力加速度为g。

(1)求铝条中与磁铁正对部分的电流I;

(2)若两铝条的宽度均为b,推导磁铁匀速穿过铝条间时速度v的表达式;

(3)在其他条件不变的情况下,仅将两铝条更换为宽度b′>b的铝条,磁铁仍以速度v进入铝条间,试简要分析说明磁铁在铝条间运动时的加速度和速度如何变化。

题型:选择题

阅读理解

     "I didn't hear them call my name." explained Shelley Hennig to Active Teens (AT) as she talked about

that exciting moment on national television when she won the honor of Miss Teen USA 2004."Are you

ready?" is what she heard.Then she said, "I shook my head no, and then they said 'yes' and it was

announced again."

     It was four days after that life changing moment for the seventeenyearold high school student from

Destrehan, Louisiana-she was still on_cloud_nine.

     "I was so shocked! I never believed that it could actually really happen." Present in the audience (观

众) that day were: her mother and father, older brother, her friends, and her dance teacher.

     Understanding why members of her family and her friends would be there, AT asked why her dance

teacher had traveled so far to see her compete (比赛). "She's always been my role model.I've danced

with her since I was six.She's been through so many difficulties and came through them all.I've learned to

get over bad life's experiences and learned how to move on because of her."

      One of those bad life's experiences for Shelley happened three years ago when her brother Brad was killed in a drunk driving accident.He was 18.She found writing helped her get through the rough days.She

said, "I write a lot about my brother.I write a lot, a lot, a lot..."

     As Miss Louisiana Teen, she traveled around the state speaking to teens (青少年) about the dangers

of drinking and driving.In her role as Miss Teen USA, Shelley will continue to speak to youth about safe

driving, in addition to many other things to help the youth.

      When AT asked Miss Teen USA if she had any advice for our readers, she said, "Don't let anyone

change you.Hang out with people that make you feel good about yourself.That way, it is easy to be

yourself."

1. What do the words "on cloud nine" in Paragraph 2 probably mean?

A. frightened  

B. troubled

C. very happy  

D. very angry

2. Shelley takes her dance teacher as a role model mainly because she is________.

A. determined  

B. friendly

C. strict  

D. experienced

3. How many children did the Hennigs have according to the text?

A. 1.  

B. 2.

C. 3.  

D. 4.

4. What did Shelley often do after she became Miss Louisiana Teen?

A. She visited drunken drivers.

B. She gave dance performances.

C. She made speeches on safe driving.

D. She helped other teens with their studies.

题型:选择题

阅读下面的文言文,完成后面题目。

东轩记 

苏辙

余既以罪谪监筠州盐酒税①。未至,大雨。筠水泛溢,蔑南市②,登北岸,败刺史府门。盐酒税治舍俯江之漘③,水患尤甚。既至,敝不可处。乃告于郡,假部使者府以居郡怜其无归也,许之。岁十二月,乃克支其欹斜,补其圮缺,辟听事堂之东为轩,种杉二株,竹百个,以为晏休之所。然盐酒税旧以三吏共事,余至,其二人者适皆罢去,事委于一。昼则坐市区鬻盐、沽酒、税豚鱼,与市人争寻尺以自效;莫归,筋力疲废,辄昏然就睡,不知夜之既旦;旦则复出营职,终不能安于所谓东轩者。每旦莫出入其旁,顾之,

未尝不哑然自笑也。

余昔少年读书,窃尝怪颜子以箪食瓢饮,居于陋巷,人不堪其忧,颜子不改其乐。私以为虽不欲仕,然抱关击柝尚可自养,而不害于学,何至困辱贫窭自苦如此。及来筠州,勤劳盐米之间,无一日之休。虽欲弃尘垢,解羁絷,自放于道德之场,而事每劫④而留之。然后知颜子之所以甘心贫贱,不肯求斗升之禄以自给者,良以其害于学故也。嗟夫!士方其未闻大道,沉酣势利,以玉帛子女自厚,自以为乐矣。及其循理以求道,落其华而收其实,从容自得,不知夫天地之为大与死生之为变,而况其下者乎!故其乐也,足以易穷饿而不怨,虽南面之王不能加之,盖非有德不能任也。余方区区欲磨洗浊污,晞圣贤之万一,自视缺然,而欲庶几颜氏之福,宜其不可得哉?

若夫孔子周行天下,高为鲁司寇,下为乘田委吏,惟其所遇,无所不可。彼盖达者之事,而非学者之所望也。余既以谴来此,虽知桎梏之害而势不得去,独幸岁月之久,世或哀而怜之,使得归伏田里,治先人之敝庐,为环堵之室而居之。然后追求颜氏之乐,怀思东轩,优游以忘其老,然而非所敢望也。

元丰三年十二月初八日,眉山苏辙记。

【注】①监筠州盐酒税—市场管理的小官。②蔑—无,没有。这里指淹没。③漘(chún唇):水边。④劫——佛教名词。梵文kalpa的音译“劫波”的略写。 ⑤环堵:四面为墙,内室皆空者为环堵,泛指简陋

小题1:对下列句子中加点词的解释,不正确的一项是

A.敝不可处:处置、修复

B.刺史府门败:坏,冲坏

C.落其而收其实华:花

D.治先人之庐敝:破旧小题2:下列各组句子中,加点词的意义和用法相同的一组是

A.与市人争寻尺自效夫夷近,则游者众

B.不知夜既旦师道不传也久矣

C.人不堪忧置煴火,覆武

D.良以其害学故也鹏之徙南冥也小题3:下列对原文有关内容的分析和概括,不正确的一项是

A.第一段,记叙开辟“东轩”,坐市区,公务繁忙的全天生活,简明地交代了作者去筠州的原因和“哑然自笑”的无奈心情。

B.第二段,从东轩的简陋日子联想到颜回苦学生活;表达作者对颜回“箪食瓢饮”之乐的不理解,抒发其政治失意后而又急于排遣的旷达心情。

C.第三段,由颜回的安贫乐道,联想到将来“归休田里”,抒发了他“追求颜氏之乐”的超然情怀。

D.全文通过一天坐市忙碌生活的描叙,借题发挥,成功地刻画了一位地位虽卑下而心境尚崇高的贬官形象。小题4:把文中画横线的句子翻译成现代汉语。(10分)

(1)乃告于郡,假部使者府以居,郡怜其无归也,许之。(3分)

(2)嗟夫!士方其未闻大道,沉酣势利,以玉帛子女自厚,自以为乐矣。(4分)

(3)使得归伏田里,治先人之敝庐,为环堵之室而居之(3分)

题型:选择题

Na原子的1s电子能量比H原子的1s电子能量()

A.高

B.低

C.相等

D.符号相反

E.无法比较

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