问题 选择题

化学是以实验为基础自然科学,化学实验操作中必须十分重视安全问题和环境保护问题。下列实验问题处理方法正确的是

A.做氢气还原氧化铜的实验时先加热再通氢气

B.实验结束后将所有的废液倒入下水道排出实验室,以免污染实验室

C.浓硫酸不小心沾到皮肤上,立刻用NaOH溶液洗涤

D.实验室加热制取且排水法收集氧气时先撤导管再撤酒精灯

答案

答案:D

A项做氢气还原氧化铜的实验时先通氢气以排净装置中的空气再加热;B项中实验结束后将所有的废液倒入废液缸,不能到入下水道,应废液中可能有酸液将腐蚀管道;C项先用抹布擦试,后用水冲洗,再用NaHCO3稀溶液冲洗;D项中是为防止倒吸现象

阅读理解与欣赏

阅读下面的文言文,完成下面问题。

  熊鼎,字伯颍,临川人。元末举于乡,长龙溪书院。江西寇乱,鼎结乡兵自守。陈友谅屡胁之,不应。邓愈镇江西,数延见,奇其才,荐之。太祖欲官之,以亲老辞,乃留愈幕府赞军事。母丧除,召至京师,授德清县丞。松江民钱鹤皋反,邻郡大惊,鼎镇之以静。迁起居注,承诏搜括故事可惩戒者,书新宫壁间。舍人耿忠使广信还,奏郡县官违法状,帝遣御史廉之。而时已颁敕书,丞相李善长再谏不纳,鼎偕给事中尹正进曰:“朝廷布大信于四方,复以细故烦御史,失信,且亵威。”帝默然久之,乃不遣物史。洪武改元,新设浙江按察司,以鼎为佥事,分部台、温。台、温自方氏窃据,伪官捍将二百人,暴横甚。鼎尽迁之江、淮间,民始安。平阳知 州梅镒坐赃,辨不已,民数百咸诉知州无罪。鼎将听之,吏白鼎:“释知州,如故出何?”鼎叹曰:“法以诛罪,吾敢畏谴,诛无罪人乎!”释镒,以情闻,报如其奏。宁海民陈德仲支解黎异,异妻屡诉不得直。鼎乃逮德仲,鞫实,立正其罪。是秋,山东初定,设按察司,复以鼎为佥事。鼎至,奏罢不职有司数十辈,列部肃清。鼎欲稽官吏利弊,乃令郡县各置二历,日书所治讼狱钱粟事,一留郡县,一上宪府,递更易,按历钩考之,莫敢隐者。八年,西部朵儿只班率部落内附,改鼎岐宁卫经历。既至,知寇伪降,密疏论之。帝遣使慰劳,赐裘帽,复遣中使赵成召鼎。鼎既行,寇果叛,胁鼎北还。鼎责以大义,骂之,遂与成及知事杜寅俱被杀。(节选自《明史?熊鼎传》)

1.对下列句子中加粗的词的解释,不正确的一项是(     )

A.元末举于乡,龙溪书院——长:执掌

B.江西寇乱,鼎乡兵自守——结:聚合

C.邓愈镇江西,数见——延:招聘

D.乃留愈幕府军事——赞:辅佐

2.以下各组句子中,全部表明熊鼎处事精细求实的一组是(     )

①太祖欲官之,以亲老辞   ②复以细故烦御史    ③吾敢畏谴,诛无罪人乎

④乃逮德仲,鞠实,立正其罪 ⑤按历钩考之,莫敢隐者 ⑥知寇伪降,密疏论之

A.①②⑤

B.①④⑥

C.②③④

D.③⑤⑥

3.下列对原文有关内容的概括和分析,不正确的一项是(     )

A.熊鼎卓有才能,处变不惊。他深受邓愈器重,留在邓手下任职;为母亲守孝后担任德清县丞,其时松江有人叛乱,邻郡惊恐,他冷静地控制了本县局面。

B.熊鼎思虑周详,维护朝廷威信。广信郡县官员违法,皇上已颁发敕令,此时又要查究;熊鼎认为朝廷应当取信天下,不应为小事出尔反尔,皇上这才作罢。

C.熊鼎治政有方,坚持依法办事。分管台、温事务时,他迁走凶恶残暴的官将,百姓方才安定;平阳知州梅镒被诬贪污行贿,他听从民意,依法予以释放。

D.熊鼎面对威逼,表现出凛然正气。朵儿只班率部投靠朝廷,熊鼎察觉其中有诈,不久叛寇果然作乱,并胁迫他北还,他维护正义,责骂叛寇,最终被杀。

4.把文言文阅读材料中划横线的句子翻译成现代汉语。

(1)鼎至,奏罢不职有司数十辈,列部肃清。

译文:_______________________________________________

(2)帝遣使慰劳,赐裘帽,复遣中使赵成召鼎。

译文:_______________________________________________

单项选择题

Are teens and young adults more narcissistic (自恋的) today than in the past That’s the view of a California researcher who studies (1) people.

In her new book, The Narcissism (2) : Living in the Age of Entitlement, psychologist Jean Twenge of San Diego State University and (3) W. Keith Campbell of the University of Georgia say research shows (4) young people today have "narcissistic traits" than in (5) generations. Such traits, Twenge says, include a very. (6) and inflated sense of self, which is (7) by a preoccupation with MySpace, Facebook and YouTube.

"We’ve been on this self-admiration cultural (8) for a long time," Twenge says. (9) Twenge’s take on today’s young people isn’t universal. Studies by other researchers, including Canadian (10) Dr. Kali of the University of Western Ontario, have used the same data but found (11) results. "They put a different (12) on it," Kali says.

Twenge’s studies have found more narcissistic traits and a (13) rate of increase among college students today, but Kali found that students’ narcissism was (14) greater in 2006 than in 1976. Twenge’s most recent paper studied the same data as Kali--more than 20 000 college students from 2002 to 2007. (15) researchers used the Narcissistic Personality Inventory to measure narcissistic (16) and findings by both have been (17) in peerreviewed journals.

Twenge’s book (18) just a month after The Mirror Effect : How Celebrity Narcissism Is Seducing America, a book co-written by behavioral (19) Drew Pinsky, (20) suggested that a celebrity-obsessed culture is causing more narcissism.

6()

A.passive

B.rational

C.negative

D.positive