题干

Let's ____(do) it again.

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答案(点此获取答案解析)

do

同类题2

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。

    Taking a math test can be pretty stressful. Even if you know the material, you can still get the problem wrong. Knowing how to go through your math test and check your work can save you from handing in a test full of mistakes that can be avoided. ____

Write it out

    You can also check a math problem by writing everything out on paper. ____ Writing out math problems reduces your chances of missing anything to the lowest possible level, which is a common cause of incorrect answers.

____

    Make sure your answers work by doing the opposite procedure of what your problem calls for, including the answer you got the first time around. In other words, you would use the opposite of this addition problem—subtraction (减法)—to determine whether or not your answer is the correct one.

Plugging in

    You may find that a variable isn't good enough or have a problem where you have to solve for a variable (变量). ____ This is the only real way to assure yourself that the answer you've found is correct.

Check for a reasonable answer

    ____ For example, if you get an answer in the millions and you know it should be in the thousands, you've likely misplaced a point. Go back through the work on your paper to make sure all of your formulas and calculations are correct. If everything looks okay, do the problem again and compare the result of the second try to what you've got on the first try.

A. Do the opposite

B. Correct the answers

C. Plug the variable in the equation (方程) to check it out.

D. Therefore you'll improve your grades, as well as your math skills.

E. It also helps you to figure out everything after you have already finished the test.

F. If the result of a problem seems to make no sense, it indicates that the answer is incorrect.

G. This helps you to know what information you have and what information you need to solve.

同类题4

阅读下面材料,完成后面小题。

童年都去哪儿了

【案例回放】

       ①某电视台一档少儿才艺节目,让一位5岁的小女孩穿上“性感露背装”学扭臀。接着主持人问小女孩:“你在幼儿园里有没有交上男朋友啊?”……

       ②在一则儿童食品电视广告中,一个小男孩学着古代皇帝的样子,一边背着手踱步,一边用极其成人化的口吻说:“吃方块酥,享皇帝福,我是小皇帝!”

       ③某市新华书店,一本名为《令人战栗的格林童话》的书堂而皇之地摆在儿童读物柜台,其中充斥着暴力、色情、惊悚等不堪入目的内容。

【网友声音】

       @小黄蜂:在这个泛娱乐时代,儿童难以摆脱“被看”的命运,成为大众逗乐的工具。大众有一种畸形的癖好,他们愿意观看儿童对成人的戏仿,这种不伦不类的娱乐性场面让他们感到满足和得意。

       @胡桃夹子:儿童电视广告对儿童的负面危害不仅仅是让孩子在语言使用上出现早熟,更加严重的危害是使孩子由于语言的影响进一步发展成为思想早熟,形成真正意义上的“小大人”。

       @没枝叶的树:许多家长高呼“不能让孩子输在起跑线上”,在这种急躁的拔苗助长的心态里,儿童的天性被摧折了,发展的基础断裂了,像被拔过苗的庄稼那样逐步枯萎。

【校园童谣】

       ①作业最多的人是我,书包最重的人是我,每天起得最早的睡得最晚的,是我是我还是我……

       ②找点空闲,找点时间,找个朋友,到校园转转。带上球鞋,戴上护腕,套上队服,到球场玩玩……

【调查统计】

儿童对电视广告的反应调查

求购行为

无明显反应

模仿广告词

不相信

其他

19.6%

27.5%

49.4%

11.4%

8%

【专家看法】

       陈沉(中国海洋大学文学与新闻传播学院):真人秀节目或者娱乐节目并不是要排斥儿童的参与,而应该确保正确的参与形式和评价标准,越不符合儿童身份年龄的表演内容,越是能得到肯定和追捧这一标准应该被终止。

       陈志雄(心理咨询师):儿童成人化倾向同时受到家庭、学校以及社会的影响。人的健康心理成长是遵循一定的发展规律的,如果直接跳开某个成长阶段的活动和经历,很可能给孩子的心智带来不可逆转的空缺与伤害。

       姚倩(广西大学新闻传播学院):网络中大量的色情、暴力、恐怖的内容,使儿童仅仅坐在电脑前便打开了进入成人世界的大门,在情感经历上便越来越早熟,缩短了由儿童走向成人化的时间。

       张雪梅(未成年人保护专业委员会秘书长):在成人化的网络游戏这个虚拟的世界里,孩子们互相打杀,可能会把虚拟世界里的一些仇恨带到生活中来,实施一些报复行为或者说伤害行为,最终导致违法犯罪这种现象的发生。

       尼尔•波兹曼(《娱乐至死》的作者):正是现代传媒影响才使童年过早“消逝”。儿童的天真无邪、可塑性和好奇心逐渐退化,然后扭曲成“伪成人”,实在令人痛心和尴尬。