题干

一场大雨过后,蚯蚓会爬到地面,请你帮助分析其中原 因(   )   

A:利于呼吸

B:寻找食物

C:产卵

D:地面上凉爽

上一题 下一题 0.0难度 选择题 更新时间:2013-06-08 09:57:03

答案(点此获取答案解析)

A

同类题1

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,并在答题卡上将该项涂黑。选项中有两项为多余选项。

                                                                                      Pronunciation Tips

           These English pronunciation tips will help you get the most out of your Pronunciation Power program.

★ ____

    For example, “threw” and “through”, although spelled differently, are pronounced the same. Also, identical(相同的)letters or letter clusters(字母组合) in words do not always produce the same sound. For example, the “ough” in “though” and “through” represents a different sound in each word.____

★ Imagine a sound in your mindbefore you say it.

    Try to visualize(想象))thepositioning of your mouth and face.____

★ Listen to and try to imitate thePronunciation Power instructor.

    In addition to listening for specific sounds, pay attention to pauses, the intonation(语调) of the instructor's voice and patterns of emphasis.____

★ The English language has manydifferent dialects, and words can be pronounced differently.

    It is important, however, that you pronounce words clearly to ensure effective communication.

★ Finally, the Pronunciation Powerprogram is a tool to help you.

    But you must practice what you are learning! Remember that you are teaching your mouth a new way to move. You are building muscles that you do not use in your own language.____Use the program to exercise yourmouth a little bit each day.

a. Read these words over and over againand try to learn them by heart.

b. This can be just as important as the pronunciation of sounds.

c. Learn to practice what you hear, notwhat you see.

d. So you should force yourself to dowhat you really don't like to do.

e. Do not confuse pronunciation of words with their spelling!

f. It is like going to the gym andexercising your body.

g. Think about how you are going to make the sound.

同类题2

阅读下列材料:
材料一 世界格局指的是的是一种相对稳定的国际关系结构。20世纪的世界格局经历了三次大的演变:第一次:一战打破了资本主义的一统天下,出现了社会主义的苏联,形成资本主义大国包围苏联的格局;第二次:二战打破了资本主义对苏联的包围,出现了社会主义阵营,形成了以美苏对抗、以北约和华约两大军事集团对峙为标志的两极格局;第三次:苏联解体,华约解散,两极格局结束,并向多极化方向发展。目前正处在新旧格局复杂交替的过渡时期,即暂时以“一超多强”为特征的多元化格局。
材料二一位历史教师在上课时讲述到:人类刚经历了一场浩劫——第一次世界大战,迎来了十年的安定社会经济取得了巨大的发展,又面临了一场从美国开始的没有硝烟的战争,最后为了结束这场战争美国通过采用罗斯福的方式开创了一个新经济时代,德国以及日本却走上了新的战争之路。
材料三  “二战”部分参战国死亡人数

中国军民苏联军民英国官兵美国官兵德国官兵日本官兵总计
2100万2700万37.5万40.5万1360万274.7万约6500万

根据材料并结合所学知识回答以下问题:
(1)20世纪初形成的新的世界格局是什么?这个格局的实质是什么?
(2)材料二中所指的没有硝烟的战争是什么?美国在罗斯福领导下开创了一个怎样的新经济时代?
(3)材料二中德国走上的这场新的世界战争结束的标志是什么?这场战争胜利的最主要原因是什么?
(4)根据材料三谈谈你的感想?