题目

学习物理除了知识的学习外，还要了解物理学家对物理规律的发现，领悟并掌握处理物理问题的思想方法．关于以上两点下列叙述正确的是( )A. 理想化模型是把实际问题理想化，略去次要因素，例如质点、位移是理想化模型B. 速度是运用比值定义的物理量，由可知，v与x成正比，v与t成反比C. 加速度是运用比值定义的物理量，定义式为a＝，但a与Δv、Δt无直接关系D. 在不需要考虑物体的大小和形状时，用点来代替物体的方法叫微元法 When we are learning new words and expressions, not only should we simply memorize these new words, _______ it is also better to make at least two sentences for each new word to remember them. You had better learn about ten new words every day in this way. I believe it will help you remember new words _______ longer.On the other hand, learn new words by practicing pronunciation and spelling. As we know, the letter A has different pronunciations. Some read /e/, and some read //, such as the pronunciation of /e/ in “name”, but the pronunciation of // in “cat”. Choose some words _______ “a” and spell them over and over again.Reading aloud is also one of _______ ways to remember new words. It is both interesting and helpful to _______ grammar knowledge.Listening is a good way to remember new words, too. When someone _______ in English, listen to the meaning of these new words. When you _______ a new word, you can ignore (忽略）_______ and keep listening. Once you stop and think about the new word, you will miss _______else. Always remember this ________, “Nothing is difficult to the man who will try. ”【1】A.orB.butC.andD.as【2】A.muchB.manyC.moreD.little【3】A.inB.atC.withD.on【4】A.goodB.betterC.bestD.the best【5】A.readB.changeC.masterD.forget【6】A.is talkingB.are talkingC.talksD.talked【7】A.listenB.seeC.listen toD.hear【8】A.itB.themC.thisD.that【9】A.nothingB.somethingC.anyD.some【10】A.sayB.saysC.saidD.saying