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在线咨询03月
17
阅读理解 The Science of the Future Until recently, the “science of the future” was supposed to be electronics an...
2016-03-17 09:56
补全短文 David Guterson and his wife teach their three children at home. Guterson says that his children learn very d...
2016-03-17 09:55
阅读理解 The world is not only hungry; it is also thirsty for water. This may seem strange to you, since nearly 75% of...
2016-03-17 09:54
词汇选项 Developing countries bear the brunt of the problem due to the presence of a wide ______ of foodborne disease...
2016-03-17 09:54
补全短文 We can now watch electricity as it flows through even the tiniest circuits. By scanning(扫描) the magnetic fiel...
2016-03-17 09:48
补全短文 Mexico's current lack of funds is also partly due to oil. The country has rich oil fields and a few years ago...
2016-03-17 09:47
阅读理解 Common Problems, Common Solutions The chances are that you made up your mind about smoking a long time ...
2016-03-17 09:46
概括大意与完成句子 Local Newspaper in Britain (1)Britain has a large circulation (发行量) of national newspapers. The Da...
2016-03-17 09:45
概括大意与完成句子 Car Crime A million motorists leave their cars filled up with petrol and with the keys in the igni...
2016-03-17 09:44
概括大意与完成句子 Stanford University Stanford University, famous as one of northern California’s several institutio...
2016-03-17 09:44
概括大意与完成句子 Caring for the Old (1)The old do not have to look exclusively to the past. Relieved of some of lif...
2016-03-17 09:43
概括大意与完成句子 Population The world's population continues to grow. There now are about 5 billion of us on earth....
2016-03-17 09:43
概括大意与完成句子 Successful Language Learners Some people seem to have a knack for learning languages. They can pic...
2016-03-17 09:43
概括大意与完成句子 Car Crime A million motorists leave their cars filled up with petrol and with the keys in the ig...
2016-03-17 09:42
03月
16
一、干燥剂。根据干燥剂的性质可将干燥剂分为酸性干燥剂、碱性干燥剂和中性干燥剂等。 1、酸性干燥剂 (1)浓硫酸干燥剂。可用浓硫酸干燥中性气体，如氧气、氢气、氮气、一氧化碳及甲烷等;还可以用来干燥非...
2016-03-16 16:04
近年来各地的高考试题命题和答案都充分体现了“题在书外，理在书中”的特点，充分体现了新课改的精神，具有研究性，充满体验性，突出了能力立意。 一、处理好“死”与“活”的关系 1.“死”指的是基本概念和...
2016-03-16 16:04
今年全国高考理综试题突出了学科的特点，在注重基础知识考查的同时，更加强了对能力的考查。试题设计稳中见新，有一定的难度。物理科对学生的思维能力要求较高，学好物理重在理解。 经过几年的综合考试，笔者有这样一个体会：...
2016-03-16 16:04
关于2016年高考物理的复习策略问题，是很多理科生关心的问题，下面是贾保成老师解答的多数高三理科生关注的问题。 问题一：如何对待外省...
2016-03-16 16:03
一、非金属单质(F2 ，Cl2 、 O2 、 S、 N2 、 P 、 C 、 Si) 1.氧化性： F2 H2 === 2HF F2 Xe(过量) === XeF2 2F2(过量) Xe ==...
2016-03-16 16:03
近些年，物理大题命题知识点稳定，主要集中在牛顿定律的整体法和隔离法、圆周运动、万有力引力定律、动量和能量结合、纯能量问题、带电粒子在电场、磁场或组合场中的运动、导体棒的切割问题等主干知识上。所以，必须对这类问题进行...
2016-03-16 16:03
