英语如何保持睡眠质量作文【一】
新课改提倡自主学习，合作学习，探究学习，但并非所有的内容都要合作学习，应该注意合理的选择。1．对于一些规律性强，涵盖面广，迁移和应用范围大的定理、公式和一些数学思想方法，可以开展合作学习。 2．选择具有挑战性的问题。有些问题对于个人而言较难独立完成，但又是在学生力所能及的范围内，这样的问题学生会产生强烈的合作探索的愿望，在合作中大家共同分析问题、相互交流，教师作适当的指导，使得问题变得越来越清晰，这样相对于个人独立解决问题变得容易且深刻。例如：在讲授完《平行四边形的判定》后，出示这样一道例题：已知四边形ABCD，在以下条件下：1．∠A=∠C，2．∠B=∠D，3．AB//CD，4．AB=CD，5．AC//BD， 6．AC//BD 中任选二个条件，问哪些能得出四边形ABCD是平行四边形？哪些不能？并举反例说明。本例若让学生独立完成很有可能考虑不全而丢失一些结论，这时让学生互相讨论、交流、猜想、论证，可使学生在探究过程中积极参与，并能相互促进，共同提高，大大了提高学习的效果。合作学习旨在活跃学生思维，拓展思维强度，使学生能从那些与自己不同的观点和方法中得到启发，对问题的理解更加丰富和全面，从而促进思维向广度和深度发展，切实提高课堂教学效率。
诚然合作是一种品质，需要教师耐心地培养和长期地训练；合作学习是一种形式，需要教师优质地组织和高效的实施。惟有这样，才能使课堂呈现出真正意义下的合作学习，才能使课堂焕发出生命的活力。更加有效率的提高教学质量。
英语如何保持睡眠质量作文【二】
How to prevent the H7N9?
As is well known,the A flu is spreading throught our country. However, if we negnect it, the deadly H7N9 may cause more infectors,or even more deaths. So what is the most important is that we should take some effective measures to prevent it.They can be listed as follows.
Firstly,it is necessary for you to realize the Avian flu can be prevented if you develop good living habits. For example,you shouldn’t forget to wash your hands before meals.Besides,don’t spit everywhere and try to cover your mouth or nose with paper or hankerchiefs when you have to cough or sneeze.What’s more, remember to wear the mouth-cover if you have to go to the public places, such as the crowded cinemas,supermarkets, buses,where the A flu may spread easily.
Secondly,of course, taking exercise more often and taking good sleep to build your body are wise choices for you to reduce the risk of being infected.
Last but not the least, if you are unlucky to be infected with the slight flu cold, try to stay at home,and take some medicine. Do pay attention to your daily body temperature. If you have a high fever, go to the hospital without delay for further treatment. Make sure you are not expected to come back to school before the cold or flu is cured.
Only by doing like this can you prevent or defeat the A flu in the end.
