导入:
第1段:Some people hold the opinion that A is superior to B in many ways. Others, however, argue that B is much better. Personally, I would prefer A because I think A has more advantages.
正文:
第2段:There are many reasons why I prefer A. The main reason is that ... Another reason is that...(赞同A的原因
第3段: Of course, B also has advantages to some extent... (列出1~2个B的优势
结论:
第4段: But if all these factors are considered, A is much better than B. From what has been discussed above, we may finally draw the conclusion that ...(得出结论 オ
导入:
第1段:Recently we’ve had a discussion about whether we should... (导入话题
Our opinions are divided on this topic.(观点有分歧
正文:
第2段:Most of the students are in favour of it.(正方观点
Here are the reasons. First... Second... Finally...(列出2~3个赞成的理由
第3段:However, the others are strongly against it. (反方观点
Their reasons are as follows. In the first place... What’s more... In addition...(列出2~3个反对的理由
结论:
第4段:Personally speaking, the advantages overweigh the disadvantages, for it will do us more harm than good, so I support it.(个人观点 オ
1.看,这些大数含有三级,你会读吗?这些数有什么特点?你能将它们改写成用“亿”作单位的数吗?对于学生举得例子中整亿的数,老师放手让他们自己改写(比较简单),改写后,说一说怎样改写的,应注意什么?
2.不是整亿的数省略亿后面的尾数求近似数,老师也是给学生充足的空间时间,自己尝试做一做。汇报交流时,重点强调,省略亿位后面的尾数关键要看哪一位上的数是否满五?
总之,学生自己能学会的知识,老师绝不包办代替,给学生留有空间,鼓励他们大胆尝试,利用已有的知识和学习方法自主探索,解决新的问题,提高数学能力。
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