去帮我看看这英语翻译我这暑假预习,很多不明白请多多包涵1.do exercise = exercise 吗2.how often . 回答用 once /twice/three time a week ,怎么once /twice表示1/2,为什么3用three time a week 表示?3.He tries riding the bike himself. bike himself什么意思4.Having too much sugar and fat is not a good eating habit. Eating more fruits can let us keep in good health. 这开头为什么加ing.5.very active /very often 各什么意思.
问题描述：
去帮我看看这英语翻译
我这暑假预习,很多不明白请多多包涵
1.do exercise = exercise 吗
2.how often . 回答用 once /twice/three time a week ,怎么once /twice表示1/2,为什么3用three time a week 表示?
3.He tries riding the bike himself. bike himself什么意思
4.Having too much sugar and fat is not a good eating habit.
Eating more fruits can let us keep in good health.
这开头为什么加ing.
5.very active /very often 各什么意思.
答
1是做锻炼的意思
2斜杠表示‘或者'即一星期一次或两次或三次
3一般一次两次用once,twice但三次或以上就没有特殊词了,应是three times,注意单复数.
4himself是补语（补充说明）,他自己的意思
5动词分为do to do doing三种形式,having表示主动的意思.
6非常活跃,非常频繁.