Ranon好看吗当然好看么。。 超好看！
tom ran 50 meters on s____d____
乘以时间等路程,总路程是360米,前半段时间的速度是每秒5米,后半每秒4米.由于Tom跑每秒5米和每秒4米都总时间的一半,设总时间的一半为x,故前段路程等于5x（速以时间）,后段等于4x（注：5x不等于一半路程,4x也是）.两段路程合起来就是总路程,5x 4x = 360.然后合并同类项和解方程,得x = 40.问题求的是后半段路程所用时间,路程的一半是180米.Tom最后用每秒4米的速度跑了4 × 40 = 160米,还有20米是用每秒5米的速度跑的,而这段一共是用了20 ÷ 5 = 4秒.这4秒加上后面换了速度跑的40秒,得出答案Tom一共用了44秒去跑后半段180米的路程.
---He ran into a tree on his way home. ----I s
D
When I first learned to write on English, I ran into many difficulties. The ma...
1. on-in 2. 去in 3. anything-everything 4. my-a 5. should
6. talk-talking 7. me-myself 8. showed后it 9. reads-read 10. word-words
I ran into Alice, who was on her way to see how I was getting along.
on one`s way to在某人去。。的路上
the,he,ran,playgrouund,on连词成句
He ran on the playground .
.
tom ran 50 meters on s____d____
乘以时间等路程,总路程是360米,前半段时间的速度是每秒5米,后半每秒4米.由于Tom跑每秒5米和每秒4米都总时间的一半,设总时间的一半为x,故前段路程等于5x（速以时间）,后段等于4x（注：5x不等于一半路程,4x也是）.两段路程合起来就是总路程,5x 4x = 360.然后合并同类项和解方程,得x = 40.问题求的是后半段路程所用时间,路程的一半是180米.Tom最后用每秒4米的速度跑了4 × 40 = 160米,还有20米是用每秒5米的速度跑的,而这段一共是用了20 ÷ 5 = 4秒.这4秒加上后面换了速度跑的40秒,得出答案Tom一共用了44秒去跑后半段180米的路程.
---He ran into a tree on his way home. ----I s
D
When I first learned to write on English, I ran into many difficulties. The ma...
1. on-in 2. 去in 3. anything-everything 4. my-a 5. should
6. talk-talking 7. me-myself 8. showed后it 9. reads-read 10. word-words
I ran into Alice, who was on her way to see how I was getting along.
on one`s way to在某人去。。的路上
the,he,ran,playgrouund,on连词成句
He ran on the playground .
.