Linda is going skateboarding.(用going shopping改为选择疑问句）

Jason's grandmother agreed to let him try skateboarding unless he observed some rules.
Jason's grandmother agreed to let him try skateboarding _____（unless） he observed some rules.
Unless 不是用在否定句吗,这种用法有错吗?

英语翻译
W:David,we all know you took up skateboarding at ten.But did your parents support you?
M:Yeah,my parents even let me skate in the house.W:Did they?
M:Yeah,they were pretty cool.W:How about your school work?

有关频度副词
He usualy goes skateboarding on weekends
上面的句子,有usualy（频度副词）为什么后面的 go skateboard 要用“ing"形式呢?

对划线部分提问
1.we go skateboarding on weekends.（go skateboarding ）
2.she often goes to the movies.(goes to the movies)
3.I surf the Internet every day.(every day)
4.My favorite TV program is Sports World.（Sports World）

My sister is good _______ skateboarding. And she swims well, too. A．for B．at C．with D．in

----_______do you go skateboarding? ----Twice a week A．Howsoon B．Howfar C．Howoften D．Howlong

He sometimes goes skateboarding on weekends.(改否定句)
变否定句时,需不需要把 sometimes 改一下或去掉
改成He doesn't sometimes go skateboarding on weekends.感觉不太对

一道简单的英文AP物理题

Peter and Josh are skateboarding in a large semicircular halfpipe.Peter starts out from rest at a height h and collides with Josh standing at the bottom.Peter and Josh have about the same mass.After the collision,which height will Josh reach?Let's neglect friction and consider the following two extreme cases:
The collision is totally inelastic.
h/25
h/16
h/8
h/4
h/2
h
None of the above.




The collision is elastic.
h/25
h/16
h/8
h/4
h/2
h
None of the above.




Later that day,Peter does the same thing with Fred,who is 4 times heavier than Peter.If the collision is totally inelastic,what height does Fred reach?
h/25
h/16
h/8
h/4
h/2
h
None of the above.

We usually go skateboarding once a week
为什么是skateboarding哪?

初一的英语,问几道改错题
这几个都有错
1、We had a lot of funs going skateboarding.
2、Thank you for your help.
3、She is short, straight hair and looks very beautiful.

按要求改变下面英语句子
1.Katrina goes skateboarding twice a week.（改为否定句）
2.Most students at No.1 High School have lunch at school.(改为一般疑问句）
3.Coffee,chocolate and cola are bad for our health.(写同义句）
4.She sleeps seven hours every day.（对seven提问）
5.Many young people watch football matches on TV four or five times a week.（对four or five times a week提问）

英语翻译
滑板的由来英文介绍
Skateboarding doesnt have a certain origin.Nobody truly knows which is it.Some people believe that Skate began on the surfing beaches of California,U.S.A.around the 50s.People say that some surfers put wheels on a piece of wood.This began because of the lack of good waves to surf,and surfers just looked for another sport when this happened.It mainly started like sidewalk surfers?
The design of skateboards was inspired in surfboards,at the beginning they where quite similar,but with the time the design changed because of commodities.The first manufactured skateboards where born in 1965.They were an inch thick,had rubber wheels,and cast iron trucks.
Competitions soon started down the sidewalks between skateboarders,some of this were:Free Style,Slalom,Down Hill,High Jump and finally Long Jump.Some time passed by,and skateboarders started using drainage channels,routes,and some places around buildings.
Vert skating began using swimming pools.The transitions were too vertical and fast,and jumps turned better.
The first Skateparks were built in the U.S.This were the main hang-out places for skaters,soon,pool and Vert skating became the most popular form of skating.Vert skating demanded harder boards,so manufacturers built them wider for more stability and changed the old rubber wheels for polyurethane wheels,which were faster!
Barefoot skating was now forgotten except by a few of the old die-hard "sidewalk surfers".The new skaters figured out that gym shoes had more stability and didn't hurt as bad when you wipe-out.
Early eighties arrived with a dive in skateboarding popularity.Skateparks closed the doors,manufacturers stopped manufacturing and worst of all,skateboard magazines switched over to BMXing and roller-skating.But a few hardcore skaters kept going.Those dedicated skaters advanced skateboarding cy creating their own techniques,writing their own magazines,and building some of there own boards and layouts.
This is when half-pipes arrived.Simpler and cheaper than pools,they could be built by the skater himself.Tricks were used in street skating that,before,had only been used by Vert skaters,Street ollies,slide'n'rolls,and curb grinds( most of which have different names now) are classic as street skaters moves,all of which were made by Vert skaters.Street skating is still probably one of the most popular forms or boarding.Every skater is a street Slater because that's where his roots are from.It's just that some skaters forget a few things along the way.
急．谁能帮我翻译．非常感谢．

roller skating 和 skateboarding 属于skating范畴吗?
小学英语中有这样一段对话：A:Do you like skating?B:Yes.I like roller skating and I am good at it.How about you B:I like skateboarding.A*B:Ha ha We both like skating.

句型转换
1.I usually go skateboarding on weekends.（对划线部分提问）go skateboarding是画线部分
2.They often do some cleaning on weekends.（同上）do some cleaning是画线部分
3.Bob sometimes watch TV on Sunday.（同上）watch TV 是画线部分
4.Tina goes fishing twice a week.（同上） twice a week是画线部分
5.I do some reading every day.（同上） every day是画线部分
6.They surf the Internet four times a month.（同上）four是画线部分
7.Li lei does his homework five times a week.（同上）five times a week是画线部分

一.改同义句
1.I often go skateboarding on sunday.
I often ＿ on sunday .
2.how often do you go shopping
how often do you
3.Do you do exercise every day?
Do you ＿ every day?
4.Most workers have lunch at the factory.
＿ ＿ ＿ ＿ have lunch at the factory.
5.How many hours does he drive every day?
＿ ＿ does he drive every day.
6.He doesn't look the same as his father.
He ＿ ＿ ＿ his father.

Do you like to go_____?__A,skateboard B,to skateboarding C,a skateboarding D,skateboarding

翻译英语文章.
Tony Hawk is crazy about skateboarding. He comes up with new skateboarding tricks(技巧) all the time. In all, he has made up about 100 new tricks.
There are 360° in a circle. So two and one half circles is 900°, Hawks’ dream was a flip(轻抛) two and one half circles in the air. Hawk would only have two seconds(秒) to do these flips. That’s how long he could stay in the air before hitting the ground. Hawk called it the “900”. Hawk worked years getting ready for the “900”. He worked on each part of the trick. Hawk did thousands of “360”flips in the air. He practiced skatboarding hour after hour, day after day. There was no coach telling him what to do. He could decide for himself when to start and when to stop.
At last on June27, 1999, he felt ready to do it. He would try the “900” at the X Games in San Francisco. On his first try, he fell. He fell on his second try, too. Then his third and his fourth tries. But each time he was getting closer.The other skaters stopped their shows to watch. On his eleventh try, he did it. The other skaters jumped with joy. “This is the best day of my life.” Hawk told the crowd.
谢谢!

skateboard的和surf用法 什么时候用go skateboarding?surf什么时候用go surfing,什么时候用三单形式?
skateboard的和surf用法
什么时候用go skateboarding?可以直接用skateboarding吗?
surf什么时候用go surfing,什么时候用三单形式?

要有原因语法点
______ it is to go skateboarding on a sunny day!
A.How funny B.How fun
C.What funny D.What fun
为什么选D而不是A?
I am sick of your complaining.Please keep quiet,______?
A.will you B.won’t you
C.do you D.don’t you
为什么是A不是B?谢
可是我觉得'在阳光明媚的天气里化学是多么可笑啊'也是对的啊