英语：几个词义辨析1.spring-board与platform都表跳板/跳水板,两者有什么区别?2.happy与che

英语：几个词义辨析
1.spring-board与platform都表跳板/跳水板,两者有什么区别?
2.happy与cheerful都表示高兴,两者有什么区别?哪一个表短时间的高兴?
3.(1)a fortunate or lucky time when you can do sth.
(2)a suitable time to do sth.
A.chance B.opportunity
答案第一个是chance ,第二个是opportunity不过我不太理解,两者到底有什么区别呢?这里还有例句：
1.___plays a big part in many board games.
2.We were in Pairs for two days,so we took the ___ of visiting the Louvre.
哪个填chance,哪个填opportunity?
你们解释的都不一样，把我搞晕了，就是第三个问题，我一般把opportunity理解为时机，时机就是很难得的，而你们又说chance是偶然的，又有的说是要自己争取的，到底是哪一个？怎么越说两个越分不开了呢

1.diving platform 跳台
ten-meter platform 10米跳台
five-meter platform 5米跳台
synchronised diving from 10 m platform 双人十米跳台
Men's 10m Platform 男子10米跳台
Women's Diving 10m Platform 女子10米跳台
Women's Diving Synchronized 10m Platform 女子双人10米跳台
Men's Diving Synchronized 10m Platform 男子双人10米跳台
three-meter springboard/3m springboard event 三米跳板
synchronised diving from 3 m springboard 双人三米跳板
Men's Diving Synchronized 3m Springboard 男子双人3米跳板
Women's Diving Synchronized 3m Springboard 女子双人3米跳板
Women's Diving 3m Springboard 女子3米跳板
Men's Diving 3m Springboard 男子3米跳板
这个比较容易记住,因为spring不是有弹簧的意思嘛,board板子,看比赛的时候我们能看到跳板是弹动的.而跳台则不是.
2..happy与cheerful
Collins Cobuild Advanced Learner's English Dictionary解释：
Someone who is cheerful is happy and shows this in their behavior.
They are very cheerful in spite of their colds.
Someone who is happy has feelings of pleasure,usually because sometning nice has happened or because they feel satified with their life.
Marrina was a confident,happy child.
You look cheerful today.What's the good news?你今天看上去很高兴.有什么好事?
但：
你可能不happy,但你仍然可以cheerful.Happy= feeling satisfied or contented.指“由于幸福、满足而感到快乐” Cheerful= tending to smile and laugh“乐观愉快天性的自然流露,包括在不利或令人不快的情况下保持愉快心情”多指表情,行为上的.
固定搭配
wear a happy expression 面带喜色；
look cheerful 面带笑容
He was wearing a happy expression even though he was really worried.即使他很担心,他也总是面带笑容.
3.chance机会,机遇; 侥幸,幸运,运气; 偶然性,偶然事件
opportunity机会,时机,良机
当指事情有可不可能发生的机会时用chance或opportunity都可以.
There is a chance (an opportunity) that may happen.
当指事情发生的可能性高低时用chance或probability,不用opportunity.
There is a high chance (probability) that may happen.
chance 是要自己去争取的机会.opportunity 是有这个机会．看你自己有没有把握住!
1._Chance_plays a big part in many board games.
2.We were in Pairs for two days,so we took the _opportunity_ of visiting the Louvre.
这样回答满意吗?