===================语法常识回顾=================
1.ever since 的结构：(作为连词)=since 完成时态---- ever since +主+动词简单过去式
例：I have known him ever since he was a child.
他从小我就认识他了。
这种用法同since 差不多，不过 ever since 比 since 用得少。
再如：We have lived in Shanghai ever since we came to China.(自从我们来到中国之后就住在上海。)
2.以上所说的 ever since 作为连词。
ever since 也可作为副词，解释“此后”（就一直...）
例：1）He fell ill at Christmas and has been ill ever since.
他在圣诞节生病了此后就一直不适。（has + be ill）
2）He left home last year and has been away ever since.
他去年离家走了，此后一直在外面。（has + be away）
3）He fell off his horse a week ago and has been in bed ever since.
一周前他从马背上跌下来，从那以后就一直躺在床上。
4）He went to Turkey in 1950 and has lived there ever since.
他在1950年去土耳其，此后就一直住在那里。
3. has not been able to 这实际上就是 be able to 加上 have 罢了。所谓 be able to 就是“有可能”不是“能”（can）。如果一直，始终没有可能就是has not been able to ,这很简单。
如果 it has not been easy. 就是“那件事一直不是轻而易举的。”完成时态不一定都解释为“已经”，有时要解释为“一直”。
-------------------------VOCABULARY------------------------------
have trouble with sb. 与某人发生了纠纷
return home 不可用 return to home
at night 不可用 at the night
because of 由于
even once 即使是一次
have effect 产生效果
turn ... to 把···变为
===================No Parking!==================
____________________不准停车___________________
Jasper White is one of those rare people who believes in ancient myths. He has just bought a new house in the city, but ever since he moved in, he has had trouble with motorists.
{贾斯珀·怀特是那种少见的相信古代神化的人之一。他在城市里刚买了一套新房，但自从他搬进去以来，他已经同汽车司机闹上了纠纷。}
When he returns home at night, he always finds that someone has parked a car outside his gate.Because of this, he has not been able to get his own car into his garage even once. Jasper has put up "No Parking" signs outside his gate, but these have not had any effect.
{当他晚上回家时，他总是发现有人把一辆汽车停在他的家门口。由于这个原因，他连一次也没能把他自字己的汽车开进车库。贾斯珀已经不止一次地把“不准停车”的牌子挂在门口，但未曾起过任何作用。}
Now he has an ugly stone head over the gate. It is one of the ugliest faces I have ever seen. I asked him what it was and he told me that it was Medusa, the Gorgon. Jasper hopes that she will turn motorists to stone. But none of them has been turned to stone yet!
{现在他把一个丑陋的石头人头像放在大门边，那是我见过的最丑陋的人面像之一。我问他那是什么，他告诉我那是美杜莎，是蛇发女怪。贾斯珀希望这女怪将会把汽车司机们变成石头。可是至今还没有一个人变成石头呢！（美杜莎为蛇发女怪，谁要被她看到，谁就会变成石头，这是希腊神话中的故事。）}