第六单元第21课有下面两个句子:
1)It looks as if it isn't clean enough to bathe here.看来这海水不够干净,不能在这儿洗澡了。
2)It seems that there is a big waste pipe coming down from the town.看来有一根大废水管从城里一直接到这儿来了。
上述两句分别使用了look和seem常用的两个句型结构。除此之外,我们还学过appear一词,那么这三个表示“看来;似乎”的词常构成哪些句型结构呢?现将它们常用的几个句型结构归纳如下:
一、使用seem和appear的句型:
1.It seems /appears(to sb.)+ that-clause
It seems /appears to me that they are right.我觉得他们似乎是正确的。
It seemed /appeared that she enjoyed the food very much.看来她好像很喜欢吃这种食品。
2.Sb./Sth.seems /appears +to do
He seems /appears to be a musician.他似乎是一个音乐家。
She seemed /appeared to have caught a cold.她好像感冒了。
注:上述两种句型含义基本一样,都可作“看来/似乎是……”,且二者可相互转换。
He seems /appears to have known about the secret.(=It seems /appears that he has known about the secret.)他似乎已知道这个秘密。
3There seems /appears to be
There seems to be no difficulties to bediscussed.看来没有什么难题要讨论了。
There appears to have been a mistake.好像曾有错误。
二、使用look和seem的句型:
1.It looks /seems as if...表示“看起来……;似乎……”。使用该句型应注意的是:若从句表示的是很可能实现的事情,从句谓语用陈述语气;若从句表示的是与事实相反的假设或实现的可能性很小的事情时,则从句谓语要用虚拟语气。
It seems as if he has been at the scene of the crime.看样子他好像曾在犯罪现场。
When a pencil is partly in a glass of water,it looks as if it were broken.如果把一枝铅笔的一部分放入水杯中,它看上去似乎是断了。
2.Sb./Sth.looks /seems like
The building looks like a school.这建筑物看起来像所学校。
It seems like years since I last saw you.自从我上次见到你以来,好像有几年了。
另注:seem,appear和look虽都有“看起来像”的意思,但三者仍有差别。 seem常含有基本接近事实的意义;appear多指从外表判断,一般与事实不符;look则着重指从外表而得到的印象,所得出的判断有可能与事实相符,也有可能与事实不符。