my wife was wearing a hat.可不可以把这句话中的be动词去掉，直接用wear：my wife wore a hat?

My wife was wearing a hat that looked like a lighthouse定语从句~

that引导的是定语从句

你困惑的是look主被动的逻辑用法，look在这里是用主动不用被动的，把句子缩短来看
The hat ——（look）like a lighthouse.
这里look是填主动，而不是被动，因为look在这里是感官动词，感官动词和使役动词是不用被动的

详细的你可以参考 主被动语态的用法
http://baike.baidu.com/link?url=2gKkROMqQQxRcQQPXwGmprTt7fvThuDzkYJ674hi9WGu_aKpdigDVfX2vKfDsFx6sshTQE7uCgmdxeqHsf4E4_

所以，句子是这样的
My wife was wearing a hat looking like a lighthouse,

戴着
我妻子戴着一顶看起来象灯塔一样的帽子

wear 常用于进行时态。 这是新概念英语中的一个句子

【希望帮助到你，若有疑问，可以追问~~~
祝你学习进步，更上一层楼！(*^__^*)】

可以的，但wear常用进行时。如：
I'm wearing a pair glasses.
如果句子中有明确的【一般过去时的时间】，用一般过去时，否则更倾向于用进行时。如
My wife wore a hat yesterday.

可以的，wore用于简单过去式
was wearing 是过去进行时

单句可以，如果有上下文，要结合上下文

---

老边区19326597988： my wife was wearing a hat that looked like a lighthouse. - ？
独孤薇保胎： 这是新概念里的文章,that looked like a lighthouse确实是定语从句,而且其中的that可以换成which.不是作者不用,而是只能用一个,所以他选择了that.

老边区19326597988： My wife was wearing a hat that looked like a lighthouse.My wife was wearing a hat that it looked like a lighthouse.为什么中间要省略it? - ？
独孤薇保胎：[答案] 这是定语从句,that 相当于it,所以后面不用再加it

老边区19326597988： My wife was wearing a hat that looked like a lighthouse定语从句 - ？
独孤薇保胎： that引导的是定语从句 你困惑的是look主被动的逻辑用法,look在这里是用主动不用被动的,把句子缩短来看 The hat ——(look)like a lighthouse.这里look是填主动,而不是被动,因为look在这里是感官动词,感官动词和使役动词是不用被动的 详...

老边区19326597988： 英语完形填空题My wife was shouting at Sindu again - ？
独孤薇保胎： my wife was shouting at sindu again. i threw the paper away and rushed to the scene. my daughter sindu looked 36 . her eyes were wet with tears. in front of her was a bowl37 with bitter melon (苦瓜). sindu particularly hated bitter melon, but my ...

老边区19326597988： You went late - __ - the party yesterday evening,didn't you? Yes,my wife was a little late - _ - the supper. - ？
独孤薇保胎：[选项] A. ,to ,with B. at ,for C. for,with D. ,for ,for

老边区19326597988： 新概念2中31课的,帮忙看下括号中的词,我填的,while my wife(was working)in the kitchen,I(was sitting)in the garden.I(looked)at cars which(was passing)in ... - ？
独孤薇保胎：[答案] cars which 'were passing' a small car 'stopped' 车停下来不需要用作被动语态,除非是车不是开车的人自己要停的. we 'were' at the same school years ago 句尾的years ago指出了时间,所以用一般过去式 we 'had been' great friends,but one day we '...

老边区19326597988： My wife and I were at the race 一般过去时 改成一般现在时 - ？
独孤薇保胎： my wife and i are at the race together

老边区19326597988： 英文儿歌歌词 - ？
独孤薇保胎： 第一首.Sleep,Baby,sleep.your father tends the sheep,your mother shakes the dream land tree,down falls a little dream for thee 第二首.Twinkle Twinkle Little Star (Declan's Prayer) - Declan Galbraith Twinkle twinkle little star, How I wonder what you ...

老边区19326597988： 新概念英语 改错题 My wife and I am watch TV now. I enjoy listen to the radio very much. - ？
独孤薇保胎： My wife and I am watch TV now. I enjoy listen to the radio very much.enjoy后接listening Sam was in Denmark in July .in换成 In the way home, Jane told us a joke. In 换成on He often comes to see me,but today,he didn't comes. 后面的comes 换成come 原型.

老边区19326597988： My wife was delighted that things had returned to normal once morethings had returned to normal once more做什么成分?句子结构是被动语态吗?为什么 - ？
独孤薇保胎：[答案] 宾语. 不是被动语态.delighted ,形容词 意思是高兴的. be delighted that.THAT后面接她高兴些什么