词可分为一般概念的词(general words)和具体概念的词(specific words)。表示一般概念的词含义模糊;表示具体概念的词含义明确，表达准确，生动形象。
二年级优秀英语作文大全范文一：
冬天
I like winter best. I often go skiing on Sundays with my family.
When it snows, everything turns white. There is thick snow on roads,strees,trees and houses. It's a beautiful world! My friends and I like making snowmen. Sometims we paly with snow .
It's very interesting and exciting, And one of the most important reasons is that Spring Festival comes at this time of the year.
二年级优秀英语作文大全范文二：
dogs
I like dogs.Many people like dogs.Dogs and people are friends.Some dogs also do different linds of work.
Dogs are used to keep watch.They tell people when dangeris coming.Some dogs are used to keep people safe.They sre also used to move animals like sheep or goats.
Some dogs are used for different kinds of hunting and some dogs help the police.
二年级优秀英语作文大全范文三：
Animals
I like animals very much. I have a dog, It’s my favourite animal. It’s white, It looks like a snow ball. It has two big eyes and ears. But its nose and mouth are very small. It’s very naughty.
It often stares at my food when I have a meal. When I’m home it follows me all the time.
When I do my homework, it often sits beside quietly, but sometimes runs around me and shouts: wom wom.
I like my dog very much.
二年级优秀英语作文大全范文四：
dogs
The dog is a common canine animal, is a close relative of the wolf. It lives almost 10 years - up to 30 years.
Dogs usually refers to the dogs, also known as dogs, a common canine mammals, is a close relative of the wolf. Often referred to as "human best friend" is also the highest rate of keeping pets.
His life was about ten - more than three decades, in the absence of an accident, the average life span of small dogs to be longer.