一篇短文的段落一般分为引导段、主题段和结尾段。每段的主题句非常重要，是作者思维的起点，切题的准绳，阐述的对象。看到段落主题句，读者大致了解段落要阐述的内容。段落主题句通常是一个语法结构完整、内容概括、用词简洁明了的单句。通常将段落主题句置于段落的开头，可使文章结构更清晰，有说服力。
优秀中考英语作文范文一：
My Best Friend
Everybody has a best friend that they can share everything with.i also have a best friend.we met in school,and we're in the same grade.
My best friend is a good student because he is very hardworking.i learn a lot from him.he helps me with math;i help him with english.we always help each other.besides that,he's honest and reliable.i trust him completely and we share secrets all the time.my best friend is also loyal and brave.once when a bully teased me,he came to my rescue right away.he always remembers my birthday and he is fun to be with.he tells funny jokes and stories.he always makes me laugh.finally,he is a very good listener and he knows how to cheer me up when i'm down.
My best friend is really one of a kind.i hope we'll stay friends forever.
优秀中考英语作文范文二：
My Hobbies
Everyone has different hobbies.some people like to paint and others like to play basketball.i have many hobbies because i like to do many things.let me share a few of my hobbies with you.
To begin with,i really lie games,both indoor and outdoor.i like collecting cards and playing card games with my friends.but my favorite games are vidio games.i could play them all day long.on the other hand,i also like being outside in the fresh air and sunshine,so i play a lot of sports.i like riding and rollerblading very much,but swimming is my favorite sport.in addition,i like to draw pictures and read comics,but please don't tell my parents because they don't approve.listening to music and singing songs are things i enjoy too,and i'm learning how to play an instument--the guitar.finally,i enjoy learning english because i like speaking with foreigners and i like watching disney cartoons.
As you can see,my hobbies keep me busy and excited.i'm always looking for new things to do!
优秀中考英语作文范文三：
An Accident
One sunny afternoon, when i was merrily riding home, i heard "help! help!". i rode to the riverside and found a boy of about five in the river struggling.
I jumped into the water, swam to the boy and dragged him to the river bank. the boy said he was trying to catch a fish near the river bank and carelessly fell into the water. i asked him where his home was and sent him home. "thank you very much!" the boy's parents said, when i left his home. though i got home late that afternoon, i was very happy.
优秀中考英语作文范文四：
My father is a gentle man
My father has small eyes,wear a pair of glasses,looking more gently,the daddy's hair are not many, he said "the intelligent head does not grow hair"，daddy does the management, but daddy usually ever not talk bureaucratically to others, therefore his personal connection is specially good,is the same as me.daddy speaks always extremely temperately,never say hit the person,curse at people are also few,calculated scolded people not to be big, although sometimes also can be angry for a longtime,but just only about one day,could no surpass in one day-long.
He usually educate me that the person must to be honestly,friendly to other,and working diligently.this is my father, i love him forever.