“主-謂-賓”、“主-系-表”是英語的基本句型，主語領先句也是用得最多的句型。寫作中為避免形式單一，當句子可以用主語開頭，同時又可以其它結構開頭時，不妨變換一下。
三年級英語作文大全經典范文一：
夏天
In the summer,the days are longer and the nights are shouter.It's very hot.People like to go swimming.I like swimming very much.So I often go to the swimming poll in the summer .And I can swim very well.
In the summer the trees and leaves are green.Flowers are open too.People don't like to go outside.They want to stay at home.Because in the room.It's very cool.
In the summer.People like to eat ice-cream.So there are many kinds of ice-cream.
I like swimming and I like eat ice-cream.So I like summer too.
三年級英語作文大全經典范文二：
夏天的夜晚
Summer night watching the sky and saw the moon climb the trees, the moon from the Earth's curved, like a boat into the round.
The sky from blue to black, the little stars climb the highest trees, and they smiled to me, blinked, lamb also went back to the laps. Presented by the green wall of trees in black, the Grand Canal echoing rumble of vehicles on the road, and occasionally still hear the dog barking sound.
三年級英語作文大全經典范文三：
I Hate Summer
In summer, the weather is hot, the air is humid, and the wind doesn't blow at all.
In summer, everything seems tired--except the mosquito and the fly. They are everywhere. They bring diseases to people. No one likes to walk or work under the summer sun. Because the wicked sun will burn your skin. So the hot summer confines you to your room. Hot weather makes me drowsy and I can't study effectively.
I hate summer. I wish it would go away quickly.
三年級英語作文大全經典范文四：
冬天
The weather in winter is a set of all the phenomena in a given atmosphere at a given time. It also includes interactions with the hydrosphere.
冬天的氣候屬于所有氣象現象中的一種，是一定時期內大氣層的現象。它同樣包括水圈的相互作用。
The term usually refers to the activity of these phenomena over short periods (hours or days)， as opposed to the term climate, which refers to the average atmospheric conditions over longer periods of time. When used without qualification, weather" is understood to be the weather of Earth.
這個詞通常指的是這些現象在短時間內(數小時或數天)的活動，而不是長期的氣候，這是指在較長時間內的平均大氣條件。使用時沒有資格，天氣“被理解為地球的天氣。