一、“There be”結構
考生病句：
1、There are many people like to go to the movies.
2、There are different kinds of vegetables can be bought on the market by people.
正確表達：
1、There are many people who like to go to the movies.
2、There are different kinds of vegetables that people can buy on the market.
這兩個例句錯誤比較有普遍性，因爲在歷次考試中有不少考生不能正確運用there be這一最常用句式，怎樣寫好英語句子。在這種結構中，there是引導詞，沒有實際意義。be在句中作謂語，有時態和數變化。
例如：
1、There was no school in the village at that time. (there was not a school...)
注意：在否定句中，否定詞用no，也可用not a或not any。not a後接單數名詞，not a 後接複數名詞，no後面名詞單複數都可以。
2、There is not a moment to be lost.
3、There are many people rushing into the cities every year.
4、There are many things we can do to prevent traffic accidents.
5、There is no use holding back the wheel of history.
從以上例句還可看出，句中主語後面可接多種修飾語，如介詞短語、不定式短語、定語從句、分詞短語等等。這無疑使該結構增加了表現力，使句子表達內容更加豐富。 在運用這一結構時，考生最容易犯錯誤是在there be之後又用了一個動詞作謂語，使句子結構出現嚴重錯誤。這裏列舉考生典型錯誤均屬這種情況，對此我們在寫作中要格外注意，其它英語寫作《怎樣寫好英語句子》。
二、比較結構
考生病句：
1、Comparing with the bike, the car runs much faster.
2、The climate in Walton is colder than other cities.
正確表達：
1、Compared with the bike, the car runs much faster.
2、The climate in Walton is colder than that of other cities.
評議與分析：許多考生在作文中用compare或than表示比較，但相當多表達有誤。
在例1中，對兩個事物進行比較句式爲Compared with A, B...,只能用compare過去分詞，不能用現在分詞，因爲B是分詞邏輯主語，只能被比較。在例2中，考生誤將“天氣”與“城市”進行比較，而二者沒有可比性，只有將後者改爲“其他城市天氣”才符合邏輯，很顯然，考生錯誤是受了漢語表達習慣影響。比較結構是常用結構，正確地使用這一結構可以使文章句式增加變化，有利於提高寫作成績。一般說來，考生若能恰當、正確地運用這一結構，其寫作成績應在5分以上。
下面是比較結構一些常用表達方法。
1、同級比較
1）、In 1998 we produced as many cars as we did in the previous five years.
2）、We have accomplished as much in the past three years as would have taken ten years in the past.
2、比較級
1）、Children now enjoy better medical treatment than before.
2）、We can live longer without food than we can (live ) without water.