單詞語法是英語學習的基礎，要寫好作文，這兩樣同樣舉足輕重。要想作文的句子寫的高水準，大家就必須要對單詞的掌握足夠熟練，對語法的拿捏要到位準確，下面八大語法結構，大家得認真看看。

　　▶1. 主動句變被動句

　　“英文多被動，漢語多主動”，還需要警惕名詞與動詞之間暗含的“主被動”關系。

　　Eg1: It is said that …據說/相傳

　　Eg2：I suggest that … It is suggested that …

　　Eg3：Effective measures should be taken before things get worse.表建議

　　Eg4: your prompt attention to my enquiry would be highly appreciated. 表感激

　　Eg5：Students should study hard.

　　Students are expected / well-advised to study hard.

　　▶2. 簡單句變從句

　　名詞性從句，含主語從句、賓語從句、表語從句和同位語從句四種;定語從句;狀語從句

　　A. 主語從句：

　　Eg1：What worries many parents is that Internet or computer games may impact kids’ study.

　　Eg2：It is said that an emperor of ancient China discovered Tea 5,000 years ago. (it為形式主語;that從句為真正主語)

　　B.賓語從句：

　　Eg1：Many Americans live on credit, and their quality of life is measured by how much they can borrow, not by how much they can earn.

　　Eg2: I am convinced that it is of great necessity for youngsters to study hard.

　　Eg3：明智的人不為別人的想法所影響。The sensible man is not influenced by what other people think.

　　C. 表語從句：

　　Eg1：That is why China is called the “Kingdom of Bicycles”.

　　Eg3：In team games, practice is what improves our sense of cooperation.

　　D. 同位語從句

　　Eg1：(Martin Luther King) I have a dream that one day this nation will rise up and live out the true meaning of its creed: "We hold these truths to be self-evident, that all men are created equal." (該句中a dream = that 從句，)

　　Eg2：Others hold the different idea that online shopping brings us some problems.

　　E. 含同位語句式

　　A.人 身份

　　Eg. I am convinced that …

　　As a college student, I am convinced that …

　　I, as a college student, am convinced that …

　　B. 物 性質

　　Eg. A strong will brings us power …

　　As a vital quality, a strong will brings us power…

　　A strong will, as a vital quality, brings us power…

　　插入語

　　Eg1：As I see, the causes of this phenomenon are diverse.

　　The causes of this phenomenon, as I see, are diverse.

　　Eg2：All of a sudden, the silence of the lake was broken by a scream.

　　The silence of the lake, all of a sudden, was broken by a scream.

　　Eg3：Even so, others hold a different view.

　　Others, even so, hold a different view.

　　Eg4：Like anything else, automobiles have more than one side. (汽車跟很多其他事物一樣，具有兩面性)

　　Automobiles, like anything else, have more than one side.

　　F. 定語從句：

　　步驟：1)先寫出正確簡單句，確定被修飾成分(中心名詞)

　　2)在中心名詞后加入定從，關系詞who, whose, whom, where, which, when

　　Eg1：Taobao is a particularly popular website. ? Taobao is a particularly popular website, where/in which customers can purchase various goods.

　　Eg2：I will advice my foreign friend to visit Great Wall, where he or she can acquire knowledge of Chinese history.?

　　▶3. it 句式

　　A. 形式主語 it is +被動/形容詞/名詞+that從句/to do …

　　Eg1：It is suggested/ well-advised / supposed / proposed that sb. should (not) do …

　　Eg2：It is essential / necessary / advisable / convenient/ difficult/ hard/ comfortable for sb. (not) to do

　　Eg3：It is essential / necessary that sb. should (not) do …

　　Eg4：It is useless/useful doing sth.

　　B. 形式賓語

　　Eg1：An increasing number of students find it difficult to spell common words correctly.

　　Eg2：An increasing number of parents find it hard to have opportunities to chat with kids, who spend too much time on computers.

　　Eg3：A host of youngsters find it rather boring and hard to understand literature.

　　▶4. 強調句

　　A. 強調謂語：

　　Eg1：I love you. /I do love you. / I did love you.

　　Eg2：Cell phone/ Internet/ computer brings us convenience.

　　Cell phone/ Internet/ computer does bring us convenience.

　　B. 強調句式：It is/was +被強調成分+that/who+句子其他成分。

　　【步驟】

　　a. 先寫出正確的簡單句、并列句或復合句，明確單句的各個成分。

　　b. 在被強調成分(除謂語和補語外)兩邊添加it is/was 和that/who， 其他成分不變，必要時調整順序。

　　【強調句式特征】去掉it is/was…that/who結構，整個句子無冗余或成分殘缺。

　　Eg1：My mother always encourages me not to lose heart when I have difficulties in study.

　　It is my mother who/that always encourages me not to lose heart when I have difficulties in study.

　　It is when I have difficulties in study that my mother always encourages me not to lose heart.

　　Eg2：Parents’ protection does not enable kids to build up adequate ability to face social competition.

　　(強調句式否定形式)It is parents’ protection that does not enable kids to build up adequate ability to face social competition.

　　Eg3：The Internet does not enable some youngsters to spend adequate time in chatting with others face to face.

　　It is the Internet that does not enable some youngsters to spend adequate time in chatting with others face to face.

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