采用不同的句子開頭是使句子多樣化的手段之一。我們造句及寫作的時候不應該總是用 “subject-verb-object” 的結構順序，而應該盡量用不同的方式展開一個句子。不同的句子開頭既可以美化句子，同時也能使句子與句子之間自然過度，銜接自然，以免過于依賴過渡詞。在 TWE 考試中主考官對句子結構的多樣化也非常的重視，看看常見的句子開頭的方法！
句子的開頭可以采用以下的任何一種方式：
1 用副詞開頭，常見的情形有：
(1)副詞修飾全句
Luckily,he didn’t know my phone number;otherwise,he would bother me.
Incredibly,Helena got straight A in her school report this semester.
Interestingly,cats and dogs can hardly get along well in a house.
修飾全句常用的副詞有：
obviously undoubtedly
apparetly fortunately
clearly unfortunately
incredibly luckily
unluckily surprisingly
frighteningly
這些副詞大多數表示說話人對全句的看法，在意思上相等與 “It is ... 形容詞 that ...” 。
eg:
Obviously,he is nervous about the test.
=It is obvious that he is nervous about the test.
Unfortunately,he tripped over and fell in the mud.
=It is unfortunate that he tripped over and fell in the mud.(2) 強調副詞
Hurriedly, the man drew me a scratch map to show me the direction.
Dangerously, the drunkard sped down the street.
Slowly and gently, snowflakes were drifting down from the sky.
(3) 副詞表示某一地域或某一領域
Geographically, Canada is the biggest country in the world.
Financially, she is independent, but emotionally she is dependent.
2. 用插入語開頭，表示說話人的態度，或使句子的意思更加準確：
Strangely enough, Jennifer does not enjoy sunshine and beach.
Generally speaking, winter in Vancouver is gloomy.
類似的插入語有：
no wonder no doubt
in other words in my opinion
in conclusion in fact
as a matter of fact
3. 用形容詞、并列形容詞或形容詞短語開頭，修飾句子的主語，表示主語的特征或狀態：
Frantic, the young mother rushed out the door with the baby in her arms.
Tasty and crisp,potato chip are a favorite snack for both children and adults.
Happy at his good marks at school, the little boy skipped on his way home.
Desperete and hopeless, the poor man committed suicide.
4. 用分詞、分詞短語開頭：
(a) 修飾句子主語，表示主語所處的狀態或主語同時進行的另一個較謂語動詞次要的動作：
Scared, the girl moved timidly and cautiously into the dark room.( 狀態）
Cgased by my dear pet cat, the mouse dashed into a snall hole.( 狀態 )
Spoiled by his parents, the naughty boy always insists on things he wants.( 狀態）
Puffing and hugging, he finished his run.( 另一動作）
Looking at herself in the mirror, she fingered her silk scarf on her shoulder.( 另一動作）
(b) 修飾謂語動詞，表示原因、時間等
Lying down on the couch, he felt much relaxed.( 時間）
Feeling bored, she turned on the TV and switched from channel to channel.( 原因）
Wanting to find out the business hour,she called the store.( 原因）
Having completed the form, dhe mailed it out immediately.( 時間）
5. 用介詞短語開頭，表示句子謂語動詞發生的時間、地點、方式、原因、條件等：
On seeing him approach, the girl immediately turned her face to a shop window pretending to look at something there.( 時間）
Around the corner, a crowd gathered.( 地點）
Unlike his father, Peter touches neither cigarettes nor alcohol.( 方式）
Due to the limit of seats, he was not accepted.( 原因）
In case of fire, use the stairways.( 條件）
6. 動詞不定式開頭，強調謂語動詞動作的目的：
To celebrate the arrival of the Millennium, we held a grand party in the hotel.
To show my trust om him, I deposited $ 10,000 into his bank account.
7. 用獨立分詞短語開頭，使句子有正式的味道：
Birds singing in the tree, another routine day starts.
Sea gulls flying over the water, the old fisherman flung his fishing meat into the open sea.
A dog following them, the police searched every suspect.
8. 用過渡句開頭，表示此句與上下句的關系：
Consequently, I slowed down to avoid a fine ticket.
In fact, she was a kindhearted woman.
9. 用同位語開頭，表示主句位于動詞發生的時間、地點、原因、方式、條件等：
A signing officer of the bank, Jane signs her name hundreds of times each day at work.
A TV addict, Jim watches TV movies one after another every evening until after midnight.
10. 用副詞從句開頭，表示主句謂語動詞發生的時間、地點、原因、方式、條件等：
When you are in need of help, give me a call.
Wherever you go, I follow.
Since your childen love hamburgers and fries, we might as well eat in MacDonald.
As if it were summer,everybody wear shorts and a T-shirt.
In case that you get lost, call me at this number.
11. 用名詞從句開頭，作整句的主語：
Whether you take the position or not makes great difference to me.
Why I am unhappy is something I can’t explain.
What they should do about the hole in the roof is their most pressing problem.
以下是托福短文寫作中使用率最高、覆蓋面最廣的基本句式，每組句式的功能相同或相似，考生可根據自己的情況選擇其中的1－2個，做到能夠熟練正確地仿寫或套用。
1、表示原因
1）There are three reasons for this.
2）The reasons for this are as follows.
3）The reason for this is obvious.
4）The reason for this is not far to seek.
5）The reason for this is that...
例如： There are three reasons for the changes that have taken place in our life.Firstly,people’s living standard has been greatly improved.Secondly,most people are well paid,and they can afford what they need or like.Last but not least,more and more people prefer to enjoy modern life.
2、表示好處
1）It has the following advantages.
2）It does us a lot of good.
3）It benefits us quite a lot.
4）It is beneficial to us.
5）It is of great benefit to us.
例如： Books are like friends.They can help us know the world better,and they can open our minds and widen our horizons.Therefore,reading extensively is of great benefit to us.
3、表示壞處
1）It has more disadvantages than advantages.
2）It does us much harm.
3）It is harmfulto us.
例如：However,everything dividesinto two.Television can also be harmful to us.It can do harm to our health and make us lazy if we spend too much time watching televi- sion.
4、表示重要、必要、困難、方便、可能
1）It is important（necessary,difficult,convenient,possible）for sb.to do sth.
2）We think it necessary to do sth.
3）It plays an important role in our life.
例如： Computers are now being used everywhere,whether in the government,in schools or in business.Soon,computers will be found in every home,too.We have good reason to say that computers are playing an increasingly important role in our life and we have stepped into the Computer Age.
5、表示措施
1）We should take some effective measures.
2）We should try our best to overcome（conquer）the difficulties.
3）We should do our utmost in doing sth.
4）We should solve the problems that we are confronted（faced）with.
例如：The housing problem that we are confronted with is becoming more and more serious.Therefore,we must take some effective measures to solve it.
