目的狀語從句的一個特點:由于目的都是未來的行為，所以從句中一般用表示未來可能性時態(tài)，當(dāng)然還可以用will,would,can等等。
1、由so...the...和 such...that...引導(dǎo)的目的狀語從句，應(yīng)該注意可能出現(xiàn)的以下結(jié)構(gòu)，例如：
I am telling you that lest you should make a mistake.
我告訴你這一點，以免你搞錯。
so nice a boy that…
such a nice boy that…
so beautiful/diligent/carefully … that…
such (fine weather/great improvement) that…
2、so that引導(dǎo)的結(jié)果狀語從句是我們在英語學(xué)習(xí)中經(jīng)常見到的一個詞組，例如：
1）She worked hard so that everything would be ready by 5 o'clock.
她努力工作，以便在五點前是一切都就緒。
2）She looked down so that she should not see his eyes.
她垂下目光，使她看不到他的眼睛。
3）Everyone lend a hand, so that the sowing was done in time.

3、so much so that的用法，該結(jié)構(gòu)用于形容詞或副詞之后，表示"到如此程度以致于"。例如：
He was very weak, so much so that he could not walk.
I long to visit Beijing, so much so that I dream about it every night.

4、in order(that)"以便" to the end that "為……起見，以便"例句:
1）He works hard in order that his family may be happy.
為了讓家人幸福，他努力工作。
2）He shouted at the top of his voice,to the that(=in order that)he might be heard.
他高聲呼喊，為的是讓人們能聽見他的說話。

5、含有情態(tài)動詞的目的狀語從句，例句:
1）I am punishing the child lest he should make the same mistake.
我懲罰那個孩子，以免他再犯同樣的錯誤。
2）She took her umbrella lest it(should)rain.
他帶了把雨傘，唯恐天要下雨。
3）Lest the wall(should)collapse,they evacuated the buliding.
他們撤離了大樓，以防墻壁倒塌。

6、in case既可引導(dǎo)目的狀語從句，也可引導(dǎo)條件狀語從句，主要視句意而定：
1）In case he comes, let me know.
如果他來，告訴我一聲。
2)Tell me in case you get into difficulty.
遇到困難請告訴我。
in case引導(dǎo)目的狀語從句，從句有時可用“should+動詞原形”這樣的形式：
Take your coat in case it rains (should rain). 帶著雨衣以防下雨。