1.in order that引导的目的状语从句
in order that＂为了；以便＂。多用于正式文体，通常可以与so that换用。☆
They stopped at Hangzhou in order that they could go around West Lake. 他们在杭州停了下来，以便游览西湖。
The expert spoke slowly in order that everyone should understand. 专家讲得很慢，以便人人都能听得懂。
so that＂为了；以便＂。so that通常可以与in order that换用，它所引导的目的状语从句总是放在主句之后，在非正式文体中，常省略that。
Speak clearly so that they may understand you. 你要讲得清楚，他们才可能听得懂。
She wanted tea ready at seven so she could be out by eight. 她想让茶点在七点钟以前就备好，这样她八点就可以出门了。
3.in case/for fear (that)/lest等引导的目的状语从句
in case，for fear(that)和lest这三个从属连词都表示否定目的，意思是＂以免＂，＂以防＂。in case多用于英国英语，它所引导的从句中的谓语动词可以是陈述语气形式，也可以是虚拟语气形式；for fear(that)引导的从句中的谓语带有may，might，should等情态动词；lest用于正式文体，它所引导的从句中的谓语动词用虚拟语气形式。
Take your umbrella with you, lest it should rain.
=Take your umbrella in case it rains.
He took an umbrella with him for fear that it might rain. 他带了一把伞，以防下雨
1.(2018·天津卷·单项填空)Let’s not pick these peaches until this weekend ___________they get sweet enough to be eaten.
A.ever since B. as if
C.even though D. so that
2.Cathy had quit her job when her son was born _______________ she could stay home and raise her family.
A.now that B. as if C. only if D. so that
【解析】考查连词。A.now that既然；B.as if好像；C.only if只要；D.so that以便。这里是so that引导的目的状语从句。句意：当Cathy的儿子出生的时候，她就放弃了自己的工作，以便待在家里照顾家人。根据句意故选D。
【名师点睛】本题考查连词so that 的用法，此类辨析题需掌握引导状语从句的连词的不同含义并结合语境，本题中的so that引导目的状语从句。意思是：以致，为了，以便于。这个词组还可以和in order that，in order to，so as to 进行替换。所以做好此类题要先分析前后两个句子的关系，了解具体语境中的连词的意思，从而判断出正确的选项，学生要记得积累每一题中所出现的连词的意思，不能只看其表面。注意有的连词的意思并不是表面上的那样，如果出现不熟悉的词语，应该采用排除法，而不是直接看表面意思来选答案。
Suddenly it began to rain heavily, so that it was almost impossible to carry on driving. 突然下起了大雨，几乎无法继续开车。
Linda phoned me in on arrival so that I know she was safe and sound. 琳达到达后给我打了电话，因而我知道她平安无事。
They started out early, so that they didn’t miss the train. 他们早早就出发了，所以没误火车。（结果状语从句）
They started out early so that they would not miss the train. 他们早早出发是为了不误火车。（目的状语从句）
She spoke so fast that nobody could catch what she was saying. 她说话如此之快竟没有人听出来她在讲什么。
There is so little time left that I have to tell you about it later. 现在剩下的时间不多了，我只好以后再给你讲这件事。
引导结果状语从句的such…that的具体内容是：such + a/an + 形容词+名词+that从句。其中的名词可以是可数名词的单数或复数，也可以是不可数名词。such + a/an + 形容词 + 单数名词 + that从句可换成so + 形容词 + a/an + 单数名词 + that从句。
The Japanese student made such rapid progress that he soon began to write articles in Chinese. 那个日本留学生进步很快，不久就开始用中文写文章了。
The professor told us such a funny story that all the students laughed.
＝The professor told us so funny a story that all the students laughed.
The force of the explosion was such that it blew out all the windows. 爆炸的力量很大，所有的窗户都被炸掉了。
His anger was such that he lost control of himself. 他气得不能克制自己的感情。
1.The film Pio 2is _____________ interesting ____________ I would like to see it again.
2.Wang Yaping is such an excellent astronaut ____________ she has been assigned to perform our country’s second manual space docking.
1.The situation in central London, _________ drivers spent 50% of their time in queues, became so bad _________the government decided to do something about it.
A.which; that B.which; what
C.where; that D.where; which
2.Global warming is such a great threat _________ all the options deserve to be explored.
A.as B. that
C.so D. and
3.Mary took some books with her _________she would not get bored during the long journey.
A.in case B.as if
C.in order that D. only if
4.Goals have to be realistic _________students can reach them and feel a sense of achievement.
A.so long as B.so that
A.now that D.even though
5.Wang Yaping is such an excellent astronaut _________she has been assigned to perform our country’s second manual space docking.
A.as B. that C. which D. where
6.We were in_________ when we left that we forgot the airline tickets.
A.a rush so anxious B.a such anxious rush
C.so an anxious rush D. such an anxious rush
7.The manager was so disappointed at all_________ Hill was doing_________ he walked out of the office angrily.
A.that; what B.that; that
C.which; which D.what; that
8.They held a meeting _________they could hear everyone’s idea.
A.even if B.now that
C.in case D.so that
9.You must remind him to take his medicine, _________he forgets.
A.in case of B.in case
C.in order that D. even if
10.Network is such an important part of society _________it has influenced our daily life.
A.as B. that
Nearly forty percent of China’s young people born after 1990 have turned off notifications(通知) from social media apps due 1 sensing the negative effects of social media, according to the 2 (recent) released Kantar China Social Media Impact Report, Beijing Evening News reported.
The report shows that social media, especially WeChat, 3 (become) more and more popular in the past years among people over the age of 40, 4 the WeChat use of the “post-90s” generation has slightly decreased, from 94.1 percent to 86.6 percent.
Most of those people 5 (interview) for the report mentioned that positive effects of social media include socializing with 6 (acquaintance) and taking in more information. However, respondents also noted that social media has caused them to read fewer books, suffer from 7 (bad) eyesight, sleep less and have less privacy, among other concerns.
As 8 result, 39 percent of the “post-90s” generation attempts 9 (avoid) the negative effects of mobile phone use. In the first place, they turn off app notifications when necessary. Moreover, they intentionally limit the 10 (frequent) of social media interactions(交流) and stay away from social media entirely in certain situations.