1.individuals,characters, folks替换people ,persons.
2.positive, favorable, rosy (美好的)，promising (有希望的)，perfect, pleasurable , excellent, outstanding, superior替换good.
3.dreadful, unfavorable, poor, adverse, ill (有害的)替换bad （如果bad做表语，可以有be less impressive替换。 ）
eg.An army of college students indulge themselves in playing games, enjoying romance with girls/boys or killing time passively in their dorms. When it approaches to graduation ,as a result, they find their academic records are less impressive.
4.an army of, an ocean of, a sea of, a multitude of ,a host of, many, if not most替换many.
注：用many, if not most 一定要小心，many后一定要有词。
Eg. Many individuals, if not most, harbor the idea that….同理 用most, if not all ,替换most.
5.a slice of, quiet a few 替换some.
6.harbor the idea that, take the attitude that, hold the view that, it is widely shared that, it is universally acknowledged that替换think (因为是书面语，所以要加that)。
7.affair ,business ,matter 替换thing.
8.shared 代 common .
9.reap huge fruits 替换get many benefits.
10.for my part ,from my own perspective 替换 in my opinion.
11.Increasing(ly),growing 替换more and more( 注意没有growingly这种形式。所以当修饰名词时用increasing/growing.修饰形容词，副词用increasingly.)
Eg.sth has gained growing popularity. Sth is increasingly popular with the advancement of sth.
12.little if anything或little or nothing替换hardly.
13.beneficial, rewarding替换helpful.
14.shopper,client,consumer,purchaser 替换customer.
15.overwhelmingly,exceedingly,extremely, intensely 替换very.
16.hardly necessary, hardly inevitable ... 替换 unnecessary, avoidable.
17.indispensable替换necessary
18.sth appeals to sb, sth exerts a tremendous fascination on sb 替换sb take interest in / sb. be interested in.
19.capture one's attention替换attract one's attention.
20.facet,demension,sphere代aspect.
21.be indicative of ,be suggestive of ,be fearful of代 indicate, suggest ,fear.
22.give rise to, lead to, result in, trigger 替换cause.
23. There are several reasons behind sth 替换..reasons for sth.
24.desire 替换want.
25.pour attention into 替换pay attention to.
26.bear in mind that 替换remember.
27. enjoy, possess 替换have(注意process是过程的意思)。
28. interaction替换communication.
29.frown on sth替换 be against , disagree with sth .
30.to name only a few, as an example替换 for example, for instance.
31. next to / virtually impossible替换nearly / almost impossible.
32.regarding/concerning 替换about.
33.crucial/paramount 替换important.
34.第一（in the first place/the first and foremost）;第二（there is one more point ,I should touch on, that….）;第三（the last but not the least）.
35. assiduous替换hard-working
36. arduous替换difficult
37.underdeveloped/financially-challenged 替换poor（因为poor通常含有贬义）
38. demonstrate /manifest 替换show
39. invariably 替换always
40. perilous/hazardous替换dangerous(写社会类作文时常用，说什么社会现象是不好的，有害的)
41. formidable 替换difficult
42. quintessential 替换typical（举例时常用，例如：a quintessential example should be cited that=for example; for instance）
43. distinguished 替换famous
44. feasible替换possible
45. consequently, accordingly替换so