7.One of the reasons given for…is that…。
8.What is also worth noticing is that…。
9.There are many (different / several /a number of / a variety of)causes (reasons) for this dramatic (marked / significant) growth (change / decline / increase) in…. First,…. Second,…. Finally,…。
10.There is no evidence to suggest that…。
11.Why are (is / do / did)…? For one thing,…. For another,…。
12.Another reason why I dispute the above statement is that…。
13.It gives rise to (lead to / bring /create) a host of problems (consequences)。
14.There are numerous reasons why…, and I shall here explore only a few of the most important ones。
15.It will exert (have / produce) profound (far-reaching / remarkable / considerable / beneficial / favorable / undesirable / disastrous) effect (influence) on…。
16.A multitude of factors could account for (contribute to / lead to / result in / influence) the change (increase / decrease / success / failure / development) in…。
17.In 2000, it increased (rose / jumped / shot up) from 5 to 10 percent of the total (to 15 percent / by 15 percent)。
18.By comparison with 2002, it decreased (dropped / fell) from 10 to 5 percent (to 15 percent / by 15 percent)。
19.It accounts for 15 percent of the total。
20.There were 100 traffic accidents in April, an increase of 5 percent in a five-month period。
21.By 2002, only (less than / more than / almost / about / over/ as many as) three quarters (40 percent of / one out of five / one in four) college population (graduates / housewives) as against (as compared with) last year (2002) preferred to (liked)…。
22.With the development (improvement / rise / growth / general recognition / acknowledgement / realization) of…, vast changes awaits this country’s society。
23.Now people in growing (ever-increasing / significant) numbers are beginning (coming / getting) to believe (realize / recognize / understand / accept / see / be aware) that…。
24.According to a(n) recent (new / official) study (survey / report / poll)，…。
25.History (Our society) is filled (abounds) with the examples of…。
26.The story (case / instance / situation) is not rare (isolated / unique)， it is one of many examples (typical of dozens)。
27.A (one) recent (new / general / nationwide) study (survey / poll / investigation) conducted (taken) at a university by (officials / scientists / experts) indicates (reveals / suggests / shows / proves / demonstrates) that…。
28.According to (As can be seen in / As is shown in) the figures (statistics / findings / data / graph / table) released (provided) by the government (an institute)， it can be learned (seen / predicted) that…。
29.There is (no) good (every / little / sufficient / considerable / strong) evidence (proof) to
30.Personal experience (Examples I heard / read of) leads me to conclude that…。
31.We must admit the undeniable fact that…。
32.No one can deny (ignore / doubt / overlook / obscure / brush aside) the fact that…。
33.Experience (Evidence) suggests (shows) that…。
34.Take for example…who (that)…。
35.The same is true of…。
36.As the saying goes,“…。”
结尾段的核心句型：
1.From what has been discussed above (Taking into account all these factors / Judging from all evidence offered)， we may safely draw (reach / come to / arrive at) the conclusion that…。
2.All the evidence (analysis) supports (justifies / confirms / warrants / points to) a(n) unshakable (unmistakable / sound / just) conclusion that…。
3.It is high time that we place (lay / put) great (special / considerable) emphasis on the improvement (development / increase / promotion) of…。
4.It is high time that we put an end to the deep-seated (unhealthy / undesirable / deplorable) situation (tendency / phenomenon) of…。
5.We must look (search / call / cry) for an immediate action (method / measure)， because the present (current) situation (phenomenon / tendency / state / attitude) of…, if permitted (allowed) to continue (proceed)， will surely (certainly) lead to (result in) the end (destruction / heavy cost) of…。
6.There is no easy (immediate / effective) solution (approach / answer / remedy) to the problem of…, but…might be useful (helpful / beneficial)。
7.No easy method (solution / recipe / remedy) can be at hand (found / guaranteed) to solve (resolve / tackle) the problem of…, but the common (general / public) recognition of (realization of / awareness of / commitment to) the necessity (importance / significance) of…might be the first step towards change (on the right way / in the right direction)。
