原因
1 A number of factors are accountablefor this situation
A number of factors might contributeto the phenomenon .
2.The answer to this problem involvesmany factors.
3.The phenomenonmainly stems from the fact that...
4.The factors that contribute to this situation include...
5.The change in ...largely results from the fact that...
6.We may blame ...,but the real causes are...
7.Part of the explanationsfor it is that ...
One of the most common factors (causes .is that ...
Another contributing factor (cause .is ...
Perhaps the primaryfactor is that
But the fundamental cause is that
上一篇: 英语四级作文万能句型:比较
下一篇: 6月英语四级作文预测及范文:交通事故
外研版(一起)六下《Unit 1 We’re going to have a picnic》课件2
外研版(一起)六下《Module 2 Unit 1》课件2
2016春外研版(一起)六下Module 1 Unit 1《I want a hot dog,plaese》ppt课件2
外研版(一起)六下《Unit 1 We’re going to have a picnic》课件4
外研版(一起)六下《Unit 1 I took some photos》课件3
外研版英语六下(一起)《Module6 Unit 1》PPT课件1
外研版英语六下(一起)《Module5 Unit 2》PPT课件1
外研版英语一起点第十二册(六下)Reading for Pleasure
2016春外研版(一起)六下Module 1 Unit 1《I want a hot dog,plaese》ppt课件1
外研版英语六下(一起)《Module8 Unit 1》PPT课件2
外研版(一起)六下《Unit 1 Helen Keller》课件3
外研版(一起)六下《Unit 1 I took some photos》课件2
外研版(一起)六下《Unit 1 I bought a book for you》课件1
外研版英语一起点第十二册(六下)Review Module
外研版英语一起点第十二册(六下)Phonetic symbols
外研版(一起)六下《Unit 1 He spent about 21 hours》课件1
外研版英语一起点第十二册(六下)Module9
外研版英语六下(一起)《Module8 Unit 1》PPT课件3
外研版(一起)六下《Unit 1 We’re going to have a picnic》课件3
外研版(一起)六下《Module 1 Unit 1》课件1
外研版英语六下(一起)《Module8 Unit 1》PPT课件1
外研版英语六下(一起)《Module7 Unit 2》PPT课件1
2016春外研版(一起)六下Module 1 Unit 1《I want a hot dog,plaese》ppt课件3
外研版英语六下(一起)《Module6 Unit 2》PPT课件1
外研版英语六下(一起)《Module6 Unit 1》PPT课件包
2016春外研版(一起)六下Module 1 Unit 2《What do you want to eat》ppt课件1
外研版英语六下(一起)《Module5 Unit 2》PPT课件2
外研版(一起)六下《Unit 1 He is playing but then》课件1
外研版(一起)六下《Unit 1 He is playing but then》课件2
外研版英语六下(一起)《Module7 Unit 1》PPT课件1