1.A number of factors are accountable for this situation.
A number of factors might contribute to the phenomenon.
2. The answer to this problem involves many factors.
3. The phenomenon mainly 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 explanations for it is that ...
One of the most common factors is that ...
Another contributing factor is ...
Perhaps the primary factor is that
But the fundamental cause is that ...
上一篇： 英语六级考前必看写作句型(5)
下一篇： 英语六级考前必看写作句型(6)
人教新目标版英语八下《Unit 3 What were you doing when the UFO arrived》ppt课件（五）
人教新目标版英语八下《Unit 10 It’s a nice day, isn’t it》ppt课件包（含声音素材）
人教版英语八下Unit 10《I’ve had this bike》（Section A 2a）课文朗读
人教新目标版英语八下《Unit 8 Why don’t you get her a scarf》ppt课件
新人教版英语八下《Unit 1 Will people have robots》ppt复习课件
新人教版英语八下《Unit 2 What should I do》(SectionA)ppt课件
人教新目标版英语八下《Unit 7 Would you mind turning down the music》ppt课件（四）
人教新目标版英语八下《Unit 7 Would you mind turning down the music》ppt课件（三）
新人教版英语八下《Unit 1 Will people have robots》ppt复习课件1
人教版英语八下Unit 10《I’ve had this bike》（Section A 2b）课文朗读
人教新目标版英语八下《Unit 6 How long have you been collecting shells》ppt课件（三）
人教新目标版英语八下《Unit 3 What were you doing when the UFO arrived》ppt课件（二）
人教新目标版英语八下《Unit 3 What were you doing when the UFO arrived》ppt课件（四）
人教新目标版英语八下《Unit 8 Why don’t you get her a scarf》ppt课件（四）
新人教版英语八下《Unit 9 Have you ever been to an amusement park》(SectionA)ppt课件
英语八下《Unit 5 If you go to the party, you’ll have a great time》(period 1)ppt课件
人教新目标版英语八下《Unit 9 Have you ever been to an amusement park》ppt课件（二）
人教新目标版英语八下《Unit 7 Would you mind turning down the music》ppt课件
人教新目标版英语八下《Unit 2 What should I do》ppt课件
新人教版英语八下《Unit 2 What should I do》（第1课时）ppt课件
新人教版英语八下《Unit 10 It’s a nice day, isn’t it》ppt课件包（含素材文件）
人教新目标版英语八下《Unit 8 Why don’t you get her a scarf》ppt复习课件
人教新目标版英语八下《Unit 3 What were you doing when the UFO arrived》ppt课件（三）
新人教版英语八下《Unit 9 Have you ever been to an amusement park》ppt课件
人教新目标版英语八下《Unit 7 Would you mind turning down the music》ppt课件（一）
人教新目标版英语八下《Unit 9 Have you ever been to an amusement park》ppt课件（五）
英语八下《Unit 5 If you go to the party, you’ll have a great time》(SectionA)ppt课件
新人教版英语八下《Unit 2 What should I do》ppt复习课件
人教新目标版英语八下《Unit 9 Have you ever been to an amusement park》ppt课件
人教新目标版英语八下《Unit 2 What should I do》ppt课件（一）