隨著雅思考題難度增加，填空題空格前的定位詞頻頻出現同義詞替換，而非文章原詞，因此考生在準備雅思詞彙之時，建議總結同義詞。以下為劍橋雅思真題中的一些高頻同義詞替換，建議同學們收藏作為備考參考。
1. significance
=impressive
=meaning
=sense
n. 重要性
2. alter
=change
=revise
=make changes
v. 改變
3. different
=individual
=not like
=vary
=not the same
=contrast with
=diverse
adj. 獨特的
4. invention
=device
=creation
=innovation
n. 發明
5. success rate
=positive result
=achievement
=progress
=breakthrough
=accomplishment
n. 成就
6. pick out
=identify
=recognize
=know
=tell
v. 認出，識別
7. limit
=minimize
v. 限制
8. farming
=agriculture
n. 農業
9. simultaneous
=at the same time
=together
=at once
= at one time
adj. 同時的
10. devise
=formulate
=invent
=create
=come up with
=make up
=conceive
=dream up
v. 創造
11. divide
=split
=separate
=break up
=break down
=take apart
=take something to piece
v. 分開
12. create
=introduce
=invent
=cause
=lead to sth
v. 發明
13. organize
=arrange
=set out
=put sth in order
=line up
v. 組織，協調
14. aviation disaster
=air crash
n. 空難
15. prompt
=result in
=lead to
=motivate
=induce
v. 導致
16. resemble
=like
=sililar
=alike
=comparable
v. 類似
17. prolong
=extend
=spin out
v. 延伸，延長