名詞

1.science-scientist

scientists

2.toys

3.they-them-themselves-theirs-their

I-me-myself-mine-my

主語-賓語-強調(diào)自己-強調(diào)事物-形容詞

themselves

4.visitors

5.stars

6.opinions

7.producers

8.twice

9.collecting／collection（均可）

collection（最優(yōu)）

10.parks

11.yourself-yourselves

12.achievement

13.points

形容詞／副詞

1.finest

more／most＋形容詞原型

形容詞原型＋er／est

2.helpful

be found＋形容詞＝be＋形容詞

3.quickly

4.easily

5.Unfortunately

6.Luckily

7.powerful

powerless 無力的

n＋ful表示多

n＋less表示少

8.largest

9.growing

grow-growth（名詞）

10.broken

doing 主動，進行中的，性質(zhì)

done 被動，完成，心理

11.freely

12.successfully

13.largest

14.clearly

15.largest

16.their

17.western

north-northern

south-southern

east-eastern

major-majority多數(shù)

minor-minority少數(shù)

18.slowly