3. A。多音节和部分双音节形容词的比较级的构成是在形容词原形前加more，最高级则加the most。

2. C。如果表示population的“多”或“少”，要用形容词large或small。第二空用代词that代替the population。

1. C。多音节形容词的比较级应在形容词原形前加more。

10.Of the two Australian students, Masha is _______ one. I think you can find her easily.

A. tallest           B. the taller

C. taller            D. the tallest

【答案详解】

9. It is _______ to work out this problem. You needn’t go to the teacher. 

A. enough easy                                 B. easy enough

C. easily enough                         D. very easily

8. She is as _______ (busy) as a bee.

A. busy             B. busier          

C. the busiest    D.  more busy

7.In our city, it’s _______ in July, but it is even _______ in August.

A. hotter, hottest                        B. hot, hot

C. hotter, hot    D. hot, hotter

6. The number of the trees around my village is getting _______.

A. larger and larger                   B. higher and higher

C. more and more                     D. less and less

5. ―These moon cakes are delicious.

―Yes. But I think the ones with nuts are      __ of all.

A. delicious       B. the most delicious

C. more delicious                      D. the delicious

4. All the students in our class are over fifteen except Li Lei. He is _______ in our class.

A. older            B. the oldest    

C. younger        D. the youngest