1. (★★☆☆☆)将下列单词按要求归类。

(1)动词过去式:
(2)蔬菜:
(3)服装:
(4)比较级:

(1)动词过去式: slept, drank；(2)蔬菜: onion, carrot；(3)服装: sweater, coat；(4)比较级: bigger, better

先明确各类别的含义：动词过去式是动词的过去形式；蔬菜是可食用的植物类食材；服装是穿戴的衣物；比较级是形容词或副词的比较形式，再将给定单词按类别划分。

2. (★★☆☆☆☆)根据汉语提示写单词，使句子完整。
(1)There was no computer in my school ten years （以前）.
(2)Now there is a （体育馆）in my school.
(3)I often （滑冰）in winter.
(4)I often play （羽毛球）after school.
(5)I （查阅）it up on the Internet last week.

ago, gym, skate, badminton, looked

本题需根据汉语提示，结合句子时态、固定搭配填写合适单词。(1)“以前”对应ago，构成固定短语ten years ago；(2)“体育馆”对应gym；(3)“滑冰”对应skate，主语为I，一般现在时用原形；(4)“羽毛球”对应badminton，固定搭配play badminton；(5)“查阅”对应look up，由时间状语last week可知用过去式looked。

3. (★★★☆☆)从方框中选择合适的词，补全对话。
was were went go helpful greener tree trees stronger
A: What did you do last Wednesday, Mr Wang?
B: I to plant trees.
A: Why?
B: Because it Tree Planting Day.
A: How many did you plant?
B: I planted five trees. Trees are very to people. We should plant more trees.
A: You're right. We should make our country .

1. went 2. was 3. trees 4. helpful 5. greener

1. 根据时间状语last Wednesday，此处用go的过去式went；2. 主语it搭配过去式be动词was；3. how many后接可数名词复数，故填trees；4. 固定搭配be helpful to表示“对...有帮助”；5. make sth + 形容词，此处用greener表示“更绿的”。