D Look, read and circle
1 a Nancy takes off her clothes and goes to bed.
b Nancy tries on her new clothes at the shop.
2 a Mike is happy because the new shoes fit him.
b Mike is sad because the new shoes do not fit.
3 a Mrs Brown helps Tim put on the jacket.
b Mrs Brown helps Tim take off the coat.
4 a Su Hai gets to school at eight o'clock every day.
b Su Hai gets to school before eight o'clock every day.
5 a There are some trees in front of the house.
b There are some trees behind the house.
1 a Nancy takes off her clothes and goes to bed.
b Nancy tries on her new clothes at the shop.
2 a Mike is happy because the new shoes fit him.
b Mike is sad because the new shoes do not fit.
3 a Mrs Brown helps Tim put on the jacket.
b Mrs Brown helps Tim take off the coat.
4 a Su Hai gets to school at eight o'clock every day.
b Su Hai gets to school before eight o'clock every day.
5 a There are some trees in front of the house.
b There are some trees behind the house.
答案：1 a
解析：图片中 Nancy 正在脱衣服，准备上床睡觉，与选项 a 描述一致。
2 b
解析：图片中 Mike 表情难过，正在脱鞋，可推测新鞋不合脚，与选项 b 描述相符。
3 a
解析：图片中 Mrs Brown 正在帮 Tim 穿夹克，“put on”表示穿上，与选项 a 一致。
4 b
解析：图片中时钟显示时间不到八点，Su Hai 正在走向学校，说明她每天八点前到校，与选项 b 相符。
5 a
解析：图片中树木在房子的前面，“in front of”表示在……前面，与选项 a 一致。
解析：图片中 Nancy 正在脱衣服，准备上床睡觉，与选项 a 描述一致。
2 b
解析：图片中 Mike 表情难过，正在脱鞋，可推测新鞋不合脚，与选项 b 描述相符。
3 a
解析：图片中 Mrs Brown 正在帮 Tim 穿夹克，“put on”表示穿上，与选项 a 一致。
4 b
解析：图片中时钟显示时间不到八点，Su Hai 正在走向学校，说明她每天八点前到校，与选项 b 相符。
5 a
解析：图片中树木在房子的前面，“in front of”表示在……前面，与选项 a 一致。
E Read and choose
why before understand leave take off because
1 It is hot in the classroom. Lily ______ her coat.
2 Sara's feet hurt ______ she wears a pair of new shoes.
3 —______ don't you go and play football with your friends?
—Because I have English lessons this afternoon.
4 —I don't ______ this sign. What does it mean (意思是)?
—It means the floor is wet.
5 Miss Li cannot get to school ______ eight o'clock because the bus is late.
6 Mrs Brown often ______ her umbrella on the bus.
why before understand leave take off because
1 It is hot in the classroom. Lily ______ her coat.
2 Sara's feet hurt ______ she wears a pair of new shoes.
3 —______ don't you go and play football with your friends?
—Because I have English lessons this afternoon.
4 —I don't ______ this sign. What does it mean (意思是)?
—It means the floor is wet.
5 Miss Li cannot get to school ______ eight o'clock because the bus is late.
6 Mrs Brown often ______ her umbrella on the bus.
答案：1 takes off
解析：教室热，所以 Lily 应该脱下外套，“take off”表示脱下，主语 Lily 是第三人称单数，所以用 takes off。
2 because
解析：“Sara 的脚疼”和“她穿了一双新鞋”之间是因果关系，后句是原因，所以用 because。
3 Why
解析：答句用 Because 回答，所以问句用 Why 提问“为什么”。
4 understand
解析：后句问“它是什么意思”，说明前句是“不理解这个标志”，“understand”表示理解。
5 before
解析：公交车晚点，所以李老师不能在八点前到校，“before”表示在……之前。
6 leaves
解析：“leave sth. + 地点”表示把某物落在某地，主语 Mrs Brown 是第三人称单数，所以用 leaves。
解析：教室热，所以 Lily 应该脱下外套，“take off”表示脱下，主语 Lily 是第三人称单数，所以用 takes off。
2 because
解析：“Sara 的脚疼”和“她穿了一双新鞋”之间是因果关系，后句是原因，所以用 because。
3 Why
解析：答句用 Because 回答，所以问句用 Why 提问“为什么”。
4 understand
解析：后句问“它是什么意思”，说明前句是“不理解这个标志”，“understand”表示理解。
5 before
解析：公交车晚点，所以李老师不能在八点前到校，“before”表示在……之前。
6 leaves
解析：“leave sth. + 地点”表示把某物落在某地，主语 Mrs Brown 是第三人称单数，所以用 leaves。