3. We _________to take part in the party.

Key: 1 dress 2. Dressed in 3. dressed up

4. swell v. 膨胀，隆起

Her leg has swollen badly.

她的腿肿得很厉害。

The wind swelled the sails.

风鼓起了帆。

二、重点短语

1、first aid "急救"

知识拓展

give/offer aid 援助 come to sb.'s aid 帮助某人

cut off aid （突然）终止援助 a hearing aid 助听器

teaching aids 教具 medical aid 医疗救护

with the aid of 借助于

2、get injured 受伤

get done结构相当于be done强调状态。

The computer got (was) damaged when we were moving. 我们搬家的时候，电脑碰坏了。