1、本网站免费注册后即可以下载，点击开通VIP会员可无限免费下载！
2、资料一般为word或PPT文档。建议使用IE9以上浏览器或360、谷歌、火狐浏览器浏览本站。
3、有任何下载问题，请联系微信客服。
扫描下方二维码，添加微信客服
Word formation
useless adj.
use v.
→
useful adj.
careless adj.
care v.
→
careful adj.
helpless adj.
help v.
→
helpful adj.
She is wearing a _______.
helmet
light-colored adj 浅色的
careless adj.
Listen to 1a and complete the sentences.
We should never ride ______ _____.
We should wear bicycle ________ when riding.
We should have _______ on the bike or wear _____________ clothes while riding at night.
We should learn more ______ ______.
1b
too fast
helmets
lights
light-colored
traffic rules
Listen again and answer the questions.
1. Where did the accident happen?