【文章內(nèi)容簡介】
in new lesson at the same time. Bicycles have so many advantages, but we must be careful when riding. Step 2. Presentation Present the new words, such as careless, helmet, lightcolored, ride too fast, ride at night, have lights, break the traffic rules, get a fine, be in danger with the help of PPT. present the words and phrases in 1b to prepare for filling in the blanks. Present the expresstion of adverbial clause of condition to form a sentence structure. S