Unit5知识探究Step one Reading & Listening讲解1.I was very nervous at first.says Sarah. 萨拉说 我起初很紧张。 at first“起初；起先”，它主要用于强调前后对照，暗示接下来的动作与前面的动作不同，甚至相反。反义短语：at last最终。如： At first he didnt agree, but at last he had to.起初他不同意，但最终只好同意了。( )_,the Internet was only used by the government. But now its widely used in every field.A. As usually B. At first C. After all D. So far2. However ,my host family are friendly .但是，我的寄宿家庭非常友好。friendly 比较级friendlier/more f
