外研版高中英语,必修3,module4课件
4. Sandstorms in China appear to have increase in recent years --appear to: 似乎，好象 He appears to be upset today. 他今天似乎很沮丧。My parents appeared to get angry easily yesterday. e.g Do let your mother know all the truth. She appears ___ everything.
A. to tell C. to be telling
B. to be told D. to have been told
appear强调表面给人的印象，但事实不一定如此。 seem暗示判断有
一定的根据，比较接近事实。 look强调视觉给人的印象。