Unit 4 知识点总结1.Describe to your partner what might happen to the objects in the photos.(1)sth. happen to. sb.某事发生在某人身上e.g. Did you hear what happened to David last night?(2)happen to do sth.碰巧做某事e.g. I happened to see Peter on the way to the bookstore yesterday.(3)It happened that碰巧......I happened to be out when he called. (= It happened that I was out when he called.)2. Imagine your home begins to shake and you must leave it right away.shake(v.) (shook, shaken) 1).摇动，震动e.g. Shake the bottle before taking the medicine.2). 使受震撼；使（信念等）动摇e.g. They were badly shaken by the news of her death.3).（指人）打颤，颤抖e.g. She was shaking with cold/laughter/fear/anger.shake(n.) (C 常用单数）摇动，震动 a shake of the head 摇头拓展：shake hands with sb. = shake sb. by the hand = shake sb's hand 与某人握手shake one's head 摇头（表示否定、怀疑、悲伤、不赞成）3. For three days the water in the village rose and fell, rose and fell.rise(vi.)“升起，升高”，（河水，物价等）上涨；提高；起身e.g. The sun rose at seven o'clock. /The river is rising after the rain./Prices have risensteadily during the past decade. /His voice rose in excitement. /The all rose from their seats to greet us.raise(vt.) 1)抬起，举起e.g. If you have any question, please raise your hand.2)提高；提出；增加 e.g. He raised his voice.The price of tomatoes has been raised recently.3)抚养；饲养 e.g. She raised a lot of chickens.4. In the farmyards, the chickens and even the pigs were too nervous to eat. too...to结构一般表示否定含义,意为"太...以致于不能e.g. He is too old to work.但too...to在下列情况下却表示肯定含义:1)“never / not too …to” “不太……所以能……”。
