Unit 3 The world online课件12（牛津高中选修7）.ppt

* Unit 3 The world online The fifth period Linking verbs What is a linking verb? A linking verb is a word used to connect the subject of a sentence to further information about the state which the subject is in. Point out the linking verbs 1. I am Zhu Zhenfei. 2. Surfing the Internet is really interesting. 3. We are now in need of English teachers. 4. The question is how to solve the problem. 5. What we want to know is who will give us the lecture next Monday. 6. Your suggestion sounds reasonable. 7. It seems that everyone here knows him quite well. 8. Milk goes bad easily in summer if you do not put it in the fridge. am is are is is sounds seems goes 连系动词（即系动词）用于连接主语和表语，说明主语的状态，性质，特征或身份。 常见的系动词是be? ,它的三种变化形式为：am , is , are . 除了 be 动词之外还有一些，他们大致可分为四类： 1 表示“ 似乎“? 如：? appear? , seem  She appears/seem all right. They appear/seem in favour of the Internet. He appears/seem to be very friendly with us. They appear/seem to have misunderstood me. It appears/seem that she will win. It appearsseem to me that you are all mistaken. 试比较： He seems (to be) forty. He appears (to be) forty. 他似乎四十岁了。（说话人有一定根据） 他看上去四十岁。（从外表上看） 2. 表示“感觉” 如：?? look , sound , feel , taste , smell? That sounds wonderful, but some people claim that the Internet is a waste of time. If you always eat fast food, vegetables may not taste delicious to you. 1. It feels good to sit in front of the TV after a hard day’s work. 2. When he got up on stage, he looked a little nervous. 3. The air often smells bad in Internet cafes. 表示? “变化 ”如：? become , come , get , grow , turn , fall, go Leaves turn green in spring. The boy will go mad if you don’t allow him to use the computer. Your son had grown much taller. He gets easily excited when playing computer games. She fell asleep the moment she got into bed. 4. 表示其他含义? 如：? keep ,remain , stay , stand , prove The Internet proved of great value to us during our project. You shouldn’t keep quiet in a debate. People sta