新概念第二册Lesson7.ppt

Lesson 7,Too late,New words,detective A detective is someone whose job is to discover what has happened in a crime or other situation and to find the people involved. Sherlock,airport An airport is a place where aircraft land and take off.,expect If you expect something, or expect a person to do something, you want that thing happen. e.g I expect to see my uncle.,valuable Valuable objects are objects that are worth a lot of money. e.g Time is very valuable.,parcel A parcel is something wrapped in paper, put in a bag or large envelope, or in a box, usually so that it can be sent to someone by mail.,diamond A diamond is a hard, bright, precious stone which is clear and colorless. Diamond is also a kind of jewelry.,steal If you steal something from someone, you take it away from them without their permission and without intending to return it. e.g He was stealing a boys bicycle.,main The main thing is the most important one of many similar things in a particular situation. e.g This is a busy main road.,airfield An airfield is an area of ground where aircraft take off and land. It is smaller than an airport.,guard A guard is someone such as a soldier, police officer, or prison officer who is guarding a particular place or person.,precious Precious objects and materials are worth a lot of money because they are rare. e.g .Jewelry and precious objects belonging to her mother.,stone Stone is a hard solid substance found in the ground and often used for building houses.,sand Sand is a substance that looks like powder, and consists of extremely small pieces of stone. Some deserts and many beaches are made up of sand.,Note on the text,detectives were waiting at the airport all the morning (past continuous tense) keep guard watch over so as to protect to their surprise to ones surprise e.g To my surprise, he is not late today.,Key structure,What were you doing when I telephoned? the past continuous tense When I was watering the garden, it began to rain. I was having breakfast when the telephone rang. While we were having a party,the light went out.,George was reading while his wife was listening to the radiao. As I was getting on the bus, I slipped and hurt my foot Someone knocked at the d