A:After the procedure we have to go to the notice board to find out about lectures and then we have to put our names down for tutorial groups and go to the library.
B:Great. Well, first let's sit down and have our lunch.
A:How do we reserve a place?
B:You sign your name on the notice board.
Right, now that everyone knows what team they're in, we'll get on with the orientation and training program.
The concept of nuclear family with just one or two children has become universal in the developed countries and even in several developing countries.
和nuclear family相对的是extended family(大家庭)，尤指三代以上同堂的家庭。
The old people who are left without a partner may have to pay for nursing care, because they don't have a spouse to look after them.
Within this general field, surveying changes in the volume and stability of the ice-cap is vital, since these may have profound effects on world sea levels and on ocean currents.
He leads a wonderful life off campus.
He was supposed to talk about food shortage at the conference but he was off topic.
off the track
雅思词组8:offer/give opportunity for...to do给…提供机会做
The new policy offers opportunity for the disabled to eam their living by themselves.
give...a chance to do
A:Now we ought to be thinking about invitations...who mustn't we forget to invite?
B:The office staff.
雅思词组10:on a roll连连获胜;连续交好运;进展顺利;(与修饰词连用，表)处于…势头
A:We're on a roll now! Next point could be about where the interviewees actually get their music.
B:You mean that, do they buy it in music shops, or department stores?
A:Yes, or download it from the Internet.