【经典实用】Unit3 Using Language要点详解
1．signal vi.& vt.发信号；发暗号；示意n.信号
For example，I have learned to signal to my teammates in computer language to give me the ball when I am open and have a good shot for a goal.(P23) 例如，当我的对面没有人防守，可以有一个很好射门机会时，我可以用计算机语言向队友示意把球传给我。
Did you signal before you turn right?
右转弯前你示意了吗？
At an agreed signal they left the room.
收到约定的信号后，他们离开了房间。
①signal(to)sb.(to do sth.)向……发出(做……)的信号，示意(某人)做某事
signal to do 用信号指示做……
signal(sb.)that示意……
②traffic signals 交通信号灯
a danger/warning signal危险/警告信号
She was signalling(to)the children to stay outside.sort of和kind of的区别
她在向孩子们打手势，要他们留在外面。
He signaled the waiter to bring the menu.
他做手势要侍者拿菜单来。
signal/mark/sign/symbol
选词填空(signal/sign/symbol/mark)
①White is the of purity(纯洁)．
②There are of weather changing.
③It is a famous trade ．
④We live too far from the city to get strong television ．
【答案】①symbol②signs③
mark④signals
2．type vt.& vi.打字n.类型
They had developed a new type of program just before the competition.(P23) 他们恰好在比赛前设计了一种新程序。
Could you type this letter for me?
你能为我打这封信吗？
There are two types of rocks in this area.
这个地区有两种类型的岩石。
kind/sort/type
这是一种新型词典。
Do you know what kind of music he likes best?
你知道他最喜欢哪种音乐吗？
What sort of people does he think we are?

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