unless的用法.ppt

1.He spoke so loud in order to be heard clearly.
完成同意句，每空一词。
He spoke loud_______ _______others can hear so that
clearly. 2.I won’t believe you if you don’t tell me the truth. unless you tell me the truth. I won’t believe you________ 3.You will be attracted by the beautiful sights here. will att来自百度文库act The beautiful sights here________ _______you.
although 意思是尽管，虽然 可用于句 首或者句中，但是不与but 连用。
虽然我的小汽车很旧，但是仍然跑的很好。
Although my car is very old, it still runs very well.
It still runs very well although my car is very old . My car is very old but it still runs very well.
unless 意思是“如果不…. ;除非….可 以放在句子首或者句子的中间”有时可 用if …not 替换 1.他不来电话我就去. I will go unless he telephones .
I will go if he doesn’t telephone .
① I will not go there unless I hear from him.
will feel sorry. You will feel sorry unless you taste the traditional snacks.
If you don’t have a map, you’ll get lost easily. = Unless you have a map, you’ll get lost easily. = You’ll get lost easily unless you have a map.
2. 时间和条件状语从句遵循“主将从现”的原则。 即主句用一般将来时，从句用一般现在时代替将来时。 如：
I'll call you as soon as I get home.
我一到家就给你打电话。
If you have time, I'll ask you some questions.
如果你有时间，我将问你一些问题。
专题13┃ 复合句(宾语从句、 状语从句、定语从句)
② I shall go there unless it rains. 如果你不早点起床的话,你就赶不上早班车
You won’t catch the early bus unless you get up earlier.
1 If you don’t read the map carefully, you will get lost easily.(改同义句) Unless I read the map carefully, you will get lost easily. 2 If you don’t sleep well, you won’t feel comfortable.（同义句） Unless you sleep well, you won’t feel comfortable.
3.though 用作副词意思是“可是，然而， 不过” 此时though 常放句子尾。
It is hard work, he enjoys it though.
I told you to close the door, you didn’t close it though.
Unless you taste the traditional snacks, you