(A为正确选项,B为错误选项)
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(A为正确选项,B为错误选项)
1.------What would you do if it ________ tomorrow?------We have to carry it on ,since we've got everything ready.
A.rains B.will rain
2.I don't really work here ; I ____ until the new secretary arrives.
A.am just helping out B.have just helped out
3.I've won a two-day holiday to Florida.I ______ my mum.
A.an taking B.have taken
4.The Olympic Games_____ every four years.
A.are held B.are holding
5.The house belongs to my aunt but she______ here any more.
A.doesn't live B.hasn't lived
6.Teenagers________ their health because they play computer games too much.
A.are damaging B.damaged
7.------- Have you got any job offers?
-------- No.I_______
A.am waiting B.had been waiting
8.Years ago we did't know this,but recent sience________ that people who don't sleep well get soon ill.
A.has shown B.showed
1.------What would you do if it ________ tomorrow?------We have to carry it on ,since we've got everything ready.
A.rains B.will rain
2.I don't really work here ; I ____ until the new secretary arrives.
A.am just helping out B.have just helped out
3.I've won a two-day holiday to Florida.I ______ my mum.
A.an taking B.have taken
4.The Olympic Games_____ every four years.
A.are held B.are holding
5.The house belongs to my aunt but she______ here any more.
A.doesn't live B.hasn't lived
6.Teenagers________ their health because they play computer games too much.
A.are damaging B.damaged
7.------- Have you got any job offers?
-------- No.I_______
A.am waiting B.had been waiting
8.Years ago we did't know this,but recent sience________ that people who don't sleep well get soon ill.
A.has shown B.showed
1. if条件状语从句中主句将来时,从句现在时
2. help out的动作在说话时并未完成,而是正在进行
3. 现在进行时也可以表示将来的概念,故这里用A 而B表示动作已经发生,事实并不是这样
4. 奥林匹克是hold的宾语,所以用被动 词组:hold the olympic games
5. live是持续性动词,一般不和完成时一起使用,另:有any more一般用一般现在时或过去时
6. because后是一般现在时,句子前后语法保持一致,故选现在时
7. A单纯地表示“正在等待”的这个状态,而如果要用B的话,后面还要加上时间状语
8. 看到recent第一反应就是与现在完成时搭配,这也算是固定用法了 而过去时显然与时态不符
2. help out的动作在说话时并未完成,而是正在进行
3. 现在进行时也可以表示将来的概念,故这里用A 而B表示动作已经发生,事实并不是这样
4. 奥林匹克是hold的宾语,所以用被动 词组:hold the olympic games
5. live是持续性动词,一般不和完成时一起使用,另:有any more一般用一般现在时或过去时
6. because后是一般现在时,句子前后语法保持一致,故选现在时
7. A单纯地表示“正在等待”的这个状态,而如果要用B的话,后面还要加上时间状语
8. 看到recent第一反应就是与现在完成时搭配,这也算是固定用法了 而过去时显然与时态不符
(A为正确选项,B为错误选项)
A、理数分为正有理数、零和负有理数,所以A选项错误;B、单项式和多项式统称为整式,所以B选项正确;C、
The shoes(A) make my feet(B) to feel(C) very hot(D).错误选项为;正确
45.They(A) need(B) some more(C) breads(D).错误选项为------;正确答案为-
We see some(A) Chineses(B) near(C) our(D) school.错误选项为------
Let me(A) to close(B) the door(C) for you(D).错误选项为-----;正确答案
A选项、B选项哪里错误了求详细解释'
以下选项中正确的实型常量是( ) A)0 B)3.1415 C).871 为什
A、整数包括自然数和负整数,故本选项正确;B、应为数轴上的点与实数一一对应,故本选项错误;C、-|a|
B选项错误原因
选项B为什么错误?
A、某工厂每天节约用电150度,150为近似数,所以A选项错误;B、杭州市人口达120万,120为近似数,所以