The rivers will become dirtier and dirtier _______ we take action to protect the
题型：不详难度：来源：
The rivers will become dirtier and dirtier _______ we take action to protect them.| A．since | B．if | C．until | D．Unless |
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答案
| D |
解析
试题分析：句意：除非我们采取行动来保护这些河流，否则他们将会变得越来越脏。Unless表示“除非”，引导条件状语从句；since意为“自从……以来”和until意为“直到……才”都引导时间状语从句；if意为“如果”，引导条件状语从句，故选D。 |
举一反三
根据汉语意思完成句子。（共5小题，每小题2分，计10分，一空错全错）
小题1:这个男孩在为考试做准备。
The boy ____ __________ _______ the exam.
小题2:今天晚上你打算干什么？
_____ ____ you ______ _____ ___ this evening?
小题3:上周末我玩的很开心。
I __________ __________ last weekend.
小题4:我迫不及待地想和你谈谈。
I ______ ________ ____ talk with you.
小题5:你的学校生活怎么样？
_______ is your school life ______? |
| Brain is new here, _______ he has few friends. |
The game has _______ meaning _______ you do your best to win.| A．little; unless | B．no; if | C．a; until | D．no; whether |
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As everyone knows, English is very important today. 小题1:_____.It has become the most common language on the Internet and for international trade. If we can speak English well, we will have more chances succeed. Because more and more people have taken noticed of it, the number of people who go to learn English has increased at a high speed.
But for myself, 小题2:____.I learn English not only because of its importance and its usefulness, but also because of my love for it. When I learn English, I can feel a different way of thinking which gives me more room to touch the world. 小题3:____, I can feel the pleasure from the book, which is different from reading the translation. When I speak English, I can feel the confident from my words. When I write English, I can see the beauty which is not the same as our Chinese.
I love English, it gives me a colorful dream. 小题4:_____. With my good English, I can make good friends with many people from different countries. I can visit many places of interest. I dream that I can go to London, because it is the birthplace of English.
I also want to use my good English to introduce our great country to the English-speaking people. 小题5:_____.
Of course, I know Room was not built in a day. If I speak English very well, I believe my dream can come true one day.
阅读短文，把方框中A—E五个句子填到文中空缺处，使短文内容完整、通顺。
A. I hope I can travel around the world one day
B. the reason to learn English is special
C. It has been used everywhere in the world
D. I hope that they can also love our country
E. When I read English novels
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Which of the following is RIGHT? | A．In the early 19th century, the first trains began to carry passenger. | | B．Dinosaurs lived on Earth more than 60 millions years before human beings. | | C．The king ordered his men to collect a bag of rice. | | D．There are many tiny computers around us, and we dependent on them nearly every day. |
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