题目
题型:不详难度:来源:
基础训练篇(16)
We must have water to live. __ 1________the water we use is clean and fresh, it will make us ill. The animals __ 2________ (live) in and around lakes and rivers must also have clean water. Our rivers and lakes supply most of our water. The clear, blue water found by the first American settlers has changed. Many of our water sources are now __ 3________. They are filled __ 4________ dirt and waste which cannot be cleaned out. In many places, water is not safe for us to use.
Lake Erie was __ 5________ a beautiful lake. Now it has been called “a dying lake”. Waste from nearby homes and factories has been dumped into __ 6________. Fish can no longer live in much of its polluted water. George Washington once called the Potomac “__ 7________ finest river in the world”. Now its water is no longer blue. Instead, it is soupy green. Suds(肥皂泡沫), from detergents(洗涤剂;洗衣粉) used to wash clothes, often cover the water of our rivers.
Water cannot __8___________(make) in a factory. Once water is polluted, it is __ 9________ to make it clean and safe again. We must learn to take care of the water __ 10_______ we now have.
答案
1. Unless 2. living/that live/which live 3. polluted/dirty
4. with 5. once 6. it 7. the 8. be made
9. hard/difficult 10. that / which
解析
核心考点
试题【基础训练篇(16)We must have water to live. __ 1________the water we use is clean and f】;主要考察你对数词等知识点的理解。[详细]
举一反三
基础训练篇(17)
In order to know a foreign language thoroughly, four things are necessary. Firstly, we must understand the language when we hear 1. spoken. Secondly, we must be able to speak it ourselves correctly with confidence and without hesitation. 2. , we must be able to read the language, and fourthly, we must be able to write it. We must be able to make sentences that are grammatically correct.
There is no easy way to success 3. language learning. 4. good memory is a great help, but it is not enough only 5. (memorize) rules from a grammar book. It is not much use learning by heart long lists of words and 6. meanings, studying the dictionary and so on. We must learn by using the language. 7. we are satisfied with only a few rules we have memorized, we are not really learning the language. “Learn through use” is a good piece of 8. (advise) for those 9. are studying a new language. Practice is important. We must practise speaking and 10. (write) the language whenever we can.
The Internet has become part of young people’s life. _1. _______ report shows that 38% of students often use the Internet. Most of them get _2.________ (use) information on the Internet _3._______ use the Internet to help with their studies. But many students don’t use it _4.________ a good way. Some play games too much, and some visit websites __5.__________ shouldn’t look at. So bad things may happen __6._________ students spend too much time on the Internet.
__7._______ is important for students to use the Internet properly. Now we have a textbook, __8._______ uses many examples to teach students some good ways to use the Internet. It gives useful __9._______(advise).
Some students also make friends on the Internet. But if you want to have a face-to-face _10.__ ______ (meet) with your online friends, please let your parents know and meet in a proper place.
Rivers are one of our most important natural resources. Many of the world’s great cities are located on rivers, and almost __1_______ country has at least one river __2_______(flow) through it that plays __3________ important part in the lives of its people.
Since the beginning of history, people _4______________ (use) rivers for transportation. The longest one in the United States is the Mississippi, and the lifeline of Egypt is the Nile. __5_____________ transportation, rivers give water to drink, water for crops, and chances for fun and recreation (消遣,娱乐活动)for the people __6________________ live along their banks.
However, large cities and industries that are located on rivers often make problems. As the cities grow __7____________ size and industries increase in number, the water in the rivers becomes __8_____________ (pollute) with chemicals and other materials. People come to kwon the __9_____________ (important) of doing more to keep their rivers clean __10_____________ they want to enjoy the benefits of this natural resource.
No one could recognize me after I got my new transistors in the 31 (1960).There were times when my size was 32 (total) changed. I became small and thin but I got cleverer and cleverer, quicker and quicker. And my memory became so large 33 I couldn’t believe it! But I was always so lonely 34 (stand) there by myself, 35 in the early 1960s, they gave me a family 36 (connect) by a network. I could share information 37 others and we could talk to each other. At about the same time we learned to talk to humans using BASIC. I was brought into people’s homes in the 1970s. Since then, my family and I 38 (use) by 39 (billion) of people to deal with information and communicate with each other around the world by the Internet. I love 40 (use) to connect people who aren’t close enough to speak to each other. I have truly been built to serve the human race since my birth.
Dawn graduated several years ago. She __31__________(be) a successful model, and 31________(find) a job had not been a problem ─ until _33_________(recent).
When Dawn did start trying to find another type of job , she found in interview after interview that computer literacy(能力)was a must to 34 _____(employ).
__35_______ Dawn had always been afraid of learning computer while in college ─ our school didn’t require to learn computer at that time — she managed to get a degree __36_______ ever confronting(面对) a computer.
Finally, after months of searching for a job, Dawn failed. She had to admit that sidestepping (回避) computer literacy(读写能力) hadn’t been a good idea. _37______, She enrolled in a computer course at 38 ____adult vocational school.
__39__________(surprise), although she had been afraid of learning computer, she took to computers __40________much that after about a year she opened her own computer-based business.
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