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Crocodiles (鳄鱼) 1 their eggs and leave them under leaves or sand. Baby crocodiles use their teeth 2 their way out of the shells (壳).
Crocodiles only live 3 it is hot. They are found in Australia 4 America. They spend most of 5 time lying around in the rivers. The crocodiles’ long tail 6 when the animal is swimming. It is an excellent weapon(武器). It 7 be used to strike (打击) the 8 . One blow will knock 9 a man or even a big animal at 10 . The crocodile has a hard neck. It cannot turn its 11 from side to side and so it can 12 see in front of itself.
The crocodile has its teeth 13 by the crocodile bird. For its food this bird takes the bits in the crocodile’s mouth. This helps the crocodile a lot 14 it cannot move its tongue up and down. 15 its terrible teeth it catches its food. The food may be a fish, an animal, or even a careless man.
1. A. lay B. lie C. lain D. lying
A. to feel B. to turn C. to break D. to rush
A. when B. while C. where D. if
A. as B. and C. but D. so
A. its B. hot C. their D. cold
A. is used B. for help C. very useful D. be helpful
A. should B. can C. need D. must
A. friend B. enemy C. student D. family
A. soon B. far C. up D. down
A. most B. best C. once D. worst
A. tail B. head C. eyes D. body
A. not only B. still C. even D. only
A. pulled B. cleaned C. taken D. brushed
A. because B. so C. if D. whether
A. Under B. Between C. For D. With
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Who designed (设计) the first helicopter (直升飞机)? Who __1__ of the most famous pictures in the world? Who knew more about the human body than most __2__? There is an answer __3__ all these questions --- Leonardo de Vinci (达芬奇).
Leonardo may have been the greatest genius (天才) __4__ have ever known. He lived in Italy around the year 1500, but many of his inventions seem modern to us today. For example, one of his notebooks has drawings of a helicopter. Of course, he couldn’t __5__ a helicopter with the things he had. But scientists say his idea would have worked.
But Leonardo __6__ an inventor. He was one of the greatest artists of his day. By the time he was twenty years old, he was called a master ( 大师) painter, and as he got older he became __7__ more famous. Sometimes he drew a hand ten different ways __8__ he was ready to paint.
Many of Leonardo’s wonderful paintings are still with __9__ today. You may know one of his most famous works the __10__ woman known as the Mona Lisa.
1. A. took B. made C. painted D. invented
2. A. artists B. doctors C. painters D. people
3. A. to B. of C. for D. from
4. A. the scientists B. the artists C. the world D. people
5. A. draw B. paint C. work D. build
6. A. was just B. wasn’t just C. wasn’t D. was no longer
7. A. less B. no C. even D. very
8. A. before B. after C. because D. when
9. A. him B. us C. them D. you
10. A. interesting B. crying C. smiling D. surprising
答案部分见下一页
老师点评
这篇文章主要讲述了鳄鱼的生活习性，你也许会感叹：大自然太神奇了!如果鳄鱼没有长长的尾巴，它拿什么作武器?如果鳄鱼能转动它的舌头，那鳄鱼鸟怎么生存?
答案简析
1. A。lay eggs产卵，下蛋lay-laid-laid。lie躺，位于lie-lay-lain，说谎lie-lied-lied。
2. C。小鳄鱼破壳而出。
3. C。鳄鱼住在热的地方。where引导地点状语。
4. B。
5. C。与前面的They对应。
6. A。被用来。其他的选项有语法错误。
7. B。can 表示一种能力，意为它的尾巴能用来攻击。
8. B。敌人。
9. D。knock down 撞倒。
10. C。at most最多，at the best处于最佳状态，at once立刻,马上。根据意思应为“立刻把一个大的动物击倒”。
11. B。根据上文脖子硬，那当然是头不能转动，而不可能是尾巴，眼睛或身体。
12. D。而头不能转动，就意味着只能看前方的东西。
13. B。have sth. done 让某事被做。Have its teeth cleaned 让鳄鱼鸟给它清洗牙齿。
14. A。根据上下文之间的联系，这里是陈述为什么对它有帮助的原因，因此用because。
15. D。固定搭配，意为“用牙齿”。
第二篇：
老师点评
本文介绍了堪称世界上最伟大的天才——达•芬奇在发明、艺术等方面为人类所作的巨大贡献，文章层次分明，通俗易懂。
答案简析
1.C。为了引出话题人物━━达•芬奇，这里引用了设问手法，问题应表示“是谁画了世界上最著名的画”，故选择动词painted。
2.B。对人体比较了解的莫过于医生了，将达•芬奇与医生相比才能显示其对人体的精通。故选择doctors。
3.A。介词to常表示一一对应的关系，“问题的答案”习惯表达为an answer to a question。
4.D。达•芬奇应是世人所知道的天才中最伟大的人，the world 一般指每个人，相当于第三人称单数，故people为正确选项。
5.D。draw和paint不合文意, work为不及物动词，不能直接接宾语。在那个时代，达•芬奇所不能做的应是制造飞机，故选择build。
6.B。这一句起承上启下的作用，意为“达•芬奇不仅仅是一名发明家”，故选择 wasn’t just。
7.C。less和no不合文章，very不能用来修饰比较级，而even常用来修饰比较级，意为“甚至更……”，故为正确选项。
8.A。为了使自己的画达到最高境界，应在画这幅画之前去尝试不同的画法，所以应选before。
9.B。达•芬奇的画今天依然保存在世，为本文作者以及读者所共享，所以应选us。
10.C。达•芬奇的名作━━Mona Lisa以画中人物面部神秘的微笑而名扬天下，故选smiling。
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