1、国家公共英语二级（阅读理解）练习试卷 33及答案与解析 0 First-time dog owners may encounter (遇到 ) many problems getting to know and train their bets. Sometimes a puppy (小狗 ), or even an older dog, will chew their fingers or bite them. Even in play, this can really hurt. Unfortunately, many bet owners tolerate (容忍 ) this in a
2、 young dog. However when the dog gets larger, it is not fun to be bitten by it. Training a dog fever to place his teeth on human skin or clothing is an important lesson. From now on, if you feel your dogs teeth while you are playing with him, say “ouch“ in a loud voice and move away from him. He wil
3、l soon learn that when he bites, you will not play with him any more. Another bad habit that many people tolerate in their pets is allowing them to bite and held on to clothing. Dont let your dog do this to you. When he does something you want him to do, praise him and tell him hes a good dog. You c
4、an also give him a treat at the same time he performs the good behavior. Eventually he will learn which kind of behavior is acceptable and which is not. Remember that reward is more effective than punishment, if you reward your dog when he does what you want him to, he will become very well behaved.
5、 Also remember that puppies need to chew on something. So give him a sock with a knot tied in it or an old shoe. If he chews the wrong thing, take it away while saying “No“ and give him something he can chew. If dogs are trained well, they will truly be your friends for a lifetime. 1 This passage is
6、 written to _. （ A） show dog owner how to behave （ B） teach people how to train dogs （ C） explain why a dog chews on something （ D） show good dog behaviors 2 According to this passage, many people tend to _. （ A） think puppies should be properly trained （ B） be too rough towards their dogs （ C） give
7、 their dogs treats infrequently （ D） allow their dogs to behave badly 3 Based on this passage, which of the following statements is NOT TRUE? （ A） Our behavior influences our dogs behavior. （ B） Dogs enjoy being rewarded by their owners. （ C） Saying nothing when your dog has bitten. （ D） Training a
8、dog takes patience and tim 4 The author thinks that a better way to train a dog is to _. （ A） punish him for any mistake he has made （ B） reinforce (加强 ) his good behavior with a treat （ C） tolerate him no matter what he does （ D） be kind to him and not to scold him 4 Plants need green leaves to mak
9、e food. A plant needs sunlight and carbon dioxide (二氧化碳 ) from the air for making food and it also needs water and salts from the soil to make food too. There are certain cells (细胞 ) in the leaves which change carbon dioxide and water into sugar. To do this the cells need energy, which they get from
10、 the sunlight. Green leaves make food for the whole plant. A red leaf can make food too because under the red coloring of the leaf there are food-making cells. There are no leaves that are completely yellow, for they cant make food. The plant makes sugar for its food. In sunlight green leaves make a
11、 lot of sugar. The veins (叶脉 ) cant carry all this sugar away, so the leaves change the sugar into starch (淀粉 ), which is kept and so stored in the leaves. At night, the starch change back to sugar. It is then carried away from the leaves. Some of the sugar is used as food by the plant while the res
12、t is stored as starch. In some plants, food is stored in the roots; in others it is stored in the stem and in leaves, fruits and seeds. 5 What is the main idea of this passage? （ A） How green plants make food. （ B） How green plants make sugar. （ C） How green plants get their energy. （ D） How green p
13、lants change sugar into starc 6 To make food, plants need a lot except _. （ A） the air （ B） the soil （ C） green leaves （ D） dead leaves 7 Sugar is made for its food by _. （ A） sunlight （ B） veins （ C） stem （ D） green leaves 8 Food is stored in roots or stems in the form of _. （ A） sugar （ B） starch
14、（ C） water and salts （ D） carbon dioxide 国家公共英 语二级（阅读理解）练习试卷 33答案与解析 【知识模块】 阅读理解 1 【正确答案】 B 【试题解析】 文章的第一段教大家如何训练狗改掉咬人的坏毛病；第二段告诉大家如何训练狗改掉爱咬衣物的毛病。可以看出，通过这篇文章，作者告诉大家如何让自己的宠物养成好习惯。很显然，选项 B是正确答案。 【知识模块】 阅读理解 2 【正确答案】 D 【试题解析】 第一段中有这样的句子 “Unfortunately, many pet owners tolerate this in a young dog.”第二段中提到
15、 “Another bad habit that many people tolerate in their pets is” 可以看出，许多人在对待自己的宠物时过于宽容，使得宠物养成了坏毛病。显然，选项 D的内容与之相符，是正确答案。 【知识模块】 阅读理解 3 【正确答案】 C 【试题解析】 纵观全文，选项 A、 B、 D的内容都在文章中有所体现，所以是真实的。第一段中提到 “if you feel your dogs teeth while you are playing with him, say ouch in a loud voice and move away from him.
16、”这样，狗就知道他做错了，以后就可以改正。所以选项 C的内容与之相悖，是不真实的。 【知识模块】 阅读理解 4 【正确答案】 B 【试题解析】 第二段提到 “Remember that reward is effective than punishment. If you reward your dog when he does what you want him to, he will become very well behaved.”可见，经常给狗奖励和表扬比惩罚有效，是一种好的训练方法。 【知识模块】 阅读理解 【知识模块】 阅读理解 5 【正确答案】 A 【试题解析】 本文是一篇科普
17、文章，主要讲的是植物就像是 “食品加工厂 ”，它是如何为自己制造食物的。选项 B、 C、 D的内容虽然在文章中提到过，但都不全面，不能概括主题，只有 A是唯一的正确答案。 【知识模块】 阅读理解 6 【正确答案】 D 【试题解析】 从第一段可知， the air、 the soil和 green leaves都是植物制造食物的必需条件，而 dead leaves根本不可能制造食物。所以 D是正确答案。 【知识模块】 阅读理解 7 【正确答案】 D 【试题解析】 第二段的第一句话说： “Green leaves make food for the whole plant.”第三段说 “The plant make sugar for its food.”由此可见，是绿叶制造出sugar作为自己的食物，而 stem和 veins只是 sugar流经和储存的地方。 【知识模块 】 阅读理解 8 【正确答案】 B 【试题解析】 根据最后一段的一句话 “the rest(sugar)is stored as starch.” 可以判断出正确答案 B。 【知识模块】 阅读理解
