www.ks5u.com2018级高一学年12月份月考英语试题 第一部分：阅读理解（共两节，40 分）第一节 （共 15 小题；每小题 2 分，共 30 分）阅读下列短文，从每题所给的 A、B、C、D 四个选项中，选出最佳选项，并在答题卡上将该项涂黑。AIt is easier to float in the ocean than it is to float in a swimming pool. Do you know why?Ocean water is full of salt and salt water can hold up more weight than fresh water. See for yourself!You Will Need: 3 cups of warm water Measuring cup (量杯) Wide-mouthed jar Salt Spoon Raw (生的)potatoYou Will Do:1. Pour 1.5 cups of warm water into the jar.2. Add 1/3 cup of salt.3. Stir(搅拌) until the salt is completely dissolved.4. Add another 1.5 cups of water. Pour it slowly over the back of the spoon into the jar so that the two liquids will not mix together.5.Gentlyplace the potato into the jar. Do not drop it.What Will Happen:The potato will sink but only halfway!Why?Salt water is heavier than fresh water, so it will stay on the bottom. The fresh water will remain on top.The potato is heavier than the fresh water, but it is lighter than the salt water. That is why the potato will sink halfway down.1.In the experiment, what should you do right after you pour the water over the spoon?AAdd the salt to the water. BStir the salt into the water.CPlace the potato in the jar. DPour warm water into thejar.2.In Step 4 of the experiment, why do you pour the water over the spoon “slowly”?AIt is easier to see what you are doing. BIt pushes the fresh water to the bottom.CIt will keep the water from coming out. DIt will keep the liquids from mixing together.3.In which step of the experiment do you add the salt?AStep 1 BStep 2 CStep 3 DStep 4 BCan dogs and cats get along well in the same home? People who are thinking about getting a dog as a friend for their cat are worried that they will fight. A recent research has found that if the cat is taken back home before the dog, and if they are introduced when still young (less than 6 months for cats, a year for dogs), it is highly probable that the two pets will get alongswimmingly. In two-thirds of the homes cats and dogs have a good relationship. However, it wasnt all sweetness and light. There was a reported coldness between the cat and dog in 25% of the homes, while aggression(侵略，好斗) and fighting were found in 10% of the homes. One reason for this is probably that some of their body languages are just different. For example, when a cat turns its head away it means aggression, while a dog doing the same means submission(顺从). In homes with cats and dogs living peacefully, researchers found a surprising behavior. They are learning how to talk each others language. It is a surprise that cats can learn how to talk “Dog”, and dogs can learn how to talk “Cat”. Whats interesting is that both cats and dogs have appeared to become smarter. They can learn to read each others body languages, suggesting that the two may have more in common than was expected. Once familiar with each others body language, cats and dogs can play together, and enjoy sleeping together on the sofa. The importance of this research on cats and dogs may go beyond pets to people who dont get along well, including neighbors, colleagues at work, and even countries. If cats and dogs can learn to get along, surely people have a good chance.4.The underlined word swimmingly in Paragraph 1 is closest in meaning to _.A. early B.mostly C.quickly D. smoothly5.Some cats and dogs may fight when _.A. they are cold to each other B. they look away from each otherC. they misunderstand each others body languages D. they are introduced at an early age6.It is suggested in Paragraph 4 that cats and dogs _.A. have common interests B. are less different than thoughtC. have a common body language D. are not so smart as expected7. What can we human beings learn from cats and dogs?A. We should learn to get along well with others B. We should know more about animals.C. We should live in peace with animals. D. We should learn more body languages.CJack Ma, whose Chinese name is Ma Yun, became the richest man in China, when the company he founded floated on the stock market last year with a value of around 140 billion. Here are some interesting stories about him. 1. Beer was the first word that Jack Ma searched for on the Internet In 1995 Ma made his first trip to the US and used the Internet for the first time. After searching for beer and then China, he saw that no results came up relating to China. He decided to set up a Chinese website一the seed for Alibaba had been sown. 2. Jack Ma appli