合肥市2020年牛津上海版英语六年级下册Unit 9 基础知识练习A卷

合肥市2020年牛津上海版英语六年级下册Unit 9 基础知识练习A卷姓名:_ 班级:_ 成绩:_一、单选题1 . What do you think of his speech? Oh, very good. Its worth _.Ato listen toBlisteningClisten toDlistening to2 . The mother takes the baby to the park every weekend _ its rainy or windy.AsinceBbecauseCunlessDuntil3 . _ in Amsterdam is not cheap, so it is best to stay outside the city centre.AParkBParksCParkingDThe parks4 . （2016云南腾冲第五中学九年级模考）I learn English by _ aloud.AreadBto readCread toDreading5 . -Its time to have class. Please stop _. - OK.Ato talkBtalkingCtalkDtalks二、阅读单选Nuclear（核）powers danger to health, safety, and even life itself can be summed up in one word: radiation（辐射）. Nuclear radiation has a certain mystery（神秘）about it, partly because it cannot be found by human senses. It cant be seen or heard, or touched or tasted, even though it may be all around us. There are other things like that. For example, radio waves are all around us but we cant detect them, sense them, without a radio receiver. Similarly, we cant sense radioactivity without a radiation detector（探测器）. But unlike common radio waves, nuclear radiation is not harmless to human beings and other living things.At very high levels, radiation can kill an animal or human being completely by killing masses（块；团）of cells（细胞）in vital（=very important）organs. But even the lowest level of radiation can do serious damage. There is no level of radiation that is completely safe. If the radiation does not hit anything important, the damage may not be significant. This is the case when only a few cells are hit, and if they are killed completely, your body will replace the dead cells with healthy ones. But if the few cells are only damaged, and if they reproduce themselves, you may be in trouble. They reproduce themselves in a deformed（畸形）way. They can grow into cancer（癌症）. Sometimes this does not show up for many years. This is another reason for some of the mystery about nuclear radiation. Serious damage can be done without the victim（牺牲者）being aware at the time that damage has occurred. A person can feel fine, then die of cancer five, ten, or twenty years later as a result. Or a child can be born weak or easy to have serious illness as a result of radiation absorbed（吸收）by its grandparents. Radiation can hurt us. We must know the truth.6 . Nuclear radiation has a certain mystery because_.Apeople cant feel itBpeople know nothing about itCnuclear radiation isnt harmful to peopleDpeople havent any detectors7 . What can we know from the passage?AWe cant detect radioactivity even with modern equipment.BOnly radiation at very high levels can kill an animal or human being.CIf a few cells are only damaged，healthy cells will take the place of dead ones.DRadiation is harmful no matter what level it is.8 . The word significant in paragraph 3 has the similar meaning with _.AimportantBmeaningfulCharmfulDobvious9 . Radiation can hurt us in that it can_.Aaffect the healthy growth of our offspring（后代）Bdamage cells which grow into cancer years laterCkill large number of cells in main organs so as to cause death immediatelyDall of the above10 . Whats the authors main purpose in writing this passage?AEmphasizing the importance of protection of radiation.BSolving the mystery about radiation.CDiscussing the cause of cancer.DIntroducing the nuclear power.11 . The best title for this passage can be_.ANuclear radiation in our lifeBIllness in our lifeCHow to find Nuclear radiationDSerious damage in our life三、句型转换句型转換12 . Simon looks strong. (对划线部分提问)_Simon_?13 . My uncle does housework at home. (改为否定句）My uncle_at home.14 . Tom isnt from Beijing. (改为同义句)Tom_Beijing.15 . Are all of you in the school football team? (改为同义句)Are you_the school football team?16 . Li Na is good at playing tennis. (改为同义句)Li Na_.四、用所给单词的正确形式填空用所给单词的适当形式填空17 . Ill log in to the Internet to know about them， I know their _（address）.18 . Can we have a _（meet）to discuss that?19 . This train carried one thousand _（passenger）every day.20 . In ancient times the _（message）were relayed from one place to another.21 . Its not that these _（couple）lost themselves in the marriage；instead， they grew in it.五、单词填空任务型阅读For hundreds of years, scientists have been trying to answer what things have an effect on peoples emotions (情感). How you feel is controlled by many things. Your emotions can be affected by your personality, the actions of others and the events around you. Perhaps you dont know your emotions can be influenced by the weather as well.People often say they feel good when the sun is shining and sad when it is cloudy. In fact, sunlight makes us feel good. When sunlight hits our skins, our bodies produce a vitamin. Vitamins are chemical substances (化学物质) which we all need to stay healthy. Sunlight helps our bodies produce vitamin D. Vitamin D helps our bodies make a special chemical substance. This special chemical substance affects our brains(大脑) and makes us feel happy. For example, there are long, dark winters of little sunlight in Sweden and Norway, so many people in these countries often feel sad. Without much sunlight, their bodies produce less vitamin D. Without enough vitamin D, their bodies make less of this special chemical substance which makes them feel good. To help the people in these countries feel better, special “ sunrooms” with artificial(人造的) lights have been built. People can go there and get “sunlight” for an hour or two!The weather can also affect peoples emotions in other ways. Hot weather can make people angry because people feel uncomfortable when it is hot. In the same way, rain can make people angry because being wet can be unpleasant. As you can see, the weather can have an effect on the chemical substances which control our brains. Through these ways, the weather can influence our emotions. Sadly , while the weather can change us, we can hardly change the weather.The22 . inf