2020-2021学年英语新教材人教版必修第一册课时作业4 UNIT 1 DISCOVERING USEFUL STRUCTURES.doc

1、.阅读理解Middle School Laboratory Safety RulesScience is about discovering and exploring (探索)the natural world.Explorations can occur in the classroom, laboratory or field.As part of your science lessons, you will take part in many activities using many different materials, equipment and chemicals，which

2、 can be dangerous if not used correctly.As a result, you may be faced with biological, chemical or physical hazards.Safety is THE MOST IMPORTANT thing.The following safety rules have been developed for the protection and safety of everyone.Behave yourself in a responsible way at all times.Risky beha

3、vior such as throwing things and doing experiments without teachers instructions is not allowed.Eating, drinking, chewing gum，wearing makeup, touching contact lenses(隐形眼镜) or other unsafe activities are not allowed.Do not enter or work in the laboratory unless an instructor is present.Never enter ar

4、eas where chemicals are kept.Taking any chemicals or equipment away from the classroom or laboratory is not allowed.The safety rules must be followed at all times.Review these rules with your teacher and parents, then sign and get the signature (签名) of a parent.The signature shows that you understan

5、d the lab can be dangerous, and that you have read the rules and agree to follow them at all times.Signatures are needed before you can go on with any lab or science classroom activity.这是一篇说明文。文中介绍了中学实验室的安全规则及注意事项。1What does the underlined word “hazards” probably mean in Paragraph 1?AIllnesses.BExam

6、inations.CDangers. DExperiments.答案：C解析：根据文章第一段内容可知，在实验课上，学生会使用到各种材料，仪器及化学用品。由文中的“which can be dangerous if not used correctly”可知选C。2Which of the following might be allowed in the lab?ADrinking soda. BHaving breakfast.CTaking away chemicals. DWearing glasses.答案：D解析：根据文中“Eating，drinking.are not allowe

7、d”可知戴隐形眼镜是不被允许的，但框架眼镜应该可以。故选D。3What should students do after reading the rules?ASign to agree to the rules. BGet a teachers signature.CTake a test on safety rules. DGo on with lab activities.答案：A解析：根据文中最后一段“Review these rules with.and agree to follow them at all times.”可知，学生阅读并签字同意遵守这些规则。故选A。.完形填空Wh

8、en I was in primary school, I got into a major argument (争论) with a boy named Tom in my class.I cant 1 what it was about, but I have never forgotten the 2 I learnt that day.I was 3 that I was right and he was wrong，but he strongly believed that I was wrong and he was right.Our teacher decided to tea

9、ch us a very important lesson and 4 a good idea.She 5 both of us up to the front of the class and placed him on one side of her desk and me on 6 .In the middle of her desk was a large, round object (物体)I could clearly see that it was black.She asked the boy what 7 the object was.“White，” he answered

10、 in a loud voice.I couldnt believe he said the object was white， 8 it was obviously black! Another 9 started between my classmate and me, this time about the colour of the object.The teacher told me to go stand where the boy was standing and told him to come stand where I had been.We changed 10 ， an

11、d now she asked me what the colour of the object was.I had to answer, “White.” It was then 11 I realised I was wrong.In fact, it was an object with two 12 coloured sides, and from his side it was white. 13 from my side was it black.My teacher taught me a very important lesson that day: You must 14 y

12、ourself in the other persons shoes and look at the 15 through their eyes in order to truly understand their views.本文讲述了作者小时候和同学发生争论时，老师巧妙地通过一件事给两人上了一课，让作者意识到要站在他人的立场考虑问题。1A.think Bremember Cforget Ddetermine答案：B解析：句意：我不记得争论的是什么，但我永远忘不了那天学到的教训。连词but表达转折之意，所以设空处应与forgotten意义相反，故选B项。2A.class Bspeech Ct

13、ext Dlesson答案：D解析：句意见上一题解析。根据第二段第二句Our teacher decided to teach us a very important lesson.和最后一段第一句My teacher taught me a very important lesson that day.可知选D项，lesson意为“经验；教训”。3A.sure Btold Cafraid Dpersuaded答案：A解析：句意：我确定我是对的，他是错的；而他坚信他是对的，我是错的。根据but后的strongly believed可知此处选A项。be sure(that).意为“确信”。 4A

14、.kept up with Bwent on with Ccame up with Dgot along with答案：C解析：根据设空后的a good idea可知选C项。come up with意为“想出，提出(主意、计划、回答等)”。5A.woke Bbrought Cadvised Dcame答案：B解析：句意：她把我们两个带到班级前面，让他待在讲台的一边，而我待在另一边。bring sb. to.意为“把某人带到”。故选B项。6A.the other Bother Canother Dothers答案：A解析：句意见上一题解析。the other指两者中的另一个，符合语境，故选A项。

15、7A.height Bcolour Csize Dshape答案：B解析：句意：她问这个男孩这个物体是什么颜色。根据设空后的White可知，老师问的是颜色。故选B项。8A.for Bunless Cif Dalthough答案：A解析：句意：我不敢相信他说这个物体是白色的，因为它明明是黑色的！由句意可知设空处前后是因果关系。故选A项。9A.match Bfight Cargument Dconversation答案：C解析：“我”认为那个物体是黑色的，而他认为是白色的，再根据第一段第一句中的a major argument可知，此处表示两人又一次开始争论起来。故选C项。10A.desks Bs

16、eats Cattitudes Dplaces答案：D解析：老师让作者和他的同学互换位置进行观察。故选D项。11A.when Bbefore Cthat Dsince答案：C解析：句意：就在那个时候我意识到我错了。此句为强调句，被强调部分是then。故选C项。12A.loosely Bfrequently Cdifferently Dbeautifully答案：C解析：从同学的角度看是白色，从作者的角度看是黑色，其实是一个物体两边有不同的颜色。故选C项。13A.Still BThen CAlso DOnly答案：D解析：根据语境可知，只有从作者这一面看它才是黑色的。故选D项。14A.sit Bstand Clie Dput答案：D解析：句意：为了能真正理解他们的想法，你必须换位思考并从别人的视角来看问题。put yourself in sb.s shoes意为“(设想)处于某人的地位或处境”。故选D项。15A.performance Bloneliness Cmovement Dsituation答案：D解析：句意见上一题解析。situation意为“形势；情况”，符合句意。故选D项。