2021_2021学年高中英语Unit4AstronomythescienceofthestarsSectionⅡWarmingUp&Reading_LanguagePoints课时作业含解析新人教版必修.doc
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1、课时作业(十四)Unit 4Astronomy:the science of the starsSection Warming Up & ReadingLanguage Points(本栏目内容,在学生用书中以独立形式分册装订!).单句语法填空1It is generally accepted that smoking is_(harm) to our health.答案:harmful2The_expression on his face suggested that he was not able to work out the_problem.(puzzle)答案:puzzled;puz
2、zling3There are lots of _ (religious) in the world and everyone has the right to believe in them.答案:religions 4There are a great number of different _ (theory) about learning styles throughout the world.答案:theories5The wind was so _ (violence) that several big trees were blown down by it.答案: violent
3、6Tom is _ (like) his brother,Tony.He is outgoing,while Tony is shy.答案:unlike 7The photos show that water once _ (exist) on Mars,a red planet.答案:existed8The fouryearold Russian girl has drawn_(globe) attention for her great gift for languages.答案:global9According to the result of calculating,the final
4、 cost could be as much as _ (billion) of dollars.答案:billions10_makes the things worse is that he has lost his patience.答案:What.阅读理解AAmerican researchers are making final plans to send a spaceship into space for a possible meeting with an asteroid (小行星)The spaceship is called OSIRISRex.It is six mete
5、rs long and shaped like a mans bow tie (蝶形领结)The asteroid is called Bennu.It is larger than the Empire State Building in New York City.Bennu weighs about 60 million tons and is traveling at a speed of more than 100,000 kilometers an hour.The huge space rock is getting closer to Earth.It comes as clo
6、se as 500,000 kilometers to the planet every six years.Researchers want to take a close look at Bennu because it is considered one of the most dangerous asteroids in our solar system.The American space agency,NASA,will start its research next month.The plan is to put OSIRISRex in orbit (轨道) around B
7、ennu in about two years.The spacecraft will not land on Bennu,but will make contact (接触)with the asteroid for about five seconds.At that time,a part of the spacecraft will gather about 60 grams of material from Bennus surface.All of that material will return to the earth inside something called SRC.
8、It is expected to land in the Utah desert in September of 2023.Scientists want to learn as much as possible about Bennu because of the danger it could cause to our planet.The asteroid “has a quite high possibility of negatively influencing the Earth” in less than 200 years,according to a NASA statem
9、ent.Another thing that makes Bennu dangerous is its path around the solar system.That path is changing because of something called the Yarkovsky effect.The Yarkovsky effect is what happens when a cold piece of rock gets close enough to the sun to get heated.Scientists want to know how that warmth ch
10、anges the orbit of asteroids and other space objects.语篇解读 小行星Bennu每六年就离地球近50万公里,将来可能会给地球造成不良影响。1What do we know about Bennu?AIt looks like a mans bow tie.BIt is larger than New York City.CIt travels 500,000 kilometers every six years.DIt is getting closer to the earth each day.解析:细节理解题。根据第二段的“It com
11、es as close as 500,000 kilometers to the planet every six years.”可知,这颗小行星正离地球越来越近。 答案:D2. What does the underlined part “It” in Paragraph 3 refer to?ABennus surface.BOSIRISRex.CSRC. DThe collected material.解析:词义指代题。根据划线词前面的“All of that material will return to the earth inside something called SRC.”以
12、及后面的“.expected to land in the Utah desert.”可知,it指代的是返回舱设备(SRC)。答案:C3Bennus path is changing most probably because _.Aits traveling really fastBits being heated by the sunCits being influenced by the earthDits getting colder than before解析:细节理解题。根据末段的“That path is changing because of something called
13、the Yarkovsky effect.The Yarkovsky effect is what happens when a cold piece of rock gets close enough to the sun to get heated.”可知,这颗小行星的路线改变是因为它受到太阳热量的影响。答案:BBThere is good news for ladies:The two happiest years of your life might have gone by,but things will not be always bad from now on.Women are
14、 most likely to reach the highest point of happiness at 85 years old,according to a new survey by the British National Health Service (NHS)To know peoples level of happiness,the 12question survey asked 8,000 British adults to rate (评估) their levels of selfconfidence,anxiety and sleep quality.Through
15、 those answers,NHS researchers got each adults grade.The grades were between 012 points and those getting four or higher were considered mentally ill.The final findings show that women are more likely than men to report serious mental health problems throughout their lives,which is a surprising patt
16、ern for researchers.However,that possibility drops by the time both sexes reach their eighties.A closer look at the results shows that just 14 percent of women over the age of 85 have mental health problems.Twentyeight percent of women aged 16 to 24,18 percent of women aged 25 to 34,and 24 percent o
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