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1、Unit 4 Scientists who changed the world课时分层作业(十).单词拼写1Some mushrooms contain a deadly (致命的)poison.2I know I should stop smokingdont give me a lecture (教训)about it.3Food will last longer if kept in an airtight container(容器).4According to the theory (理论)of relativity，nothing can travel faster than lig
2、ht.5There is broad (广泛的)support for the governments policies.6You may refer (参考)to your notes if you want.7You must finish the work within the limited (有限的)time.8Cycling is highly beneficial (有益的)to health and the environment.9He owed his survival (存活)to his strength as a swimmer.10We did all the wo
3、rk and she gets all the credit(赞扬)!.阅读理解AMost of us know about the Nobel Prize，especially the Nobel Peace Prize，but few of us know anything about the man who set them up.His name was Alfred Nobel.He was a great scientist and inventor himself.Besides，he had a big business.His business may surprise yo
4、u.He made and sold explosives.His companies even made and sold weapons.Isnt this something that surprises you？The man who made money from weapons should set up the Peace Prize?Though Alfred Nobel had a lot of money from weapons，he hated war.He hoped that there would be no war in the world.He was one
5、 of the richest in Europe.When he died in 1896，he let behind him a lot of money and his famous will.According to his will，most of his money was placed in a fund.He wanted the interest from the fund to be used as prizes every year.We know them as the Nobel Prizes.The Nobel Prizes are international.Al
6、fred Nobel wanted the winners to be chosen for their work，not the country they came from.Alfred Nobel had given his whole life to his studies and work and to the benefits of mankind.He made money all by his own efforts，but he let the world share his wealth.His inventions and wealth stay with the wor
7、ld for ever.【语篇解读】艾尔弗雷德诺贝尔把他的一生献给了他的学习和工作，以及人类的利益。他靠自己的努力挣钱，但他分享了他的财富给这个世界。他的发明和财富永远留给世人。1Alfreds business was_Amaking and selling explosivesBnot making and selling weaponsCmaking explosives and selling weapons Dmaking weapons and selling explosivesA细节理解题。根据第一段中的“His business may surprise you.He mad
8、e and sold explosives.”可知他的企业是制造并贩卖炸药的。2Nobel wanted to set up the Nobel Peace Prize because_Ahe made enough moneyBhe hated warChe wanted to get more interest from the fund Dhe liked to live in a peaceful worldB细节理解题。根据第二段中的“he hated war.He hoped that there would be no war in the world.”可知Nobel讨厌战争，
9、因此他希望以后不再有战争。3Nobel Prizes come from_Aall Nobels money in the fundBall Nobels money in his company Call the interest from the fund Dsome of the interest in the fund C细节理解题。Nobel Prizes的来源在本文中是指：“He wanted the interest from the fund to be used as prizes every year.”也就是他基金中每年的利息。4Which statement of th
10、e following is RIGHT according to the passage?ANobel set up his company to sell clothes.BMost of Nobels money was used for the world wars.CNobel Prizes are only for some people from some special countries.DNobel worked hard in his life and saved lots of money for the world to share.D细节理解题。根据最后一段中的“H
11、e made money all by his own efforts，but he let the world share his wealth.”可知Nobel让全世界分享(share)他的财富。BIts the time of year when kids are thinking about their holiday wish lists.So whats a parent to do when a child asks for a smartphone?Sydney Crowe is in sixth grade and has a smartphone.While she adm
12、its she mostly uses it for “playing games and watching television”，her mom，Patty，says thats not why Sydney got the phone.Pattys main concern was safety.The bus missed Sydneys stop enough times to really worry her parents.Without means to call an adult，she would walk to school near a busy highway.Tha
13、ts when Patty gave her daughter a phone.Patty says she rolled her eyes at the idea of her child having a smartphone，but finally decided to allow it for one main reason：peace of mind.On the other side of the argument，theres Mercy Shannon.Shes 9 years old and doesnt have a cell phone.Mercys mom，Brooke
14、 Shannon，like many other parents，faced the cell phone decision early on.She started an online promise called “Wait Until 8th” to create a community of parents waiting to give their kids smartphones until at least eighth gradewhen most children are nearing high school.In addition to wanting her kids
15、to have a break from screens，Brooke worries about the influence of social media(媒体).“Children just dont have the brain development at this age to be able to deal with the social situations that come with social media，” she says.That isnt just a parent concern.Richard Freed，a child psychologist(心理学家)
16、and author of a book on the subject，wanted to research the topic after seeing an increase in the number of children coming to him with anxiety and depression.His suggestion？Put some ground rules in place.“I want parents to understand how powerful these technologies are，” he says.Theres no magic age
