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1、 Unit 5 A delicate worldPeriod 2一词形转换和动词的形式变换(用所给词的正确形式填空)1I think it no good (do) too many things for children.2Although it isnt allowed to set off fireworks, people still think it necessary_ (celebrate) the Spring Festival warmly.3I find it interesting (learn) English.4I dont feel it difficult (un
2、derstand) the Special English.5All these noises made it impossible for me (go) on with the work.6Do you consider it any good (try) again?二固定用法和搭配(在空白处填入一个适当的单词)1I think necessary for us to learn English well.2I used to feel it a terrible thing my mother should have to do the housework endlessly.3Our
3、 success depended on it every team member played their own part well.4We have made clear that we are strongly against smoking in the office.5I would appreciate if you could give me a hand with my work tomorrow.6Why dont you bring it to his attention youre too ill to work on?7I see to that she goes t
4、o school on time.8I hate it some one came in without knocking the door.9I cant answer for it he is honest.10Dont take for granted that your parents should do everything for you.三句型转换1Mike thinks that it is his duty to do something for the people in need of help.Mike for the people in need of help.2A
5、ll the children are well taken care of in this kindergarten. We owe it to Mrs. Lee.We in this kindergarten.3Many people think that it is important for students to learn a foreign language well.Many people a foreign language well.4I still believe that it is necessary that you should pay a visit to yo
6、ur school friends.I still a visit to your school friends.5You wont catch me doing that again. I have made it known to you.I _ you wont catch me doing that again.四书法与写作请临摹之后再利用课余时间背诵。提醒：每个字母圆润饱满，压线书写；宜用0.5或0.7 mm中性笔。.阅读理解AMicroplastics are everywhere in our environment. Its hardly surprising that the
7、 tiny fragments have also been found in humans. A new study shows that Americans are consuming as many as 121，000 particles each year.Measuring 50 to 500 microns in length, microplastics come from a variety of sources, including large plastics that break down into smaller and smaller pieces. Therefo
8、re, much remains unknown about the common existence of these materials within the human body, as well as their impact on human health.Hoping to fill in some of these gaps, a research team led by Kieran Cox, a PhD candidate at the University of Victoria, looked at 26 papers assessing the amount of mi
9、croplastics in commonly consumed food items, among which are seafood, sugars, salts, honey, alcohol and water. The team also evaluated the potential consumption of microplastics through inhalation (吸入) using previously reported data on microplastic concentrations in the air and the Environmental Pro
10、tection Agencys reported respiration rates. Based on these data, the researchers calculated that our annual consumption of microplastics via food and drink ranges from 39，000 to 52，000 particles. When microplastics taken in through inhalation are taken into account, the range jumps to between 74，000
11、 and 121，000 particles per year.The authors of the study found that people who drink exclusively from plastic water bottles absorb an additional 90，000 microplastics each year, compared to 4，000 among those who only consume tap water. “This shows that small decisions, over the course of a year, real
12、ly matter and have an impact，” Cox says. The new study, according to its authors, was the first to investigate “the accumulative human exposure” to microplastics. But in all likelihood, the research tells only a small part of the entire story. Collectively, the food and drink that the researchers an
13、alyzed represent 15 percent of Americans caloric intake. The team could not account for food groups like fruits, vegetables and grains because there simply is not enough data on their microplastic content.For those worried about microplastic consumption, cutting down bottled water is a good place to
14、 start. But to the heart of the problem, we have to stop producing and using so much plastic.1What makes it difficult to know microplastics commonly exist in the human body?AThe quality. BThe quantity.CThe shape. DThe size.2How did Kieran Coxs team calculate the potential consumption of microplastic
15、s?ABy studying papers.BBy comparing the impacts.CBy analyzing the data.DBy conducting experiments.3Which of the following is TRUE according to the passage?ADrinking less plastic bottled water helps to take in fewer microplastics.BThe study is among the earliest to investigate human exposure to micro
16、plastics.CCoxs team gained comprehensive information of microplastics taken in by humans.DPeople consume 74，000 to 121，000 particles of microplastics per year from food and drink.4What is the best title for the passage?AThe Potential Problems of MicroplasticsBMicroplastics Coming from Various Source
17、sCMicroplastics Found Within Human BodiesDThe Impact of Microplastics on Human HealthBCaptured (捕获的) carbon dioxide(CO2) could be used to extract(提炼) useful metals(金属) from recycled technology such as smartphone batteries rather than just being buried underground. The technique could help make it mo
18、re economical to capture the greenhouse gas before it enters the atmosphere.“If you also extract metals by filling CO2, you add value to a process that is known to be costly，” says Julien Leclaire at the University of Lyon, France.CO2 is the main cause of modern climate change, so many people have a
19、ttempted to develop technologies to capture it when it comes from power plants and other major sources. The gas can then be stored underground. The problem is that such carbon capture and storage (CCS) is expensive. “No one wants to pay the price for it，” says Leclaire.To make CCS more appealing, Le
20、claires team has found a use for the gas.His team collected CO2 from a car gas, cooled it, then pumped it into a mix of chemicals. The CO2 combined with the mix to make many molecules (分子) of various shapes and sizes.The team found that this process could sort out mixtures of metals, because one met
21、al would dissolve (溶解) in the liquid while another would form a solid. In a series of experiments, they successfully separated three kinds of metalsall of which are used in batteries, smartphones and computers.If the process can be widely used, it could be a more environmentally friendly way to recy
22、cle batteries and other electrical equipment, says Leclaire. This is normally done using highly reactive chemicals, which are potentially polluting. Replacing them with CO2 should lead to a much lower environmental pollution, he says.Other researchers and companies are trying to change captured CO2
23、into useful materials like plastics, which are normally produced from petrol, but this is chemically difficult. Leclaire says his approach is more in line with how CO2 behaves naturally. “Instead of copying what we know how to do better and cheaper with oil, lets find things you can only do with CO2
24、，” he says.5What can we learn from the first paragraph?AExtracting useful metals from recycled technology is widely used now.BUseful metals in the atmosphere are used to make smartphone batteries.CAbandoned smartphone batteries may have been buried underground before.DThe greenhouse gas CO2 could be
25、 cleaned up after entering the atmosphere.6Why are many people attempting to capture CO2?ACO2 is the main cause of modern climate change.BCO2 can be used to recycle many resources.CCaptured CO2 can be changed to useful gas.DCO2 is harmful to peoples health.7What benefit could Leclaires teams approac
26、h bring?AIt could end the use of plastics.BIt could reduce environmental pollution.CIt could make more metals available to humans.DIt could help reduce the cost of battery production.8What is the best title for the passage?AThe Ways to Make Smartphone BatteriesBThe Reason for Capturing Greenhouse Ga
27、sCCollecting CO2 Is Starting to Make New ProgressDCaptured CO2 Could Be Used to Help Recycle Useful Metals.七选五Not only do smartphones provide unlimited access to information, they provide perfect opportunities to multitask (doing two unrelated things at the same time). Any activity can be accompanie
28、d by music, selfies or social media updates. Of course, some people pick improper time to text and lawmakers have stepped in. 1._ In Hawaii, its illegal to text or even look at your phone while crossing the street, and in the Netherlands theyve banned texting while biking.2_ So you need learn to sel
29、fcontrol. Understanding how the brain multitasks and why we find multitasking so appealing will help you realize the danger of pulling out your phone.Twenty states have bans on driving using a handheld phone while still allowing handsfree calls. Yet handsfree or handheld makes no difference. 3._ The
30、 real problem is the switch (切换) of attention between the conversation and road, and that affects performance.People sense this and when on the phone they drive slower and increase their following distance, but they are far too confident and think these measures reduce risks. 4._ Everyone knows text
31、ing behind the wheel is dangerous, but listening to music or chatting with a passenger seems so undemanding as to be. Yet both measurably affect driving.People multitask merely because they see no harm in it; they see benefits. 5._ Most people will still choose to multitask. But they should be fully
32、 aware of how that choice affects them and the potential consequences for themselves and others. They need to pay attention to how muchor how littlethey are paying attention.AThey multitask for efficiency, to fight boredom or to keep up with social media.BBut legislation(法律)wont ban all situations i
33、n which multitasking is unwise.CInstead of multitasking, they take more rest breaks and get a social media fix during a break.DThey damage driving process equivalently as far as external (外部的) dangers go.EHowever, texting while biking seems so undemanding as to be harmless.FFortyeight states have ba
34、nned texting while driving.GThis confidence is especially understandable for very simple tasks.语法填空As the coronavirus (冠状病毒) outbreak continues, many Americans are fearful of 1._ (use) public transportation. They also are looking for ways 2._(get) exercise without having to go to a gym, as well as w
35、ays to enjoy the outdoors. So, it may not be 3._ (surprise) that the pandemic (流行病) has led to a major increase in bicycle sales.In the United States, bicycles at big stores like Walmart have sold out. And small bicycle stores cannot keep up 4._ demand for “familystyle” bicycles：the lowcost, easytor
36、ide models. The bicycle industry is seeing its biggest sales increase since the oil crisis of the 1970s, said Jay Townley, 5._ industry expert.“People.have panicked，” Townley said. He 6._ (compare) the sale of bicycles to the rush to buy products like toilet paper at the start of the pandemic.The ri
37、se in bicycle sales is not happening just in the United States. Cities like Manila in the Philippines and Rome, Italy have created bicycle paths for the growing number of people 7._ want to avoid public transportation. In London, city 8._ (official) plan to ban cars from some central roads.Bike shop
38、 owners in Manila say demand is even 9._(strong) than what they see at Christmas time. In Italy, the governments economic support plan included a 500euro payment to help with the cost of a bicycle.Of course, you can only buy a bicycle if you can find a bicycle. In the US., the shortages now mean 10.
39、_ may take many months to get one. 答案 一词形转换和动词的形式变换(用所给词的正确形式填空)1.doing2.to_celebrate3.to_learn4.to_understand5.to_go6.trying二固定用法和搭配(在空白处填入一个适当的单词或括号内单词的正确形式)1.it2.that3.that4.it5.it6.that7.it8.when9.that10.it三完成句子/句型转换/一句多译1.thinks_it_his_duty_to_do_something2.owe_it_to_Mrs._Lee_that_all_the_children_are_well_taken_care_of3.think_it_important_for_students_to_learn4.believe_it_necessary_for_you_to_pay5.have_made_it_known_to_you_that.阅读理解A1.D 2.C 3.A 4.C 5.C 6.A 7.B 8.D .七选五1F 2B 3D 4G 5A .语法填空1using 2to get 3surprising 4with 5an 6compared 7who/that 8officials 9stronger 10it 学科网（北京）股份有限公司