2021高考英语一轮复习Unit2Workingtheland课时训练新人教版必修4.doc

1、 - 1 - Unit 2Unit 2 Working the landWorking the land .阅读理解 A A 2020沈阳市高三教学质量监测(三)China is a large producer and consumer of rice. But, as a result of climate change, the amount of land available for rice growing in the country is shrinking. The concern has motivated scientists led by Yuan Longping, k

2、nown as “the father of hybrid rice”， to look for new ways of growing the grain. Now theyre celebrating successful efforts to grow rice in sand and seawater. Rice is traditionally grown in soil and fresh water. Starting from January, according to the official Xinhua News Agency, the scientists have g

3、rown dozens of varieties of rice in the deserts of Dubai. They experimented with seawater because it is easier to obtain in the desert than fresh water. China is not the only country facing the issue of overly salty soil. Around the world, there are around 2.35 billion acres of highly saline(含盐的) la

4、nd. And the number is increasing because of rising sea levels and climate change. “Probably only a small part of the worlds saline land could be brought into production with seawater rice, but that would still have a very important effect on food security，”Even R. Pay, a senior analyst, said. Yuan t

5、old Xinhua that one of the varieties of rice grown in Dubai produced over three tons, per acre, which Yuan said was beyond expectations. Rice is the basic food in many parts of the world. About 90% of rice consumption is from Asia, but demand in Africa and Latin America is on the rise. A climate cha

6、nge researcher said the successful experiment could potentially benefit many countries. “This is a fantastic development, which is likely to have a good effect on agricultural resource and waterpoor countries, particularly in North Africa region.” Even though the cost of growing salttolerant rice is

7、 still high, it will also have strategic value once its commercialized. 1What has caused the scientists to find new ways of growing rice? AThe increase of rice consumers. BThe high cost of rice producing. CThe land shortage of rice growing. - 2 - DThe severe pollution of fresh water. 2Yuans team hav

8、e successfully grown rice in sand and seawater in _. AChina BDubai CLatin America DNorth Africa 3What can be inferred from the text? AAbout 90% of the rice is demanded and consumed in China. BThe production of a new type of rice is larger than expected. CThe increase of saline land is mainly caused

9、by climate change. DSeawater is used in the experiment because it is cheaper to gain. 4What is the authors attitude to the ricegrowing experiment? ADoubtful. BPositive. CCritical. DDisappointed. B B 2020辽宁省五校协作体高三上学期联考In a longsleeved shirt and jeans, Dieudonne Twahirwa looks nothing like the tradit

10、ional African farmer. The 30year old owner of Gashora Farm knows what a difference that makes. “You need more role models，” he said, standing among kneehigh rows of chilli (辣椒) plants. “If you have young farmers, they have land and they drive to the farm, others may think，Why cant I do that？” Mr. Tw

11、ahirwa, a university graduate, bought a friends tomato farm six years ago for $150. He made $1,500 back in two months.“You have to link farming with entrepreneurship and real numbers，” he said. Many young Africans are abandoning areas in the countryside, choosing not to work hard and for a long time

12、 in the fields a job made tougher by climate change. But Twahirwa is one of the growing band of successful farmers working to make agricultures image on the continent more attractive. Some 1,000 farmers now produce chillies for him. He is starting a fourth farm of his own, and exports fresh and drie

13、d chillies and oil to Britain, the United States, India, and Kenya. Africa has the worlds youngest population and 65 percent of its uncultivated arable land(耕地后备资源). Yet accessing land and loans is difficult, and African productivity is low with crop yields just 56 percent of the international avera

14、ge. “Agriculture is mainly associated with suffering and no young person wants to suffer，” said Tamara Kaunda. She believes African agriculture needs a change - 3 - to get rid of its oldfashioned image of very hard and tiring work with a hoe. “Show young people tractors, green fields, nice irrigatio

15、n systems and smartphones，” she said. Getting young people involved in agriculture does not mean they have to work on a farm. For example, in coffee production, the beans go from the farm to the washing station, then to be separated from the husks(外壳) 5What does “Why cant I do that？” in Paragraph 2

16、mean? AWhy cant I drive to the farm? BWhy cant they farm? CThey follow the example of those farmers. DThey bought a friends tomato farm. 6What makes it harder for farmers to work? APoor land. BClimate. CLow income. DLong working hours. 7What can we learn about Twahirwa according to Paragraph 5? AHe

17、made a fortune by growing chillies. BHis chillies are superb in the world. CFarmers working for him live a simple life. DThe locals arent willing to buy his chillies. 8When it comes to agriculture in Africa, what do people think about it? ALoans are difficult. BMost land is uncultivated. CCrop yield

18、s are rather low. DFarming methods are out of date. .七选五 2020西安五校联考After a long day at work, coming home is a breath of fresh air. Home is a comfortable place to sit back and relax. _1_ Below are a number of things we can do to create a healthy home environment that will help to ease the workday str

19、ess and promote our physical and mental health. Cleaning the house regularly is the first thing we should do. It may seem like a tiring thing to clean but there is a reason for doing so. We can remove dust by cleaning the house. Leaving layers of dust everywhere means that there is a build up of dus

20、t. And where do these layers of dust go? _2_ Making sure the rooms are full of sunlight is also important. We may not realize - 4 - it but sunlight is an important part of our growth. We all know that sunlight promotes better working conditions. _3_ Think about using a Parans system where sunlight d

21、oes not reach. This technology gathers the sunlight by using solar panels(板). It can send out sunlight wherever we are. _4_ Going green will help to remove toxins(毒素) in the air. They also give off oxygen, which can lower stress and improve our moods. Along the lines of being green, it can also be v

22、ital to think about what things we are bringing into the house. Try to avoid specific plastics that are harmful to health. _5_ They may contain poisonous chemicals that can be breathed in, or simply absorbed through the skin. AInto our lungs. BHowever, is it as healthy as it can be? CIs our home as

23、comfortable as it used to be? DThe same thing applies to certain carpets and paint. EIt is also a good idea to add more plants in our house. FBesides, it can reduce both stress and high blood pressure. GIt is acknowledged that a greener lifestyle is linked to better health. .语法填空 2020郑州高三第一次质量预测Chin

24、ese researchers have 1._ (successful) grown and harvested rice in the deserts of Dubai after developing a strain (品种) which 2._ (allow) the crop to grow in salt water. A team of scientists, 3._ (lead) by Chinas “Father of Hybrid Rice”， Yuan Longping, have already started growing the crop in dilute (

25、稀释的) seawater at home and are now bringing the technique to the Middle East. The big harvest of rice last year in the suburbs of Dubai far exceeded scientists expectations, according to a report by Xinhua News Agency. The high output 7,500 kilograms per hectare compared with the 4._ (globe) average

26、of 3,000 kilograms per hectare has encouraged scientists to expand the project. They 5._ (plan) to set up a 100hectare experimental farm in Dubai later last year. They will put it into regular use this year and then start expanding after 2020. The Dubai project is cooperation between Chinas Sea Rice

27、 Research and Development Center with the Private Office of Sheikh Saeed Bin Ahmed Al Maktoum. The two parties have signed an 6._ (agree) to promote seawater rice across the area to reduce the risk of food shortages in the future. - 5 - While scientists in some countries 7._ water shortages are a se

28、rious concern have been developing desalination (脱盐) techniques to change seawater for use in agriculture, China has been working 8._ (develop) strains of salt tolerant rice for the past four decades. Although 9._ is not yet clear how the Dubai project will be able to secure enough fresh water to di

29、lute seawater 10._ largescale rice planting, Chinese scientists have already started growing it closer to home on a commercial scale. 课时作业课时作业( (十七十七) ) .阅读理解 A A 体裁：说明文 题材：科学研究 主题：寻找种植水稻的新方法 【语篇解读】 本文主要介绍了在“杂交水稻之父”袁隆平带领下的科学家们进行了在 沙子和海水中种植水稻的试验。 1C 考查细节理解。根据第一段第二、三句“But, as a result of climate chang

30、e. to look for new ways of growing the grain”可知，能种植水稻的土地短缺促使科学家们 去寻找种植水稻的新方法。 2B 考查细节理解。根据第二段中的“Starting from January. have grown dozens of varieties of rice in the deserts of Dubai”和第五段中的“one of the varieties of rice grown in Dubai”可知，Yuan 的团队在迪拜成功地在沙子和海水中种植了水稻。 3B 考查推理判断。根据第五段中的“one of the varieti

31、es of rice grown in Dubai produced over three tons, per acre, which Yuan said was beyond expectations”可 知，其中一种在迪拜种植的水稻产量为每英亩三吨多，这超出了人们的预料，故选 B。 4B 考查推理判断。根据最后一段“Even though the cost of growing salttolerant rice is still high, it will also have strategic value once its commercialized” 可推知，作者对这种水稻种植的试

32、验持乐观的态度。 B B 体裁：说明文 主题语境：人与社会社会发展非洲农业 【语篇解读】 非洲青年 Dieudonne Twahirwa 从事农业生产，他通过自己的努力，获 得了巨大的回报。非洲有世界上最年轻的人群与大量的耕地后备资源，但是由于气候与农业 技术的落后，很多年轻人都不愿意从事农业，Dieudonne Twahirwa 则为非洲青年树立了榜样。 5C 考查句意理解。根据第二段中的“If you have young farmers，they have land and they drive to the farm, others may think，Why cant I do th

33、at？”可知，此 - 6 - 处表示如果你有年轻的农民，他们有土地，而且开车去农场，其他人可能会想，为什么“我” 不能那样做？该句意在表明其他人认为他们可以效仿这些农民的做法。故选 C。 6B 考查细节理解。根据第四段“Many young Africans are abandoning areas in the countryside. a job made tougher by climate change”可知，在非洲，让农民的 劳动难度更大的原因在于气候变化。故选 B。 7 A 考查推理判断。 根据第五段中的“Some 1,000 farmers now produce chilies

34、 for him.He is starting a fourth farm of his own”可推知，Twahirwa 通过种植红辣椒赚了很 多钱。故选 A。B 项中的 superb 意为“质量极高的”。 8D 考查推理判断。根据第七段中的“African agriculture needs a change to get rid of its oldfashioned image of very hard and tiring work with a hoe”可知，非 洲农业需要改变，以摆脱其传统的形象：使用锄头的非常辛苦和累人的工作。由此可推知， 当谈及非洲的农业时，人们想到的是落后的

35、耕作方法。故选 D。A、B、C 三项均为非洲农业的 实际情况，不是人们对其的看法。 .七选五 【语篇解读】 本文为说明文。作者就如何营造一个“健康之家”提出了几条建议。 1B 此处需要一个承上启下的过渡句，引出“健康之家”的概念，也引出下文提到的 如何营造“健康之家”。故 B 项最佳。 2A 空前是一个问句，A 项“进入了我们的肺”能恰当地回答前面的问句“这层层的 灰尘去了哪儿？”，前呼后应，故最佳。 3F 空前主要在讲阳光的好处，F 项“此外，它(阳光)还能减轻压力和缓解高血压” 与此相关。 4E 此处需要一个段落主旨句。Going green 是一个关键的信息词，且空后提到消除 空气中的毒

36、素，释放氧气，故可判断本段主要讲室内的绿化问题，且 E 项中的 plants 正是此 段最后一句中 They 的指代对象。故选 E 项。 5D 空处前一句讲到“有害塑料”问题，又 D 项讲到某些地毯和油漆，根据常识可知 地毯和油漆可能会含有有害健康的化学物质，与语境符合，故选 D 项。 .语法填空 体裁：说明文 题材：农业科技 主题：用海水种植水稻 【语篇解读】 中国的研究人员在迪拜已成功种植并收获了一种用海水种植的水稻。 1successfully 考查副词。修饰动词用副词，根据空后的“grown and harvested” 可知，此处应用副词 successfully。 2allows

37、考查时态和主谓一致。根据语境可知，此处叙述一般的情况，故应用一般 现在时；空前的“which”引导的是定语从句，which 在从句中作主语，指代先行词 a strain， 为第三人称单数，故填 allows。 - 7 - 3led 考查非谓语动词。分析句子结构可知，动词 lead 和其逻辑主语 A team of scientists 之间为动宾关系，故此处应用过去分词短语作后置定语。 4global 考查形容词。根据空前的“the”和空后的“average”可知，此处应用形 容词 global 作名词 average 的定语。 5planned 考查动词的时态。根据本句中的“later la

38、st year”可知，此处应用一 般过去时，表示发生在过去的动作。 6agreement 考查词形转换。根据语境以及空前的“an”可知，此处应用 agree 的名 词形式 agreement。 7where 考查定语从句。分析句子结构可知，空处引导定语从句，修饰先行词 countries，关系词在从句中作地点状语，所以此处应用 where 来引导该从句。 8to develop 考查非谓语动词。根据语境可知，过去四十年，中国一直致力于开发 抗盐的水稻，此处表示目的，故填 to develop。 9it 考查代词。分析句子结构可知，此处应用 it 作形式主语，how 引导的从句作真 正的主语。 10for 考查介词。根据语境可知，此处表示稀释海水是为了大规模种植水稻，故用 介词 for“为了”。