1、限时规范练9(必修2Unit 4)核心素养关键词:培养学生人与自然、保护动物的思维意识一、阅读理解AWhat do you usually do when a flying insect lands on your arm? Most likely you blow it away.But what if that bug were a ladybug (瓢虫)? Then chances are you would let it stay.What is it about ladybugs that we like?Farmers once thought ladybugs were a g
2、ood luck sign.A ladybug in the field meant that the crops would be successful and the weather would be good.The farmers may have been exaggerating (夸大) about what a very small bug can do,but in fact ladybugs do help out with the crops.They eat harmful insects.Actually,it is not the adult ladybug tha
3、t eats the other insects.Its the ladybug larvae (幼虫).Ladybugs lay their eggs on leaves that are covered with aphids or other insects.When the larvae come out of the eggs,they are very hungry and will eat mites,aphids,mealybugs,green flies,and other crop-destroyers.A single ladybug larva can eat over
4、 1,000 aphids in one day.In the 1800s,ladybugs were brought all the way from Australia to California and set free among orange trees that were dying from being eaten by insects.The little red and black “eating machines” completely saved all the trees.Ladybugs go about their daily business without wo
5、rrying much about anything.Very few birds or insects will eat a ladybug because it gives off something that is dangerous to eat.Ladybugs also protect themselves by playing dead.They fall off leaves and remain very still until their enemy goes away.So next time you see a ladybug,think about what it m
6、ay be up to.Maybe it is off to save an orange tree.Maybe its next move will be to fall off a leaf and play dead or stand up to a bird about 100 times its size.Maybe its letting you know that the weather will be good tomorrow.Who knows? Ladybugs are special that way.1.What do we know about mites and
7、aphids?A.They do harm to the crops.B.They eat more than they should.C.They are food for adult ladybugs.D.They are the enemy of ladybug larvae.2.Why were ladybugs brought from Australia to California in the 1800s?A.To save orange trees.B.To do research on them.C.To increase their number.D.To report t
8、he weather for farmers.3.What does the underlined part “stand up to” in the last paragraph probably mean?A.Play with.B.Worry about.C.Get along with.D.Fight back against.BTwo books have been developed to help designers,developers and homeowners make it easier and safer for the blind to find their way
9、 to,into and through buildings and large public spaces.The books were created by the Cooperative Research Centre for Construction Innovation (建筑创新),a programme which helps solve the problem of finding ways around buildings and public spaces.Construction Innovation CEO Keith Hampson says any wayfindi
10、ng system is more than just signs.“It includes buildings,inside design and lighting,” Keith says.He says people having problems with their eyesight use these communicative signs to make moving around spaces easier.For example,a good sign may include tactile (可感触到的) lettering Braille and a tactile gr
11、ound surface.The project won the 2007 Disability Action Week Award for Building Accessible Housing and Environments.“The project has received increased national attention since the award last year,” Keith says.“Most importantly however,we have helped to raise the awareness and need for a wayfinding
12、system across the building and construction industry.”The Department of Public Works was a key member in the project.Team leader Ron Apelt says people with eyesight problems are often forgotten in the planning and design of buildings and public open spaces.“Our books are mainly for new buildings and
13、 the immediate spaces surrounding these buildings,” Ron says.“However,the books can also be used for any plans for old buildings and improving wayfinding around places such as universities,hospitals and schools.”“They can also be used in busy spaces like shopping centres as the design ideas remain u
14、nchanged no matter what the spaces and places are like.”4.What are the books mentioned in the text about?A.How to improve eyesight.B.How to build high-quality houses.C.How to make buildings blind-friendly.D.How to develop a good sense of direction.5.What does the wayfinding system include according
15、to Keith?A.A flat ground surface.B.Signs that can be touched.C.Spaces that are wide enough.D.Lighting thats not too strong.6.What has happened since the project won the award?A.More blind people are getting help.B.More people are trying to win the award.C.More people are realising the systems import
16、ance.D.More people are interested in the construction industry.7.What does Ron think of the books?A.They are of little real use.B.They will never be forgotten.C.They came as no surprise to the public.D.They will make a good guide for builders.二、七选五Deciding whether or not to take part in an extracurr
17、icular (课外的) activity can be a challenge.Before signing up to play on the volleyball team,first consider the advantages and disadvantages of such a decision.1 Students are successful when they take part in many activities.They do well in their classes and feel more connected to school.Research shows
18、 that students in extracurricular activities have better attendance and grades.Extracurricular activities also help students make new friends and lasting relationships.2Even though we became friends a long time ago,we are still close today.While these activities have many advantages,students should
19、consider the downside as well.3 Extracurricular activities can be too much for students who do not practice good time management.Students need to be good at managing their time between different activities.Another downside to extracurricular activities involves transportation.4 This situation limits
20、 students extracurricular choices to those outside the school and closer to home.A few of my classmates joined the schools cultural club.They later discovered that it met after school.These students dropped out of the club because they had to catch their buses.Only you can decide if extracurricular
21、activities are right for you.Activities outside the school can help you succeed in many areas of your life.5 Are you up for a challenge?A.We were both in the eight-and-under age group.B.Some clubs or sports meet before or after school.C.One downside is that it can create a busy life for students.D.M
22、any students are tired from all the things they have to do.E.Taking part in extracurricular activities has many advantages.F.I met my best friend when we were on the YMCA swim team.G.However,you need good time management skills to deal with a busy life.三、语法填空The jaguar (美洲豹) is the largest cat in th
23、e Americas.A hundred years ago,jaguars 1. (find) everywhere from the southwestern United States to Argentina,in South America.Today,jaguars are an endangered species throughout their 2. (nature) habitat and have been lost from 50 percent of their territory.Today they live 3. (most) in the Amazon rai
24、nforest.And jaguars arent the only animals losing their homes according 4. the International Union for Conservation of Nature,habitat loss 5. (be) the main threat to about 85 percent of all endangered plant and animal species.Tropical rainforests cover only about 7 percent of Earths land,but theyre
25、home to about half of all known plant and animal species.Most 6. (scientist) agree that about 80,000 acres (an acre is equal to 4,047 square metres) disappear every day when trees are cut down and land is cleared for farms.Trees also play 7. important role in climate change.Fewer forests mean that m
26、ore greenhouse gases remain 8. (trap) in the atmosphere,the mixture of gases that surrounds the Earth.Grasslands,underwater habitats,and wetlands are also at risk.For example,the World Wildlife Fund reports that about half of the worlds wetlands 9. (disappear) since a hundred years ago as a result o
27、f being drained (排水) for either farmland 10. other industries.That means less space for animals to feed and raise their young.参考答案限时规范练9(必修2Unit 4)一、【篇章导读】本文是说明文。文章是对瓢虫的介绍。瓢虫是一种能够吃害虫的昆虫,它们对于庄稼来说是得力的助手。1.A推理判断题。由第三段中的“they are very hungry and will eat mites,aphids,mealybugs,green flies,and other crop
28、-destroyers”可知,这些都是对庄稼有害的虫子。2.A细节理解题。由第四段中的“ladybugs were brought.set free among orange trees that were dying from being eaten by insects”可知,19世纪瓢虫被从澳大利亚引进到美国加利福尼亚州是为了挽救被害虫侵害的橘子树。3.D词义猜测题。由倒数第二段中的“Very few birds or insects will eat a ladybug because it gives off something that is dangerous to eat.”可
29、知,很少有鸟或昆虫吃瓢虫。再由画线部分后的“a bird about 100 times its size”可知,当遇见比它大的鸟时,瓢虫会释放某种物质从而对鸟造成威胁。故此处的stand up to有“回击,抵御”之意。【篇章导读】本文是说明文。文章介绍了一项帮助盲人识别道路、进出大楼和公共场所等的项目。4.C细节理解题。由第一段中的“make it easier and safer for the blind to find their way to,into and through buildings and large public spaces”可知,这两本书指导人们如何将建筑物建造
30、得方便盲人出入。5.B细节理解题。由第三段中的“For example,a good sign may include tactile lettering Braille”可知,这个系统包括可触摸的标识。6.C细节理解题。由第四段中的“Most importantly however,we have helped to raise the awareness and need for a way finding system across the building and construction industry.”可知,获奖使得更多人意识到这一系统的重要性。7.D推理判断题。由最后两段中提
31、到的这两本书在不同地方的可参考性可以推断,Ron认为这两本书是很好的指南类书籍。二、【篇章导读】本文是议论文。要不要参加课外活动对于许多学生来说是个需要权衡利弊的问题。1.E本空为本段的主题句,本段主要阐述了参加课外活动的学生们在学习方面表现更突出,即参加课外活动的好处。2.F本空是对前一句的举例说明,且下一句中的we became friends与F项中的I met my best friend在语意上相关。3.C由本空前一句可知,本段开始阐述参加课外活动的弊端;而本空后面的内容是对本空的进一步解释说明,阐述的是其中一个弊端,即让学生们更繁忙。4.BB项内容与下一句形成因果关系,本空后面的T
32、his situation指代B项内容。5.G本空前一句与G项内容形成转折关系,即课外活动虽有好处,但学生们需要恰当巧妙地安排时间,以应对繁忙的生活。三、1.were found考查一般过去时的被动语态。设空处所在句意为“一百多年前,从美国的西南部到阿根廷都能发现美洲豹的踪影”,故find与jaguars之间是被动关系,应用被动语态,且由A hundred years ago可知,此处应用一般过去时,故填were found。2.natural考查形容词做定语的用法。设空处做定语修饰habitat,表示“自然的”,故填形容词natural。3.mostly考查副词。设空处做状语修饰谓语动词li
33、ve,表示“主要地”,故填副词mostly。4.to考查介词。according to 意为“按照,根据所说”。5.is考查主谓一致。设空处所在句描述现在的情况,应用一般现在时,因为主语是habitat loss,故填is。6.scientists考查名词复数。设空处做主语,表示“科学家”,因为scientist是可数名词,由Most及谓语动词agree可知,此处应填scientists。7.an考查不定冠词。设空处所在句意为“树木在影响气候变化方面起着重要作用”,故填an。play an important role in.“在方面起重要作用”。8.trapped考查过去分词做表语的用法。设空处所在句意为“森林面积的减少意味着越来越多的温室气体停留在大气层里”,trap与greenhouse gases之间是被动关系,故填过去分词trapped。9.have disappeared考查现在完成时。由since a hundred years ago可知,此处应用现在完成时,因为主语是half of the worlds wetlands,故填have disappeared。10.or考查连词。either.or.“或者或者”。