Unit 3 Section Ⅳ Grammar课时基础巩固&综合提升 （2020）新北师大版高中英语选择性必修第一册.doc

1、Unit 3-Section Grammar课时基础巩固课时基础巩固&综合提升综合提升【基础巩固】【基础巩固】用适当的引导词或介词填空1.We wrote a letter to our father,telling him all the thingswe wanted.2.Light is the fast thing in the world,the speedwhich is 300,000kilometres per second.3.The two brothers were satisfied with this decision,was agreedbeforehand.4.H

2、e came out of the spaceship,smiling and waving to the crowdswere waiting for him.5.The play,style is rigidly formal,is typical of the period.6.When deeply absorbed in work,he often was,he would forget allabout eating and sleeping.7.We have only told peoplework is relevant to the project.8.There are

3、30 chairs in the small hall,most ofare new.9.This is the yearprofit should increase.10.There are peoplewhom Catherine was referring.1.that2.of3.as4.who/that5.whose6.which7.whose8.which9.when10.to把下列句子改写成含非限制性定语从句的复合句1.About 2,000 people worked on the project.Many of them were Europeans.2.My father w

4、orks in the post office.He likes listening to classical music.3.The southern states wanted to set up a country of their own.They would be free tokeep black slaves there.4.In his office there are nine clerks.The youngest of them is Mr Wang.5.I wish to thank Professor Smith.Without his help I would ne

5、ver pass the exam.1.About 2,000 people,many of whom were Europeans,worked on the project.2.My father,who likes listening to classical music,works in the post office.3.The southern states wanted to set up a country of their own,where they would befree to keep black slaves.4.In his office there are ni

6、ne clerks,the youngest of whom is Mr Wang.5.I wish to thank Professor Smith,without whose help I would never pass the exam.【综合提升】【综合提升】语篇填空Nowadays,our living conditions are becoming increasingly serious owing to thedestruction of our environment.Many plants and 1.(animal) areendangered,and all the

7、food chain has been destroyed,2.has aroused awide concern among people.Itisobviousthattherearemanyreasons3.thisphenomenon.Firstly,the overuse of natural resources has a bad effect on 4.balance of natural ecology.Secondly,the population of the world is increasingrapidly,making the world too 5.(crowd)

8、 for us to live in.Thirdly,it isthe smoke released from factories and cars that 6.(pollute) theenvironment badly.Personally,Iholdtheviewthateffectivemeasuresmustbetaken7.(improve)thepresentsituation.Tobeginwith,thegovernmentmust8.(sure) pass laws to prevent people from throwing rubbish everywhere,an

9、d preventfactories from harming the environment.Besides,as a member of the society,we arebound to do something for environmental 9.(protect),such asplanting more trees,10.(recycle) natural resources and so on.Im surethat things will be better in the near future if we insist on doing like this.1.anim

10、als2.which3.for4.the5.crowded6.pollutes7.to improve8.surely9.protection10.recycling七选五Are we aware in protecting the environment?1Lets take a review of howimportant environment is and how to protect it.2There are many organisations,at a local,national and international level devotedto the environmen

11、tal protection.Together they form the Green Movement.Whenever a habitat is threatened(威胁) by industry or development,the GreenMovement takes the side of the environment.These groups already enjoy considerablepublic support.3Unless people understand how threats to the environment affectthem,they cann

12、ot see the importance of environmental protection.Encourage organic(有机的) farming.Farmingwithoutchemicalsisknownasorganicfarming.Inseveralcountries,organic produce has become very popular.Because no chemicals are used togrow the food,there are none to enter the human food chain.4Save the Rainforest.I

13、n developing countries,action is finally being taken to save the rainforests.InAfrica,the Ivory Coast recently banned all timber exports.In Central America,thegovernment of Panama made it illegal to cut down any tree more than five years old.5As everybody knows,timber exports have been a major sourc

14、e of income forthem.It is difficult to persuade poor people in developing countries of the importanceof saving the forests.They need more food and want to use the land to grow cropson.What matters is not just our enjoyment of nature,but the future of life on Earth.A.But their most important work is

15、education.B.Is there anything we can do about it?C.Why are people determined to take actions?D.Join the Green Movement.E.Such actions show great determination.F.Found organisations to protect our environment.G.In addition,people think it will save the environment.15 BDAGE阅读理解AThe African elephant,th

16、e largest land animal remaining on Earth,is of greatimportance to African ecosystem( 生 态 系 统 ).Unlike other animals,the Africanelephant is to a great extent the builder of its environment.As a big plant-eater,itlargely shapes the forest-and-savanna( 稀 树 草 原 ) surroundings in which itlives,therefore

17、setting the terms of existence for millions of other animals that live inits habitat.It is the elephants great desire for food that makes it a disturber of theenvironment and an important builder of its habitat.In its continuous search for the300 pounds of plants it must have every day,it kills smal

18、l trees and underbrushes,andpulls branches off big trees.This results in numerous open spaces in both deep tropicalforests and in the woodlands that cover part of the African savannas.In these openspaces are numerous plants in various stages of growth that attract a variety of otherplant-eaters.Take

19、 the rain forests for example.In their natural state,the spreading branchesoverhead shut out sunlight and prevent the growth of plants on the forest floor.Bypulling down trees and eating plants,elephants make open spaces,allowing new plantsto grow on the forest floor.In such situations,the forests b

20、ecome suitable for largehoofed plant-eaters to move around and for small plant-eaters to get their food aswell.What worries scientists now is that the African elephant has become anendangered species.If the elephant disappears,scientists say,many other animals willalso disappear from vast areas of f

21、orest and savanna,greatly changing and worseningthe whole ecosystem.1.What is the passage mainly about?A.Disappearance ofAfrican elephants.B.Forests and savannas as habitats forAfrican elephants.C.The effect ofAfrican elephantssearch for food.D.The eating habit ofAfrican elephants.2.What does the un

22、derlined phrase “setting the terms” most probably mean?A.Fixing the time.B.Worsening the state.C.Improving the quality.D.Deciding the conditions.3.What do we know about the open spaces in the passage?A.They result from the destruction of rain forests.B.They provide food mainly for African elephants.

23、C.They are home to many endangered animals.D.They are attractive to plant-eating animals of different kinds.4.According to the passage,which of the following statements is TRUE?A.TheAfrican elephant is the largest animal on Earth.B.African elephants have 300 pounds of plants every day,including smal

24、l trees andunderbrushes.C.The African elephant is in a way the builder of the environment like other landanimals.D.If theAfrican elephant disappears,the whole ecosystem wont be affected.BBy the end of the century,if not sooner,the worlds oceans will be bluer andgreener thanks to a warming climate,ac

25、cording to a new study.At the heart of the phenomenon lie tiny marine microorganisms(海洋微生物)called phytoplankton.Because of the way light reflects off the organisms,thesephytoplankton create colourful patterns at the ocean surface.Ocean colour varies fromgreen to blue,depending on the type and concen

26、tration of phytoplankton.Climatechange will fuel the growth of phytoplankton in some areas,while reducing it in otherspots,leading to changes in the oceans appearance.Phytoplankton live at the ocean surface,where they pull carbon dioxide(二氧化碳)into the ocean while giving off oxygen.When these organis

27、ms die,they bury carbonin the deep ocean,an important process that helps to regulate the global climate.Butphytoplankton are vulnerable to the oceans warming trend.Warming changes keycharacteristics of the ocean and can affect phytoplankton growth,since they need notonly sunlight and carbon dioxide

28、to grow, but also nutrients.StephanieDutkiewicz,ascientistinMITsCentreforGlobalChangeScience,built a climate model that projects changes to the oceans throughout thecentury.In a world that warms up by 3,it found that multiple changes to the colourof the oceans would occur.The model projects that cur

29、rently blue areas with littlephytoplankton could become even bluer.But in some waters,such as those of theArctic,a warming will make conditions riper for phytoplankton,and these areas willturn greener.“Not only are the quantities of phytoplankton in the ocean changing,”shesaid,“but the type of phyto

30、plankton is changing.”And why does that matter?Phytoplankton are the base of the food web.If certainkinds begin to disappear from the ocean,Dutkiewicz said,“it will change the type offish that will be able to survive.”Those kinds of changes could affect the food chain.Whatever colour changes the oce

31、an experiences in the coming decades willprobablybetoogradualandunnoticeable,buttheycouldmeansignificantchanges.“Itll be a while before we can statistically show that the changes arehappening because of climate change,”Dutkiewicz said,“but the change in the colourof the ocean will be one of the earl

32、y warning signals that we really have changed ourplanet.”5.What are the first two paragraphs mainly about?A.The various patterns at the ocean surface.B.The cause of the changes in ocean colour.C.The way light reflects off marine organisms.D.The efforts to fuel the growth of phytoplankton.6.What does

33、 the underlined word“vulnerable” in Paragraph 3 probably mean?A.Sensitive.B.Beneficial.C.Significant.D.Unnoticeable.7.What can we learn from the passage?A.Phytoplankton play a declining role in the marine ecosystem.B.Dutkiewiczs model aims to project phytoplankton changes.C.Phytoplankton have been u

34、sed to control global climate.D.Oceans with more phytoplankton may appear greener.8.What is the main purpose of the passage?A.To assess the consequences of ocean colour changes.B.To analyse the composition of the ocean food chain.C.To explain the effects of climate change on oceans.D.To introduce a new method to study phytoplankton.1-4CDDB6-10BADC