Bài tập Unit 10 môn Tiếng Anh Lớp 12

ENDANGERED SPECIES
TEST 1
Choose the word which is stressed differently from the rest.
a. temperature 	b. serious 	c. awareness 	d. chemical
a. ability	 	b. agriculture 	c. development d. contaminate
a. government 	b. agency 	c. benefit 	d. diversity
a. disappearance 	b. vulnerable 	c. conservation 	d. generation
a. current 	b. global 	c. crisis 	d. mankind
Choose a, b, c, or d that best completes each unfinished sentence, substitutes the underlined part, or has a close meaning to the original one.
_______ is a branch of Natural Science, and is the study of living organisms and how they interact with their environment.
a. Biology 	b. Biological 	c. Biologist 	d. Biologically
A / an _______ species is a population of an organism which is at risk of becoming extinct.
a. dangerous 	b. endanger 	c. endangered d. endangerment
Only a few of the many species at risk of extinction actually make it to the lists and obtain legal _______.
a. protect 	b. protection 	c. protective 	d. protector
Probability of extinction depends _______ both the population size and fine details of the population demography.
a. on 	b. in 	c. from	 	d. for
Many modern medicines are derived _______ plants and animals.
a. on 	b. for 	c. from 	d. in
15,589 species (7,266 animal species and 8,323 plant species) are now considered _______ risk _______ extinction.
a. at / of 	b. on / in 	c. for / with 	d. in / at
Internationally, 189 countries have signed _______ accord agreeing to create Biodiversity Action Plans to protect endangered and other threatened species.
a. a 	b. an 	c. the 	d. Ø
Known worldwide by its panda logo, World Wildlife Fund (WWF) is dedicated to protecting _______ world's wildlife and the rich biological diversity that we all need to survive.
a. a 	b. an 	c. the 	d. Ø
WWF is _______ leading privately supported international conservation organization in the world, and has sponsored more than 2,000 projects in 116 countries.
a. a 	b. an 	c. the 	d. Ø
Many nations have laws offering protection to these species, such as forbidding hunting, restricting land development or creating _______.
a. agencies 	b. reserves 	c. awareness 	d. challenges
Being listed as an endangered species can have negative effect since it could make a species more desirable for collectors and poachers.
a. awareness 	b. preservation 	c. support 	d. impact
World Wide Fund for Nature was formed to do the mission of the preservation of biological diversity, sustainable use of natural resources, and the reduction of pollution and wasteful consumption.
a. contamination 	b. energy 	c. extinction 	d. development
The Bali Tiger was declared extinct in 1937 due to hunting and habitat loss.
a. reserve 	b. generation 	c. natural environment d. diversity
It is found that endangered species are often concentrated in areas that are poor and densely populated, such as much of Asia and Africa.
a. disappeared 	b. increased 	c. threatened 	d. reduced
_______ is the existence of a wide variety of plant and animal species living in their natural environment. .
a. Biodiversity 	b. Conservation 	c. Globe 	d. Individual
She ___ be ill. I have just seen her playing basket ball in the school yard.
a. needn't 	b. shouldn't 	c. mustn't 	d. can't 
Hiking the trail to the peak _______ be dangerous if you are not well prepared for dramatic weather changes. You _______ research the route a little more before you attempt the ascent.
a. might / can 	b. may / mustn't 	c. can / should d. must / needn't
Peter has been working for 10 hours. He _______ be very tired now.
a. needn't 	b. must 	c. has to 	d. should
He is unreliable. What he says _______ be believed.
a. cannot 	b. must not 	c. may not 	d. might not
I _______ find my own way there. You _______ wait for me.
a. should / can't b. have to / must c. can / needn't d. might / mustn't
I was reading the book last night before I went to bed. I never took it out of this room. It ____ be lying around here somewhere. Where ___ it be?
a. might / needn't 	b. can / should 	c. shouldn't / may 	d. must / can
When you have a small child in the house, you _______ leave small objects lying around. Such objects _______ be swallowed, causing serious injury or even death.
a. should / must 	b. should not / might 
c. needn't / may 	d. mustn't / can't
Frank's wallet is lying on the coffee table. He _______ it here last night.
a. must have left 	b. should have left 
c. must be leaving 	d. needn't leave
Jenny's engagement ring was precious! It _______ have cost a fortune.
a. must 	b. should 	c. can 	d. needn't
You _______ take your umbrella along with you today. It _______ rain later on this afternoon.
a. ought to / mustn't 	b. needn't / will
c. will / must 	d. should / might
Error Identification.
Species become extinct or endangerment for a number of reasons, but 
 A B
the primary cause is the destruction of habitat by human activities.
 C D
Although species evolve differently, most of them adapt to a specific 
 A B 
habitat or environment that best meets their survive needs. 
 C D
Without the particularly habitat, the species could not survive.
 A B C D
Such human activities as pollution, drainage of wetlands, cutting and 
 A B 
clearing of forests, urbanization, and road and dam construction has 
 D C 
destroyed or :seriously damaged available habitats.
Habitat fragmentation have caused plant and animal species in the 
 A B C
remaining islands of habitat to lose contact with others of their own kind.
 D
Read the passage carefully and choose the correct answer.
Species that belong to an area are said to be native species. Typically, they have been part of a given biological landscape for a long period, and they are well adapted to the local environment and to the presence of other native species in the same general habitat. Exotic species are interlopers, foreign elements introduced intentionally or accidentally into new settings through human activities. In one context an introduced species may cause no obvious problems and may, over time, be regarded as being just as "natural" as any native species in the same habitat. In another context, exotics may seriously disrupt delicate ecological balances and create a cascade of unintended consequences. The worst of these unintended consequences arise when introduced species put native species in destruction by preying on them, altering their habitats, or out-competing them in the struggle for food resources. Although biological introductions have affected environments the world over, the most destructive, effects have occurred on islands, where introduced insects, cats, pigs, rats, mongooses, and other nonnative species have caused the grave endangerment or outright extinction of literally hundreds of species during the past 500 years.
One of other reason to cause species extinction is overexploitation. This word refers to the utilization of a species at a rate that is likely to cause its extreme endangerment or outright extinction. Among many examples of severe overexploitation, the case of the great whales stands out in special relief. By the middle of the 20th century, unrestricted whaling had brought many species of whales to incredibly low population sizes. In response to public pressure, in 1982 a number of nations, including the USA, agreed to an international moratorium on whaling. As a direct result, some whale species which are thought to have been on extinction's doorstep 25 years ago have made amazing comebacks, such as grey whales in the western Pacific. Others remain at great risk. Many other species, however, continue to suffer high rates of exploitation because of the trade in animal parts. Currently, the demand for animal parts is centered in several parts of Asia where there. is a strong market for traditional medicines made from items like tiger bone and rhino horn.
Native species _______.
a. are not used to the local environment
b. never get along well with other native species in the same environment
c. tend to do harm to exotic species
d. have been part of a given biological landscape for a long period
Exotic species _______.
a. do no harm to native species and the local environment
b. may kill native species for food
c. always share the environment peacefully with native species
d. help to make the local environment more ideal to survive
According to the first paragraph, _______.
a. non-native species have caused badly damage to native ones
b. introducing new exotic species to local environments is necessary
c. exotic species have never been introduced on islands
d. very few native species have been damaged by exotic species
According to the second paragraph, by the middle of the 20 century ___.
a. whale population was the most crowded in marine life
b. whale hunting was illegal
c. whale population increased dramatically
d. whaling was not restricted
Tiger bone and rhino horn _______.
a. are not popular in Asian markets 
b. are never in the trade of animal parts
c. are used for making traditional medicines 
d. cannot be found in Asian markets
Fill in each numbered blank with one suitable word or phrase.
The World Wide Fund for Nature (WWF) is an international (41) _____- governmental organization for the (42) _____, research, and restoration of the environment. The organization was (43) _____ as a charitable trust on September 11, 1961, in Morges, Switzerland, under the name World Wildlife Fund. It was an initiative of Julian Huxley and Max Nicholson.
It is the world's largest independent conservation organization with over 5 million (44) _____ worldwide, working in more (45) _____ 90 countries, supporting 100 conservation and environmental projects around the world. It is a charity, with (46) ____ 9% of its funding coming from voluntary. (47) ___ by private individuals and businesses.
The group says its mission is "to halt and reverse the (48) _____ of our environment". Currently, much of its work focuses on the conservation of three biomes that contain most of the world's biodiversity: forests, freshwater ecosystems, and oceans and coasts. Among other issues, it is also concerned (49) _____ endangered species, pollution, and climate change. The organization (50) ____ more than 20 field projects worldwide. In the last few years, the organization set up offices and operations around the world.
a. non 	b. not 	c. no 	d. nor
a. challenge 	b. keeping 	c. conservation 	d. awareness
a. produced 	b. discovered 	c. used 	d. formed
a. supporters 	b. residents 	c. inhabitants 	d. citizens
a. as 	b. than 	c. to 	d. as to
a. generally 	b. individually 	c. commercially 	d. approximately
a. deposits 	b. donations 	c. refunds 	d. loans
a. destroy 	b. destructive 	c. destruction 	d. destroyed
a. on 	b. by 	c. with 	d. upon
a. goes 	b. walks 	c. reaches 	d. runs
 TEST 2
Choose the word which has the underlined part pronounced differently from the rest.
a. endangered 	b. destroyed 	c. damaged 	d. provided
a. attitude 	b. survive 	c. introduce 	d. human
a. medicine 	b. priority 	c. crisis 	d. primary
a. chemical 	b. which 	c. change 	d. each 
a. protect 	b. commercial 	c. construction 	d. climate
Choose a, b, c, or d that best completes each unfinished sentence, substitutes the underlined part, or has a close meaning to the original one.
Almost half of turtles and tortoises are known to be threatened with ____.
a. extinct 	b. extinction 	c. extinctive 	d. extinctly
Current extinction rates are at least 100 to 1,000 times higher than _______ rates found in the fossil record.
a. nature 	b. natural 	c. naturally 	 d. naturalness
It is reported that humans are the main reason for most species' declines and habitat _______ and degradation are the leading threats.
a. destroy 	b. destructive 	c. destructor 	d. destruction
We have to apply effective measures to save many plant and animal species _______ extinction.
a. from 	b. in	 c. for 	d. on
Over-exploitation for food, pets, and medicine, pollution, and disease are recognized _______ a serious threat _______ extinction.
a. as / of 	b. to / for 	c. over / with 	d. upon / at
Clearing forests for timber has resulted _______ the loss of biodiversity.
a. with 	b. at 	c. in 	d. for
Humans depend on species diversity to provide food, clean air and water, and fertile soil for agriculture.
a. destruction 	b. contamination 	c. fertilizer 	d. variety
The world's biodiversity is declining at an unprecedented rate, which makes wildlife _______.
a. prosperous 	b. prefect 	c. vulnerable 	d. remained
Life on Earth is disappearing fast and will continue to do so unless urgent action is taken.
a. vanishing 	b. damaging 	c. polluting 	d. destroying
_______ is the protection of environment and natural resources.
a. Survival 	b. Commerce 	c. Conservation 	d. Extinction
Hunting for meat and burning forests for soil cause destruction to wildlife.
a. organization 	b. contamination 	c. protection 	d. damage
Toxic chemicals from factories are one of the serious factors that leads wildlife to the _______ of extinction.
a. wall 	b. fence 	c. verge 	d. bridge
Species become extinct or endangered for _______ number of reasons, but _____ primary cause is the destruction of habitat by human activities.
a. Ø / a 	b. a / the 	c. the / a 	d. Ø / Ø
Since _______ 1600s, worldwide overexploitation of animals for _______ food and other products has caused numerous species to become extinct or endangered.
a. the / a 	b. the / Ø 	c. Ø / the 	d. the / the
I _______ be at the meeting by 10:00. I will probably _______ take a taxi if I want to be on time.
a. must/ have to b. may / must c. should / needn't d. mustn't / shouldn't
You _______ forget to pay the rent tomorrow. The landlord is very strict about paying on time.
a. needn't 	b. mustn't 	c. do not have to 	d. may not
The television isn't working. It _______ during the move.
a. should have been damaged 	b. needn't be damaged
c. must have been damaged 	d. ought not be damaged
I am not deaf. You _______ shout.
a. must 	b. mustn't 	c. need 	d. needn’t
John failed again. He _______ harder.
a. must have tried 	b. should have tried c. can tried d. may have tried
_______ I borrow your lighter for a minute? - Sure, no problem. Actually, you _______ keep it if you want to.
a. May / can 	 b. Must / might 	c. Will / should 	d. Might / needn’t
I do not mind at all. You _______ apologize.
a. shouldn't 	b. needn't 	c. mustn't 	d. oughtn't to
Ted's flight from Amsterdam took more than 11 hours. He _______ exhausted after such a long flight now. 
a. must be b. must be being c. must have been d. should have been
The lamp _______ be broken. Maybe the light bulb just burned out.
a. should not 	b. might not 	c. must not 	d. will not
It is a top secret. You _______ tell anyone about it.
a. mustn't 	b. needn't 	c. mightn't 	d. won't
We have plenty of time for doing the work. We _______ be hurried.
a. needn't 	b. shouldn't 	c. mustn't 	d. mayn't
Choose the best sentence that can be made from the words given.
we I dependent / nature / cannot survive ourselves / without wildlife
a. As we are dependent on nature and we cannot survive ourselves without wildlife.
b. We dependent on nature and therefore cannot survive ourselves without wildlife.
c. We are dependent on nature and so cannot survive ourselves without wildlife.
d. We are dependent on nature and cannot survive ourselves without wildlife.
environmental education / help / spread / environmental awareness / share practical techniques / solve the environmental problems
a. Environmental education to help for spreading environmental awareness and sharing- practical techniques to solve the environmental problems.
b. Because environmental education helps to spread environmental awareness and shares practical techniques to solve the environmental problems.
c. Environmental education helps to spread environmental awareness and shares practical techniques to solve the environmental problems.
d. Environmental education that helps to spread environmental awareness and sharing practical techniques to solve the environmental problems.
we / engage / individuals / appreciate nature / the relationship / they have with wildlife
a. We should engage individuals to appreciate nature and the relationship that they have with wildlife.
b. We might engage individuals for appreciating nature and the relationship that they have with wildlife.
c. We must engage individuals to appreciate nature and the relationship when they have with wildlife.
d. We need engaging individuals to appreciate nature and the relationship which they have with wildlife.
everyone / pick up / one piece of trash / a day / about 6.6 billion pieces less
a. If everyone picked up one piece of trash a day, there would be about 6.6 billion pieces less. 
b. When everyone will pick up one piece of trash a day, about 6.6 billion pieces would be less.
c. Because everyone picks up one piece of trash a day, about 6.6 billion pieces is less. 
d. Unless everyone picked up one piece of trash a day, there will be about 6.6 billion pieces less. 
you / conserve energy / go to school or to work by bus / turn off your electric devices / you are not using them
a. As you want to conserve energy, go to school or to work by bus and so turn off your electric devices when you are not using them.
b. If you want to conserve energy, go to school or to work by bus together with turn off ,your electric devices when you are not .using them.
c. Suppose you want to conserve energy, go to school or to work by bus and turn off your electric devices when you are not using them.
d. When you want to conserve energy, you needn't go to school or to work by bus and turn off your electric devices when you are not using them.
Read the passage carefully and choose the correct answer.
We live in a dynamic world, and habitats are always undergoing changes at all sorts of levels. However, natural changes usually occur at a slow pace so that impacts on individual species tend to be slight - at least in the short term. When the pace of change is greatly accelerated, there may be no time for individual species to react to new circumstances, and the effects can be disastrous. Briefly, this is the reason that rapid habitat loss is regarded as the chief cause of species endangerment, and there is no force more powerful in this regard than human beings. To some extent, every part of the earth has been affected by human activities, especially during this past century. This applies on virtually every scale, from the loss of microbes in soils that once supported tropical forests, to the extinction of fish and other aquatic species in polluted freshwater habitats, to changes in global climate caused by the release of greenhouse gases.
From the perspective of an individual human lifetime, such changes may be hard to detect and their effects on individual species may be hard to predict. But the lesson is clear enough. For example, although many countries have had plans to grow many tropical forests, they are highly susceptible to destruction because the soils in which they grow are poor in available nutrients. Centuries may be required to bring back a forest that was cut down or burnt out in the space of a few years. Many of the world's severely threatened animals and plants live in such forests, and it is certain that huge numbers of them will disappear if present rates of forest loss continue.
Habitats in the world are unchangeable and fixedly exist.
a. True 	b. False 	c. No information
All species can adapt themselves to new circumstances easily and quickly.
a. True 	b. False 	c. No information
Human beings are the main cause that leads to rapid habitat loss.
a. True 	b. False 	c. No information
Many kinds of fish are also in danger of extinction because water habitats are polluted. 
a. True 	b. False 	c. No information