Bài tập thực hành Unit 9 - Sách Mai Lan Hương Lớp 12

DESERTS
TEST 1
Choose the word which has the underlined part pronounced differently from the rest.
a. grasses 	b. stretches 	c. comprises 	d. potatoes
a. lie 	b. wide 	c. circle 	d. comprise
a. compound 	b. route 	c. house 	d. south
a. dune 	b. hummock 	c. shrub 	d. buffalo
a. west 	b. between 	c. growth 	d. which
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. 
________ Sahara of ________ Africa is the world's largest desert.
a. Ø / the 	b. The / Ø 	c. A / an 	d. The / an
Deserts can be defined as areas that receive ________ average annual precipitation of less than 250 mm.
a. a 	b. an	 	c. the 	d. Ø
The Sahara contains complex linear dunes that are ________ by almost 6 kilometers.
a. developed 	b. separated 	c. lay 	d. located
A _______ is a landscape or region that receives very little precipitation.
a. dune 	b. desert 	c. sandy area 	d. shrub land
Deserts are often composed of ________ and rocky surfaces.
a. water 	b. trees 	c. oil 	d. sand
Three great stretches of sandy deserts almost circle the center of Australia.
a. dunes 	b. valleys 	c. lands 	d. areas
Deserts are also classified by their ________ location and dominant weather pattern.
a. geographical 	b. aerial 	c. sandy 	d. facial
Thanks to pictures taken by satellites, deserts have not ________ a mystery in our time.
a. hidden 	b. intended 	c. remained 	d. attained
Deserts take ________ one-third of the Earth's land surface.
a. up 	b. on 	c. over 	d. after
The Simpson Desert was named _______ Mr. Simpson, President of the South Australian Branch of the Royal Geographical Society of Australia.
a. with 	b. at 	c. after 	d. for
In 1953, Peveril Meigs divided desert regions ________ Earth ________ categories according to the amount of precipitation they received.
a. through / in 	b. from / with 	c. on / into 	d. in / for
More and more ________ are very excited at discovering as many interesting things in the deserts as possible. 
a. explores 	b. explorations 	c. explorers 	d. exploratory
Can you make a ________ estimate of how much our expedition in the desert may be?
a. rough 	b. roughly 	c. roughing 	d. roughen
After Peter had returned from the Sahara desert, he was confined to bed by a ________ disease. 
a. mystery 	b. mysterious 	 c. mysteriously d. mysteriousness
I want to work as an interpreter in the future, ________, I am studying Russian at university. 
a. but 	b. so 	c. however 	d. therefore
I am going shopping for food this evening ________ I do not have to go at the weekend.
a. so 	b. but 	c. however 	d. moreover
When she got the news from her family, she could not do anything, ________ cry.
a. but 	b. and 	c. so 	d. however
Mrs. Lindon has ________ that she is unable to get a job.
a. but not enough education 	b. so little education
c. however little education 	d. such little education
That small car, ________, is advertised in many current magazines.
a. so inexpensive and comfortable 
b. however inexpensive and comfortable
c. inexpensive but comfortable 
d. and inexpensive but comfortable
We live in the same building ________ we have hardly seen each other
a. and 	b. therefore 	c. but 	d. so
I went to buy a Rolling Stones CD ________ the shop didn't have it.
a. and 	b. but 	c. therefore 	d. so
Anna needed some money, ________, she took a part-time job.
a. furthermore 	b. moreover 	c. however 	d. therefore
Julie has a guitar ________ she plays it really well.
a. and 	b. so 	c. but 	d. therefore
My fingers were injured ________ my sister had to write the note for me.
a. and 	b. however 	c. so 	d. but
The concert was cancelled ________ we went to a nightclub instead.
a. so 	b. however 	c. so on 	d. but
Error Identification.
Desert is a large area of land that has very little water however very few
 A B C
plants growing on it.
 D
Rain falls occasionally in deserts so desert storms are often violent.
 A B C D
The Nile River, the Colorado River, but the Yellow River flow through 
 A B
deserts to deliver their sediments to the sea.
 C D
Deserts may have underground springs, rivers, or reservoirs they lie 
 A B
close to the surface, or deep underground.
 C D
Most plants in deserts have adapted to sporadic rainfalls in a desert.
 A B C 
environments 
 D
Read the passage carefully and choose the correct answer.
A desert is a hostile, potentially deadly environment for unprepared humans. In hot deserts, high temperatures cause rapid loss of water due to sweating, and the absence of water sources with which to replenish it can result in dehydration and death within a few days. In addition, unprotected humans are also at risk from heatstroke.
Humans may also have to adapt to sandstorms in some deserts, not just in their adverse effects on respiratory systems and eyes, but also in their potentially harmful effects on equipment such as filters, vehicles and communication equipment. Sandstorms can last for hours, sometimes even days.
Despite this, some cultures have made hot deserts 'their home for thousands of years, including the Bedouin, Tuareg tribe, and Pueblo people. Modern technology, including advanced irrigation systems, desalinization and air conditioning, has made deserts much more hospitable, In the United States and Israel for example, desert farming has found extensive use.
In cold deserts, hypothermia and frostbite are the chief hazards, as well as dehydration in the absence of a source of heat to melt ice for drinking. Falling through pack-ice or surface ice layers into freezing water is a particular danger requiring emergency action to prevent rapid hypothermia. Starvation is also a hazard; in low temperatures the body requires much more food energy to maintain body heat and to move. As with hot deserts, some people such as the Inuit have adapted to the harsh conditions of cold deserts.
The text is about ________.
a. troubles that human beings have to face in a desert
b. desert storms and desert inhabitants
c. hot deserts and cold deserts in the United States
d. desert hospitality and environment
Which is not a problem for an unprepared man in a hot desert?
a. sandstorm 	b. loss of water 	c. irrigation 	d. heatstroke
Sandstorms ________.
a. do no harm to machinery
b. have effects only on the eyes
c. never lasts more than one hour
d. have bad effects on both human beings and machinery
Which sentence is true?
a. No one can survive in both hot and cold deserts.
b. Modern technology makes deserts more hospitable.
c. In the United States, all deserts are quite uninhabited.
d. There are no deserts in Israel.
Which is not a problem in cold deserts?
a. Starvation 	b. Hypothermia 	c. Frostbite 	d. Body heat
Fill in each numbered blank with one suitable word or phrase.
Desert biomes are the (41) _____ of all the biomes. In fact, the most important characteristic of a desert is that it receives very little (42) _____. Most deserts receive less than 300 mm a year compared (43) __ rainforests, which receive over 2,000 mm. That means that the desert only gets 10 percent of the rain that a rainforest gets! The temperature in the desert can (44) _____ drastically from day to night because the air is. (45) _____ dry that heat escapes rapidly at night. The daytime temperature averages 38°C (46) _____ in some deserts it can get down to -4°C at night. The temperature also varies greatly depending on the (47) _____ of the desert.
Since desert conditions are so severe, the plants that live there need to have (48) _____ to compensate for the lack of water. Some plants, such as cacti, (49) _____ water in their stems and use it very slowly, while others like bushes conserve water by growing few leaves or by having large root systems to gather water or few leaves. Some desert plant species have a short life cycle of a few weeks that (50) _____ only during periods of rain.
a. coldest 	b. hottest 	c. driest 	d. wettest 
a. rain 	b. rainfall 	c. raindrop 	d. raincoat
a. with 	b. for 	c. about 	d. in
a. change 	b. exchange 	c. transform 	d. transfer
a. such as 	b. such 	c. so much 	d. so
a. when 	b. while 	c. as 	d. because
a. part 	b. region 	c. area 	d. location
a. adaptations 	b. agreements 	c. accepts 	d. achievements
a. place 	b. put 	c. store 	d. hold
a. spend 	b. take 	c. last 	d. experience
TEST 2
Choose the word which is stressed differently from the rest.
a. comprise 	b. sandy 	c. circle 	d. northern
a. Aborigines 	b. expedition 	c. kilometer 	d. scientific
a. corridor 	b. enormous 	c. mystery	d. separate
a. remain	b. hummock 	c. explore	d. between
a. territory 	b. Australia 	c. geography 	d. society
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.
The Simpson Desert is in ________ north of ________ Lake Eyre.
a. Ø / Ø 	b. the / the 	c. a / the 	d. the / Ø
Cold deserts can be covered in ________ snow or ice and frozen water is unavailable to plant life.
a. a 	b. an 	c. the 	d. Ø
In the northern part of the Simpson Desert, the dunes are separated by ________ of low, open shrubland.
a. streets 	b. ways 	c. corridors 	d. lines
San Francisco is built on 40 hills and some are very ________.
a. short 	b. steep 	c. plain 	d. stable
A ________ is a small raised area of ground, like a very small hill.
a. slope 	b. hummock 	c. dune 	d. shrub
We used to climb up the crest of the hill to get a good view of the surroundings.
a. top 	b. foot 	c. middle 	d. face
To ________ a desert is a danger activity which requires careful preparation for risks.
a. comprise 	b. circle 	c. remain 	d. explore
Scientific ________ help to explore some places and discover more and more remote parts of the world.
a. survey 	b. lead 	c. research 	d. expedition
The wind that blows in the desert comes ________ far away waters.
a. for 	b. with 	c. in 	d. from
Some sand dunes may be over 200 meters ________ height.
a. with 	b. at 	c. on 	d. in
If you look on a map you will see that there is a desert next ________ the Rocky Mountains in the United States.
a. of 	b. to 	c. with 	d. for
________ is the process by which a piece of land becomes dry, empty, and unsuitable for growing trees or crops on.
a. desert 	b. deserted 	c. desertify 	d. desertification
Several ________ advanced countries have had plans to make desert more hospitable.
a. science 	b. scientific 	c. scientifically 	d. scientist
The desert biome includes the hottest places in the world because it absorbs more ________ from the sun than land in humid climates do.
a. heat 	b. hot 	c. hotly	d. heating
Many people have law degrees, ________.
a. but some of them do not practice it b. however it is not practiced by all
c. so some are not practicing law 	d. but not all of them practice law
This is an expensive ________ very useful book. 
a. but 	b. so 	c. therefore 	d. however
________ long it takes, I will wait for you.
a. However 	b. But 	c. So 	d. Therefore
I must say that you have done very well. ________, you should be aware that you still have a lot of thing to learn.
a. Therefore 	b. So 	c. But 	d. However
________ that we stopped for a rest.
a. But we were tired 	b. So tired were we
c. However we were tired 	d. Therefore, we were tired
He is only sixteen, and ________, he is not eligible to drive a car.
a. nevertheless	 	b. but 	c. therefore 	d. however
Maria tried to read a novel in French ________ the book was too difficult for her to understand.
a. so that	 	b. therefore 	c. but 	d. and
To get from Vancouver to Victoria, you can fly, __ you can ride the ferry.
a. or 	b. but 	c. so 	d. however
I bought a bottle of wine ________ we drank it together.
a. therefore 	b. so 	c. and 	d. but
The waiter was not very nice, ________, the food was delicious.
a. however 	b. but 	c. so 	d. and so
___ hard he worked, he could earn enough money to support the family.
a. But 	b. However 	c. Therefore 	d. Whatever 
Choose the sentence which has the closest meaning to the original one.
Slippery as the roads were, they managed to complete the race.
a. The roads were so slippery that they could hardly complete the race.
b. The roads were slippery but they managed to complete the race.
c. The roads were slippery so they could hardly complete the race.
d. The roads were so slippery; therefore, they could hardly complete the race.
They decided to go for a picnic though it was very cold.
a. Because it was very cold, they decided to go for a picnic.
b. However cold it was, they decided to go for a picnic.
c. If it had been cold, they would not have gone for a picnic.
d. It was very cold so they decided to go for a picnic.
Both Peter and Mary enjoy scientific expedition.
a. It is not Peter, but Mary, that enjoys scientific expedition.
b. Peter enjoys scientific expedition. Therefore, does Mary.
c. However Peter enjoys scientific expedition and Mary does.
d. Peter enjoys scientific expedition, and so does Mary.
Because it was an interesting novel, I stayed up all night to finish it.
a. I stayed up all night to finish the novel, therefore, it was interesting.
b. Unless it were an interesting novel, I would stay up all night to finish it.
c. Though it was an interesting novel, I stayed up all night to finish it.
d. So interesting was the novel that I stayed up all night to finish it.
He cannot afford a new computer.
a. The new computer is so expensive that he cannot buy it.
b. Therefore, he would buy a new computer.
c. So, he would buy a new computer.
d. The new computer is so expensive but he can buy it ,
Read the passage carefully and choose the correct answer.
Approximately one-third of the Earth's land surface is desert, arid land with meager rainfall that supports only sparse vegetation and a limited population of people and animals. Deserts have been portrayed as fascinating environments of adventure and exploration. These arid regions are called deserts because they are dry. They may be hot. They may be cold. They may be regions of sand or vast areas of rocks with occasional plants.
Deserts are natural laboratories in which to study the interactions of wind and sometimes water on the arid surfaces of planets. They contain valuable mineral deposits that were formed in the arid environment or that were exposed by erosion. Because deserts are dry, they are ideal places for human artifacts and fossils to be preserved. Deserts are also fragile environments. The misuse of these lands is a serious and growing problem in parts of our world.
There are many animals in the desert. Some are very large, like the kangaroo or the gazelle. Both are big and have to travel long distances for water at a spring, or an oasis. Another fairly large animal is the addax. The addax is a desert antelope. They live in the Sahara Desert. All addaxes are herbivores. There are less than 200 of them left because of hunting and tourists. Some animals crawl along. Examples of these are snakes and lizards. Snakes rarely drink water; they get their moisture from other prey that they eat. So do others, like the kangaroo rat. Lizards are commonly found in the desert. They stay out of the sun and move as little as possible. There are also other animals in the desert. The fennec lives in northern Africa in the Sahara Desert. They are a relative of the fox. They eat mice, small birds, lizards, and insects. When necessary, they will eat fruit. One more desert animal is the jerboa. The jerboa is a small, long distance jumper that lives in the desert. They are free drinking animals and they eat plants, seeds, and bugs.
Deserts ________.
a. are rare in the world 	b. are more arid more populous
c. are all hot all the time 	d. may be both hot and cold
The word They refers to ________.
a. deserts 	b. natural laboratories 	c. planets d. mineral deposits
Which is not true about deserts?
a. arid 	b. hot 	c. humid 	d. dry
According to the second paragraph, ________.
a. we should use desert land properly to avoid serious problems
b. we can exploit as much fossil as possible in deserts
c. there are no erosion in deserts
d. deserts are ideal places for growing land
The last paragraph expresses that ________.
a. none of animals can survive in deserts
b. hunting and tourists cause the decreasing of addaxes in the Sahara Desert.
c. snakes in deserts need more water than any other species
d. addaxes are the most populous species in deserts
Fill in each numbered blank with one suitable word or phrase.
Most traditional human life in deserts is nomadic. It (41) ______ in hot deserts on finding water, and on following infrequent rains to (42) ______ grazing for livestock. In cold deserts, it depends on finding good hunting and fishing grounds, on sheltering from blizzards and winter (43) ______, and on storing enough food for winter. Permanent settlement in both kinds of deserts requires permanent water, food sources and adequate shelter, or the technology and energy sources to (44) ______ it.
Many deserts are flat and featureless, lacking landmarks, or composed of repeating landforms such as sand (45) ______ or the jumbled ice-fields of glaciers. Advanced skills or devices are required to navigate through such landscapes and (46) _____ travelers may die when supplies run (47) ______ after becoming lost. In addition, sandstorms or blizzards may cause disorientation in severely-reduced visibility.
The (48) ______ represented by wild animals in deserts has featured in explorers' accounts but does not cause higher (49) ______ of death than in other environments such as rainforests or savanna woodland, and generally does not affect human distribution. Defense against polar bears may be advisable in some areas of the Arctic. Precautions against snakes and scorpions in choosing (50) ______ at which to camp in some hot deserts should be taken.
a. locates 	b. selects 	c. follows 	d. depends
a. earn 	b. demand 	c. obtain 	d. require
a. extremes 	b. poles 	c. tops 	d. heights
a. grow 	b. supply 	c. comfort 	d. bring
a. dunes 	b. piles 	c. valleys 	d. stores
a. inconsistent 	b. incapable 	c: inexperienced 	d. independent
a. of 	b. out 	c. in 	d. over
a. danger 	b. dangerous 	c. endanger 	d. endangered
a. level 	b. rate 	c. scale 	d. standard
a. sight 	b. lies 	c. sites 	d. seats
TEST 3
Choose the word which has the underlined part pronounced differently from the rest.
a. three 	b. south 	c. southern 	d. both
a. remained 	b. explored 	c. separated 	d. travelled
a. loose 	b. smooth 	c. food 	d. flood
a. enormous	 	b. rough 	c. enough 	d. double
a. society 	b. geography 	c. dry 	d. sandy
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.
________ sand covers only about 20 percent of Earth's deserts.
a. A 	b. An 	c. The 	d. Ø
Deserts have ________ reputation for supporting very little life, but in ________ reality deserts often have high biodiversity.
a. a / Ø 	b. the / the 	c. a / the 	d. the / a
The hill was so ________ that it took us more than five hours to climb up.
a. sloping 	b. enormous 	c. arid 	d. stable
In the northern part of the Simpson Desert, the dunes are parallel.
a. mysterious 	b. steep 	c. plenty of sand 	d. similar in some ways
Several deserts are a quite vast and uninhabited ________.
a. plain 	b. territory 	c. corridor 	d. shrub
A ________ is a large animal that lives in deserts and is used for carrying goods and people.
a. slope 	b. dune 	c. spinifex 	d. camel
The ________ of a cliff, or mountain, is a vertical surface or side of it.
a. face 	b. border 	c. crest 	d. lake
Most deserts are enormous sandy areas.	
a. mysterious 	b. narrow 	c. immense 	d. aerial
Camels were often used _______ transportation by people of the desert.
a. as 	b. with 	c. to 	d. about
Camels have