1、Unit 4 单元检测卷阅读理解AWhen an earthquake hit a small town，many houses fell down.After the earthquake，all the newspapers reported many stories about some of the families who were in trouble.One Sunday，when I was reading a newspaper，a special picture touched me.It gave the clothing sizes of each family mem
2、ber.I thought that this would be a good chance to teach my children to help those who were less lucky than themselves.I said to my sevenyearold twins，Brad and Brett，and threeyearold Meghan，“We have so much，and these poor people now have nothing.Well share what we have with them.”I filled a box with
3、foods and clothes.While I was doing this，I encouraged the boys to choose their toys and donate some of their less favourite things.Meghan watched quietly as the boys took out their old toys and games and put them together.Then she walked away.A few minutes later she came back with Lucy，her muchloved
4、 doll.She put the doll on top of the other toys.“Oh，dear，” I said.“You dont have to give Lucy.You love her so much.”Meghan said，“Lucy makes me happy，Mommy.Maybe shell make another little girl happy，too.”I looked at Meghan for a long moment.She taught me a lesson.Its easy to give something that we do
5、nt want any more，but hard to give what we cherish (珍爱)，isnt it?1The writer has_ children.AoneBtwoCthree Dfour2The underlined word “donate” in paragraph 3 probably means “_”A捐赠 B丢掉C展出 D放好3Which of the following is TRUE?AAn earthquake happened in the writers hometown.BThe writer let Meghan give her mu
6、chloved doll.CThe writer decided to buy some clothes for those people in trouble.DThe writer thinks it is more difficult to give what we love a lot.4Whats the best title for this passage?AA Family StoryBThe Spirit of GivingCThe Way of Helping OthersDA Sad ExperienceBYou have just finished eating an
7、apple while on a hike.You are on a path without rubbish bins；what do you do with the apple core (核)？If you answered “throw it in the grass” because you always thought fruit would not have a bad influence on nature，prepare for a slowly nodding “ahhh” moment.According to the people at Glacier National
8、 Park，decomposition (分解) of fruit litter takes much longer than you probably imagine；at the same time，it causes other problems.These “natural” food will not decompose quickly.Some fruit products can take years to decompose depending on the environment they are in!When animals start to get their food
9、 from people，they may stop looking for their own food in nature.This is very dangerous because animals need different foods to stay healthy.Food waste also draws animals to areas where there are a lot of people.And when food is thrown out of a car window，animals may develop the habit of searching ro
10、adsides for food，which increases the chances of their being hit by a car.In fact，apples，bananas and oranges are not native to Glacier National Park.If they are eaten by wild animals，they will probably cause the animals to get sick.Seeds (种子) of these fruit or vegetables that end up on the ground cou
11、ld result in an exotic plant growth.And then，of course，there is the simple fact that nobody wants to see somebody elses fruit litter，which has already gone bad，while enjoying the beautiful outdoors.I know that its hard enough to get people not to litter plastic bags and water bottles，but even so，thi
12、s article serves as a good public service announcement (公益广告)In the words of the Wildlife Center of Virginia，no litter is safe litter，not even an apple core.5How does the author start the text?ABy collecting readers answers.BBy describing a situation in life.CBy encouraging people to protect nature.
13、DBy explaining how to deal with fruit litter.6What influence would throwing food waste have on animals?AIt provides different foods for them.BIt prevents them from dying of hunger.CIt develops their dependency on humans.DIt makes them lose the ability to live in nature.7What does the underlined word
14、 “exotic” in paragraph 4 mean?AForeign. BWild.CSick. DStrong.8Why does the author write the text?ATo advise us not to eat while hiking.BTo ask us to protect the wild animals.CTo explain how food waste is decomposed.DTo call on people not to litter food waste.CWhen you think of the Himalayas, you may
15、 picture tall, rocky, snowcovered peaks. But thats not true. The subnival (亚冰雪的) region is the zone between the treeline and the snowline. It is 5 to 15 times as large as the areas of glaciers (冰川) and permanent snow, which means studying it is vital to understanding the Himalayas as a whole. The tr
16、eeline is the edge of an ecosystem where trees are able to grow, and beyond the treeline environmental conditions become too tough to allow tree growth. Meanwhile, snowlines are the boundaries on mountains that separate areas with permanent snow (where snow is present for the majority of the year) f
17、rom areas with seasonal or no snow. Researchers used satellite data from 1993 to 2018 to measure plant cover between 4,150 meters and 6,000 meters above sea level. The scientists discovered that the greatest increase in plant cover was between an altitude of 5,000 meters and 5,500 meters. Subnival p
18、lants mostly include small shrubs and grasses. Even areas once completely occupied by glaciers now hold rocks covered with mosses (苔藓), lichen (地衣), and sometimes even flowers. In addition, the snowline seems to be retreating,_while the treeline is expanding. This shows that the region is becoming w
19、armer, causing more melting of snow and allowing vegetation to move up in height. In the past 40 years, 25% of all Himalayan ice has been lost due to global warming. Himalayan glaciers are reducing by about 0.5 meters each year. The rate of glacier melting has doubled in this decade. The melting of
20、glaciers increases water in the region, making it wetter. Receding snow also forces the snowline to move up, providing a greater amount of area for the warm and moist conditions, which are perfect for vegetation growth. As of now, we do not know whether vegetation will accelerate or slow down the ra
21、te of glacier melting. 1How does the writer develop the third paragraph?ABy making explanations.BBy giving some examples. CBy analyzing cause and effect.DBy listing specific data. 2What does the underlined word “retreating” mean in paragraph 5? ADisappearing.BLengthening. CWithdrawing. DWidening. 3W
22、hat is the direct effect of global warming on the Himalayas?AThe snowline moves up. BGlaciers are melting faster. CThe subnival area is wetter. DPlants grow much better. 4What is the best title for the text?AThe Climate of Himalayas Is Changing BIcebergs in the Himalayas Disappear CPlants Are Divers
23、e in the Himalayas DPlant Life Spreads in the Himalayas DBamboo is one of the natures most surprising plants.Many people call this plant a tree，but it is a kind of grass.Like other kinds of grass，a bamboo plant may be cut very low to the ground，but it will grow back very quickly.A Japanese scientist
24、 recorded one bamboo plant that grew almost 1.5 meters in 24 hours！Bamboo grows almost everywhere in the world except Europe.There are more than 1,000 kinds of bamboo that grow around the world on both mountains and plains (平原)Not all bamboo looks the same.Some bamboo plants are very thin.They may o
25、nly grow to be a few centimeters wide while_others_may_grow_to_more_than_30_ centimeters_across.This plant also comes in different colors，from yellow to black to green.Many Asian countries have been using bamboo for hundreds of years.They often use bamboo for building new buildings.As a matter of fa
26、ct，the cables (绳索) that hold up the hanging bridge across the Min River in Sichuan are made of bamboo.The bridge has been in use for more than 1,000 years，and is still holding strong.In Africa，engineers are teaching poor farmers how to find water using bamboo.These African countries need cheap ways
27、to find water because they have no money，and their fields often die from no rain and no water.It seems that bamboo is one of the best things they can use.Bamboo pipes and drills (钻) can help to make the poor thirsty fields be watered.1How is bamboo like grass?AIt is thin and easy to cut.BIt grows ev
28、erywhere.CIt grows quickly after its cut short.DIt is short and green.2The sentence “while others may grow to more than 30 centimeters across” means “Some other bamboo plants may grow to be very _.” AshortBstrongCthick Dtall3From the text we know _.Amost people call bamboo plant treesBa bamboo plant
29、 may grow 4.5 meters in three daysCthe bamboo plant changes its colors when it growsDa bridge held by bamboo cable was built thousands of years ago4Why did the engineers teach the poor farmers in Africa to make use of bamboo?ABecause it is cheap.BBecause it is colorful.CBecause it drills fast.DBecau
30、se it is used by Asians.阅读七选五1 However，all floods are not alike.Some floods develop slowly，sometimes over a period of days.But flash floods can develop quickly，sometimes in just a few minutes and without any signs of rain.Flash floods often have a dangerous wall of roaring water.It carries rocks and
31、 mud and can sweep away most things in its path.Overland flooding occurs outside a river but still can be harmful.Flooding can also occur when a dam breaks，producing effects similar to flash floods.If a flood is likely to occur in your area，you should：Listen to the radio for information.2 Dont wait
32、for instructions to move.If you have time to prepare，you should：Make your home safe by bringing in outdoor furniture.More essential items to an upper floor.3 Do not touch any electrical equipment if you are wet or standing in water.4Dont walk through moving water.Six inches of moving water can make
33、you fall.If you have to walk in water，walk where the water is not moving.Use a stick to check the firmness of the ground in front of you.Dont drive into flooded areas.If flood water rises around your car，give up the car and move higher ground if you can do so safely.5The following are guidelines for
34、 the period following a flood：Listen to news reports to learn whether the communitys water supply is safe to drink.Stay away from downed power lines，and report them to the power company.ATurn off all pieces of electrical equipment.BOtherwise you and the car can be quickly swept away.CThe following a
35、re tips about escaping from floods.DFloods are one of the most common disasters in the US.EIf you have to leave your home right away，remember the following tips.FIf there is any possibility of a flash flood，move immediately to higher ground.GThere are many natural disasters like floods，storms，hurric
36、anes in the US every year.完形填空The earthquake was over and the city was in ruins.I had no choice but to walk home as all the _1_ had stopped as a result of the quake.On my way home I _2_ an old lady at a bakery shop giving out free bread，which made my heart _3_.A man was holding a sign saying，“Please
37、 use our house.” He was _4_ his house for people to go to the restroom.My friend，who wanted to be of help to others，stood in the cold with a sign “If you dont _5_ a motorcycle，Ill be glad to drive you home.” And then I saw him pick up an old man and drive him all the way to a faraway place! The next
38、 day I drove to have my car filled up.There was not enough _6_ now and many gas stations were either closed or had very _7_ lines.I got worried，since I was behind fifteen cars.Finally，when my _8_ came，the man smiled and said，“_9_ this situation，we are only giving 30 dollars worth of gas per person.I
39、s that alright？” “Of course.Its nice that we are all able to _10_，”I said.His smile gave me so much comfort.At the escape center I saw a man _11_ when people brought food to him.It was the first time in three days that food had been brought to their center.However，after he cleaned up the tears，his n
40、ext _12_ surprised me.“I am very _13_ that we are provided with food.But people in the city next to us havent _14_ any food at all.Please go to that center as well.” Hearing that，I realized there was a bright future on the other side of this _15_.1A.lifeBbusinessCrescue Dtraffic2A.noticed BmissedCig
41、nored Dcaught3A.kind BbrokenCwarm Dempty4A.opening BsellingCrepairing Dbuilding5A.buy BcareCmatter Dmind 6A.gas BinformationCfood Dwater7A.direct BfineClong Dthin8A.time BturnCduty Ddecision9A.Except for BTogether withCInstead of DBecause of10A.share BofferClearn Dchoose11A.crying BeatingCsmiling Ds
42、inging12A.ways BrolesCwords Dpromises13A.sure BgratefulCsurprised Dproud 14A.bought BwastedCprepared Dreceived15A.disaster BchanceCcity Dcenter语法填空David was a normal boy, but he had been born deaf.He was wellknown to everyone in town, and they were all very fond 1._ him.Unfortunately, he always seem
43、ed to be treated 2._ (different) from everyone else.David didnt like this very much.But the person 3._ disliked this most was his friend Michael.Michael decided that things had to change.So he managed to persuade other people in town 4._ (choose) one day of the festival for deaf people this year.Dur
44、ing that whole day，everyone in town would have to wear earplugs (耳塞)The day 5._ (call) The Day of Silence, and when it arrived everyone stuck plugs in their ears.As the hours passed, people began to realize 6._ difficult life was for the deaf.Soon no one was thinking of David as a deaf person.7._ (u
45、se) his usual gestures, David was the one who could communicate best with everyone.They were 8._ (surprise) at his ability to find solutions to almost any problem.They realized all David needed was a little 9._ (much) time than others to communicate.That was the only difference.It was on this day that everyone realized they have to give people a chance to show how 10._ (use) they are.KEYS”CADB BCAD ACBD CCBA DFAEBDACAD ACBDA ACBDC1of2differently3who/that4to choose5was called6how7Using8surprised9more10useful
