16.The tree people in the Lord of the Rings-the Ents-can get around by walking.But for real trees,well,it's harder to uproot."Because it's a sessile organism,literally,rooted into the ground,it is unable to leave and go elsewhere."Mario Pesendorfer,a behavioral ecologist at the Cornell Lab of Ornithology."When a tree first starts growing in a certain area,it's likely that the climatic envelope,so the temperature,humidity,soil composition and so on suits it,because it would otherwise be unable to grow from a seedling.But as it ages,these conditions may change and the area around it may no longer be suitable for its offspring."
And if that happens?Walnuts,hazelnuts,chestnuts,oaks,pines-many rely exclusively on so-called"scatter-hoarders,"like birds,to move their hefty seeds to new locales."Many members of the family Corvidae-the crows,jays and magpies-are scatter-hoarders,meaning they like to store food for the winter,which they then subsequently retrieve."
Or not.And when they do forget something,a seedling has a chance to grow,sometimes a good distance away."The Clark's nutcracker,which is found in alpine regions of western North America,is definitely the rock star among the scatter-hoarding corvids.They hide up to 100,000 seeds per year,up to 30kilometers away from the seed source,and have a very close symbiotic relationship with several pine species,most notably the whitebark pine."
Pesendorfer and his colleagues catalogue the seed-scattering activities of the Clark's nutcracker and its cousins in a new review paper,in the journal The Condor:Ornithological Applications.They also write that,as trees outgrow their ideal habitats in the face of climate change,or battle new insects and disease,these flying ecosystem engineers could be a big help replanting trees.It's a solution,Pesendorfer says,that's good for us-getting birds to do the work is cheap and effective-and it could give vulnerable oaks and pines the option to truly"make like a tree and leave."

56.According to the article,what makes birds help trees move from one place to another?C.
A.They want to make the environment better for survival
B.They want to change the trees into another kind
C.They want to store the nuts for winter survival
D.They are forced to help trees to survive
57.Which does the underlined word in the last paragraph mean?B.
A.growing in a better way
B.being forced to give up
C.making changes to
D.finding a mysterious way to survive
58.What is the best title of this passage?A.
A.Birds may help trees cope with climate change    
B.Birds rely on nuts to survive
C.Trees help fight air pollution
D.Birds make trees in danger.

分析 本文屬于說明文閱讀,作者通過這篇文章主要向我們描述了許多鳥類可以幫助樹木應(yīng)對氣候變化,讓樹木更好的生存下去.

解答 56.C  細(xì)節(jié)理解題.根據(jù)第二段:And if that happens?Walnuts,hazelnuts,chestnuts,oaks,pines-many rely exclusively on so-called"scatter-hoarders,"like birds,to move their hefty seeds to new locales."Many members of the family Corvidae-the crows,jays and magpies-are scatter-hoarders,meaning they like to store food for the winter,which they then subsequently retrieve."根據(jù)第二段的內(nèi)容可知:一些鳥類會將樹木笨重的果實帶到別的地方.他們平時喜歡囤積食物,入冬后再拿來填飽肚子. 有些囤貨,忘了,于是乎生根發(fā)芽,安居在老遠(yuǎn) 的地方.故選C項.
57.B  詞義猜測題.第四段第二,三句:They also write that,as trees outgrow their ideal habitats in the face of climate change,or battle new insects and disease,these flying ecosystem engineers could be a big help replanting trees.It's a solution,根據(jù)劃線后的可知如果樹木理想的生長環(huán)境發(fā)生了氣候變化或者病蟲害,這些大自然的搬運工就會在移植的時候幫上大忙.故推知劃線詞表示被迫放棄的意思.故選B項.
58.A 主旨大意題.根據(jù)最后一段Pesendorfer says,that's good for us-getting birds to do the work is cheap and effective-and it could give vulnerable oaks and pines the option to truly"make like a tree and leave可知這篇文章最好的題目是鳥類可以幫助樹木應(yīng)對氣候變化;故選A.

點評 考察學(xué)生的細(xì)節(jié)理解和推理判斷能力,做細(xì)節(jié)理解題時一定要找到文章中的原句,和題干進行比較,再做出正確的選擇.在做推理判斷題不要以個人的主觀想象代替文章的事實,要根據(jù)文章事實進行合乎邏輯的推理判斷.

練習(xí)冊系列答案
相關(guān)習(xí)題

科目:高中英語 來源: 題型:選擇題

6.-Excuse,can you tell me ____?
-Sorry,I don't.You can go to the information desk.(  )
A.that there is a trainB.when the train  will come
C.which train can I takeD.where does the train go.

查看答案和解析>>

科目:高中英語 來源: 題型:選擇題

7.An   individual human existence should be like a river-small at first,narrowly contained within its banks,and           passionately past rocks and over waterfalls.(  )
A.to rushB.rushingC.rushedD.rushes

查看答案和解析>>

科目:高中英語 來源: 題型:選擇題

4.__________ 62% of all luxury consumer sales in Europe in 2017,shoppers from the Chinese mainland spent $7.2 billion overseas during the Spring Festival.(  )
A.Accounting forB.Adding toC.Consisting ofD.Making up

查看答案和解析>>

科目:高中英語 來源: 題型:選擇題

11.Hearing the doorbell,I ran to answer it but found my brother had ________ me and let the guests in.(  )
A.interruptedB.updatedC.anticipatedD.overlooked

查看答案和解析>>

科目:高中英語 來源: 題型:閱讀理解

1.Guided Walking Week April 2017Dates:April 30th-May 7th 2017
Location:Abdet,Costa Blanca
     A week of guided walking in the mountains around Abdet.Highlights include the climbing of Valencia's highest summit (Sierra de Aitana),traveling completely around the impressive Puig Campana,and several explorations in the Sierra de Aitana.Ancient trails lead through spectacular canyons (峽谷) to abandoned settlements situated high in the mountains.You will discover the snow trader routes which lead from the incredible snow holes high in the mountains down to the villages and towns on the coast.These years,golden eagles have made a return to this area,and you may also see other animals-wild goats,foxes,wild pigs and red squirrels.
     As part of the week you are invited to help clear some local walking paths.This involves clearing collapsed walls and rocks,cutting back fallen trees.This is of course optional and is just for half a day,it's actually great fun!
Price:﹩499
Includes:
•Accommodation in the beautiful mountain village of Abdet
•All food-good home cooking
•Beer,wine,soft drinks
•Snacks and post walk treats
•Packed lunches & drinks (except café/bar visits)
•Expert guiding
•Photos/Videos of your days in the mountains
•Airport pickup/return﹩25 each way(fly to Alicante)
•Single room supplement﹩75
 To book or get further information,please contact info@abdet.com.

21.What will you find during the guided walking?B
A.Climbing Sierra de Aitana is the most exciting.
B.The environment in Abdet is getting better.
C.Ancient trails have changed into highways.
D.Traders live in incredible snow holes.
22.What is an optional activity during the week of guided walking?A
A.Helping clear some local walking paths.
B.Climbing Valencia's highest summit.
C.Discovering the snow trader routes.
D.Seeing golden eagles fly in the mountains.
23.What may you enjoy if you pay $499?A
A.Pictures and professional guiding.
B.Good home cooking breakfast only.
C.Bus stop pickup/return each way.
D.Packed lunches including bar visits.
24.What do the details presented in the ad suggest?C
A.Accommodation conditions are tough.
B.The walking ends on April 30th 2017
C.People can book the walking online.
D.Clearing walking paths is a must.

查看答案和解析>>

科目:高中英語 來源: 題型:填空題

8.Do you have sleeping problems?If so,then these tips may help you fall asleep fast.
Set aside the thought that you have to fall asleep.The more you think of it,the (61)harder (hard) you will fall asleep.
The foods you eat also play an important part.Avoid (62)eating(eat) or drinking things like chocolates,coffee,tea and energy drinks.If you have to,then have (63)them in the moming and ever in the aftemoon,especially before going to bed.Don't eat too (64)much at night.A full stomach will make it more difficult for you to fall asleep because your body is working more time to (65)digest the food you ate.
Make a (66)fixed (fix)time to go to bed.For example,by 9o'clock in the evening you should already be in bed.Do this even if you're not sleepy yet.Once following this routine,you will (67)gradually (gradual) see that you feel sleepy (68)when it's 9o'clock.
Make your room comfortable for sleeping.You should also take note that the sleeping environment also (69)affects(affect) you sleep.It must be in the room (70)where it's not noisy.Otherwise,you will find it difficult to fall asleep again after waking up.

查看答案和解析>>

科目:高中英語 來源: 題型:書面表達

5.假設(shè)你是中學(xué)生李華,你的美國筆友Tom想了解中國人的吃文化,請用英語給他回信.要點包括:中國菜食材廣泛;烹制方法多樣;不同地區(qū),菜的味道區(qū)別較大;
注意:
1.詞數(shù)100左右,
2.可適當(dāng)增加細(xì)節(jié),以使行文連貫.
Dear Tom
I'm glad to introduce chinese dishes for you.
Famous for its abundance and exquisite,Chinese food culture has occupied an important part in the nation's tradition cultures(高分句型一).China is of long history with a vast territory.Due to the diversity of the climate,products and customs,there are widely different food styles and taste in local regions.Through creation by past dynasties,the long standing cooking art has formed rich and colorful local dishes.Among them,"the eight major dishes"enjoys the upper reputation,which consists of Shangdong,Chekiang,Sichuan,Jiangshu,Guangdong,Hunan,F(xiàn)ujian and Anhwei.
Shandong dishes are divided into two factions as Tsinan and Jiaodong dishes.They are good at clear dishes,pure but not greasy.Sichuan dishes have enjoyed the fame that every dish has its own characteristic and none two share the same taste.They are also famous for pocked,peppery and savor taste.Chengdu and Chongqing dishes are two mail branches.Jiangsu dishes lay stress on the original taste with proper sweetness and salty.They consist of Yangzhou,Suzhou and Nanking branches.Chekiang dishes are both delicious and sweet smelling,both soft and slide,clean and not greasy.They consist of Hangzhou,Ningbo and Shaoxing branches(高分句型二).What's more,the steamed dishes and vegetable dishes have their own charms.Actually,Chinese dishes have earned world's fame.The Chinese eateries could be found everywhere throughout the world.Many foreigners regard having a Chinese meal as a high honor.
Your sincerely
Li hua.

查看答案和解析>>

科目:高中英語 來源: 題型:選擇題

5.Laplace,the astronomer,was still at work when death       him at seventy-eight.( 。
A.put up withB.catch up withC.line up withD.come up with

查看答案和解析>>

同步練習(xí)冊答案