分析 一項對麻雀睡眠的研究表明,睡眠和學習能力之間的關系可能比認識到的更復雜.
威斯康星大學麥迪遜分校的尼爾斯C•拉特堡希望了解麻雀如何應對如此少的睡眠.他和他的團隊將八只野生鳥類帶入實驗室,并觀察了一年.他們發(fā)明了一種游戲,以檢查鳥類可以學到多好.在游戲中,麻雀不得不以一定的順序啄三個按鈕來獲得食物.科學家發(fā)現(xiàn),鳥類學習正確的按鈕的能力順序依賴于兩件事:一年的時間和鳥的睡眠量.
在遷徙季節(jié),麻雀在夜間表現(xiàn)不安,睡眠比平時少得多.即使如此,他們也能夠知道如何快速獲得食物,就像他們有一個規(guī)律的睡眠一樣.在遷移季節(jié)之外,他們發(fā)現(xiàn)麻雀比平常睡得更少,學習如何獲得食物的能力比有定期睡眠的鳥更困難.
結果表明,麻雀在遷移季節(jié)可以比平常有更少的睡眠.如果科學家可以找到原因,他們可以向麻雀學習,并找到幫助人們處理更少的睡眠的方法.直到科學家完全理解睡眠和學習之間的關系,最好是在準備考試時獲得充足的睡眠.
解答 31.D.判斷推理題.根據(jù)If scientists can find out why,they may learn from sparrows and find ways of helping people deal with getting much less sleep可知,并不知道麻雀為什么在遷徙季節(jié)如何處理睡眠不足的問題.故選D.
32.B.判斷推理題.根據(jù)it's better to get plenty of sleep when preparing for an exam可知,考試前保持足夠的睡眠是最好的.故選B.
33.A.文章主旨題.通過閱讀全文可知,本文是科學家通過研究麻雀的睡眠來揭示睡眠和學習的關系.故選A.
點評 做題時先把文章快速通讀一遍抓住其大意.對于涉及細節(jié)理解的題目,要結合問題從文中找到與之相關的句子,抓住關鍵詞和細節(jié)進行選擇,和選項進行比對快速選出答案.必要時要聯(lián)系上下文,即可選出正確答案.
科目:初中英語 來源: 題型:填空題
查看答案和解析>>
科目:初中英語 來源: 題型:完形填空
41.A.played | B.bought | C.sold | D.gave |
42.A.quietly | B.sadly | C.happily | D.loudly |
43.A.old and young | B.bigand small | C.right and wrong | D.long and short |
44.A.nothing | B.something | C.everything | D.a(chǎn)nything |
45.A.in | B.out | C.over | D.from |
46.A.easy | B.unusual | C.strange | D.a(chǎn)ttractive |
47.A.when | B.until | C.a(chǎn)fter | D.before |
48.A.so | B.because | C.until | D.if |
49.A.much | B.a(chǎn)lso | C.many | D.too |
50.A.will make | B.is making | C.has made | D.is made |
51.A.but | B.or | C.yet | D.a(chǎn)nd |
52.A.should | B.can | C.must | D.need |
53.A.clothes | B.books | C.flowers | D.computers |
54.A.more popular | B.much popular | C.most popular | D.popularest |
55.A.watch | B.computer | C.car | D.bike. |
查看答案和解析>>
科目:初中英語 來源: 題型:閱讀理解
Alice Hamilton,17 I'm going to help the Forest Center build new hiking paths in the mountains with my brother,Mike Brown.It's going to be fantastic.We will spend the whole summer living in a tent and breathing the fresh mountain air.We're going to sleep under the stars.It will be a nice sport,and we will be able to do something good at the same time! |
Jason Moore,18 This summer,I'll volunteer with Special House Program.They build good,low-cost houses and sell them to the poor.They'll teach me what to do,so I am going to help people and also have a chance to learn how to build houses. |
Trish Anderson,16 I'm going to teach children who have trouble in reading.I'll work for a program called Reading For Life.Every day,I'm going to help children choose and read books that they like.I want to be a teacher,and I love children and reading,so this is going to be a great experience for me. |
查看答案和解析>>
科目:初中英語 來源: 題型:閱讀理解
查看答案和解析>>
科目:初中英語 來源: 題型:閱讀理解
查看答案和解析>>
科目:初中英語 來源: 題型:完形填空
16.A.print | B.find | C.draw | D.take |
17.A.festival | B.week | C.night | D.Sunday |
18.A.little | B.none | C.few | D.most |
19.A.nice | B.different | C.same | D.best |
20.A.thankful | B.pleased | C.sorry | D.a(chǎn)fraid |
21.A.sad | B.interested | C.careful | D.a(chǎn)ngry |
22.A.chickens | B.dogs | C.cats | D.turkeys |
23.A.hurt | B.protect | C.harm | D.smile |
24.A.a(chǎn)nother | B.other | C.others | D.the other |
25.A.tile | B.speech | C.discussion | D.talk |
26.A.what | B.where | C.which | D.whose |
27.A.high | B.low | C.hard | D.beautiful |
28.A.walked | B.said | C.sang | D.taught |
29.A.Touch | B.Look | C.Take | D.Push |
30.A.mother's | B.classmate's | C.teacher's | D.friend's. |
查看答案和解析>>
科目:初中英語 來源: 題型:閱讀理解
查看答案和解析>>
科目:初中英語 來源: 題型:選擇題
A. | will go | B. | goes | C. | won't go |
查看答案和解析>>
湖北省互聯(lián)網(wǎng)違法和不良信息舉報平臺 | 網(wǎng)上有害信息舉報專區(qū) | 電信詐騙舉報專區(qū) | 涉歷史虛無主義有害信息舉報專區(qū) | 涉企侵權舉報專區(qū)
違法和不良信息舉報電話:027-86699610 舉報郵箱:58377363@163.com