精品一区二区免费在线观看_国产精品久久久久久av福利软件_97成人精品区在线播放_国内成人精品一区

精英家教網 > 初中英語 > 題目詳情

________ trees must be planted every year.


  1. A.
    Thousands of
  2. B.
    Thousand of
  3. C.
    Thousands
  4. D.
    Thousand
A
解析:
表示一個具體數字時,thousand一詞不加s,也不與of連用,首先排除B和D.表示一個不確定的數字時,thousand后要加s,也要與介詞of連用,意思是“數千的”,故選A.
練習冊系列答案
相關習題

科目:初中英語 來源:2013屆遼寧省建平縣九年級上學期期中考試英語試卷(帶解析) 題型:閱讀理解


In 1620,about half the USA was covered by forests .Today the forests have almost gone .A lot of good land has gone with them ,leaving only sand .China doesn’t want to copy the USA’s example.We’re planting more and more tress .We’ve built the “Great Green Wall ”of tress across northern pat of our country .The “Great Green Wall”is 7,000 kilometers long ,and between 400 and 1,700 kilometers wide .It will stop the wind from blowing the earth away .It will stop the sand from moving towards the rich farmland in the south .More “Great Green Wall ”are needed .Trees must be grown all over the world. “Great Green Wall ”will make the world better .
根據短文內容,選擇正確答案。
【小題1】In 1620 ,about_____ the USA was covered by forests

A.a thirdB.halfC.to thirdsD.a fourth
【小題2】 A lot of good land has gone with _____.
A.sand B.waterC.windD.forests
【小題3】 The “Great Green Wall”In China is _____long
A.7,000 kilometersB.1,700 kilometers
C.7,000 metersD.400 kilometers
【小題4】 Trees must be grown in _____.
A.ChinaB.the USA
C.some countriesD.every part of the world
【小題5】_____ will make the world better .
A.the Great WallB.Tall buildings
C.Great Green WallD.Flowers and glass

查看答案和解析>>

科目:初中英語 來源:2012-2013學年浙江省九年級上學期第二次月考英語試卷(解析版) 題型:單項填空

These young trees must ______.

A. look after well          B. be look after well 

C. be looked well         D. be looked after well

 

查看答案和解析>>

科目:初中英語 來源:2011-2012學年浙江省杭州市中考模擬英語試卷 題型:單項填空

1These young trees must        .

A. look after well                   B. be well looked after

C. take good care of                 D. be taken good care

 

查看答案和解析>>

科目:初中英語 來源:2011年北京市密云縣中考英語一模試卷 題型:閱讀理解

Farmer Ed Rawlings smiles as he looks at his orange trees. The young oranges are growing well in Florida’s weather. Warm sunshine and gentle rains, along with Ed Rawlings’ expert care, will produce a good crop(收成)of oranges this year.

However, Ed has to guard against Florida’s changeable winter weather. In January and February, temperatures can destroy Ed’s entire orange crop. Having farmed in Florida for the past 35 years, Ed is prepared for the frost(霜). When temperatures drop below freezing, Ed tries to save his crop by watering his orange trees. The water freezes and forms a thin layer(層) of ice around the trees. Strange as it may sound, this thin layer of ice actually keeps the fruit warm.

What happens is simple. When the trees are watered, the water loses heat and becomes ice. The warmth of the heat it loses is taken in by the fruit and keeps its temperature at a safe level. Ed has effectively used this method to save many orange crops.

But Ed still faces difficulties. The trees must be watered at the exact moment the temperature drops to the freezing point. Also, just the right quantity(數量)of water must be used. Too much water can form a thicker layer of ice that will break the tree’s branches(樹枝). Another difficulty is that wind blows away the heat, so Ed has to worry about not only when but also how often his trees should be watered, and how much water should be used.

Computer technology may help Ed with some of these worries. With equipment(設備), air and soil temperatures and wind speed can be measured. The information is fed into a computer which can calculate(計算) when the temperature will drop below freezing. The computer can correctly decide the quantity of water to be used and how frequently(  ) the trees should be watered. Ed finds looking after his orange trees a lot easier with the help of a computer, and, his customers will have the benefits(利益) of computer—age oranges. 

1.The passage is mainly about______.

A. a farmer expert cares for his orange trees

B. the different uses of computers

C. growing oranges in Florida’s changeable weather

D. different ways of frost protection

2.Ed tries to protect his crop by______.

    A. using a wind machine to drive away the cold air

    B. equipping his orange trees with a computer

    C. watering it at the proper time

    D. picking his fruit at the first sign of frost

3. According to the passage, the computer technology______.

    A. removes the need for frost protection

    B. prevents temperature from dropping

    C. tells farmers why outdoor temperatures change

    D. helps the farmer get a better harvest

 

查看答案和解析>>

同步練習冊答案
精品一区二区免费在线观看_国产精品久久久久久av福利软件_97成人精品区在线播放_国内成人精品一区
欧美精品色综合| 亚洲天堂a在线| 成人永久免费视频| 国产精品大尺度| 色婷婷综合久久久久中文一区二区| 有码一区二区三区| 欧美日韩久久久| 久久国产三级精品| 国产女主播在线一区二区| 97精品久久久午夜一区二区三区 | 亚洲欧美日韩国产一区二区三区| 日本高清不卡aⅴ免费网站| 亚洲一级在线观看| 日韩免费成人网| 国v精品久久久网| 亚洲狠狠丁香婷婷综合久久久| 欧美老肥妇做.爰bbww| 国精产品一区一区三区mba桃花 | 欧美一a一片一级一片| 日韩av一级片| 国产欧美综合在线观看第十页| 99国产精品久久久久久久久久| 亚洲成精国产精品女| 欧美va亚洲va在线观看蝴蝶网| 粉嫩绯色av一区二区在线观看| 亚洲码国产岛国毛片在线| 欧美伦理视频网站| 国产精品456露脸| 一区二区欧美视频| 精品久久一区二区三区| kk眼镜猥琐国模调教系列一区二区| 亚洲午夜成aⅴ人片| 欧美xxxx在线观看| 91网页版在线| 久久99精品久久久久久国产越南| 国产精品欧美一级免费| 欧美日韩在线播放| 国产精品99久| 亚洲国产美国国产综合一区二区| 久久综合精品国产一区二区三区| 91丨porny丨国产入口| 蜜臀av性久久久久蜜臀aⅴ流畅| 国产精品视频你懂的| 欧美精品久久一区二区三区 | 国产精品一区二区久久不卡| 亚洲蜜臀av乱码久久精品| 日韩亚洲国产中文字幕欧美| 99久久国产免费看| 精品一区二区在线视频| 亚洲精品亚洲人成人网在线播放| 精品国精品自拍自在线| 欧美中文字幕久久| 国产激情视频一区二区在线观看| 亚洲成人午夜电影| 国产精品美女久久久久久久久 | 亚洲综合免费观看高清完整版在线| 日韩精品一区二区三区在线| 色综合久久九月婷婷色综合| 经典三级视频一区| 午夜电影一区二区| 日韩美女视频一区| 久久色中文字幕| 9191久久久久久久久久久| 不卡av在线免费观看| 裸体歌舞表演一区二区| 伊人色综合久久天天人手人婷| 久久蜜桃香蕉精品一区二区三区| 欧美人牲a欧美精品| 91视频精品在这里| 丰满放荡岳乱妇91ww| 久久电影网电视剧免费观看| 亚洲午夜精品在线| 成人免费在线观看入口| 久久久久久久久久久久久久久99| 51精品久久久久久久蜜臀| 色婷婷综合久久久久中文一区二区| 国产精品自拍一区| 久久精品国产第一区二区三区| 亚洲国产视频直播| 亚洲精品视频免费观看| 国产精品美女www爽爽爽| 久久蜜臀精品av| 欧美mv日韩mv| 欧美一区二区不卡视频| 欧美午夜精品一区二区蜜桃| 国产iv一区二区三区| 国精产品一区一区三区mba视频 | 亚洲综合视频在线| 亚洲日穴在线视频| 国产精品视频免费看| 久久久精品影视| 久久新电视剧免费观看| 日韩欧美不卡在线观看视频| 3d成人h动漫网站入口| 欧美日韩一区二区三区在线看| 色综合久久久久综合99| 99精品欧美一区| 成人av第一页| 成人不卡免费av| 波波电影院一区二区三区| 国产成人免费在线视频| 国产精品亚洲综合一区在线观看| 久草热8精品视频在线观看| 看片网站欧美日韩| 久久精品av麻豆的观看方式| 奇米亚洲午夜久久精品| 日韩电影免费在线看| 日韩高清国产一区在线| 日本怡春院一区二区| 免费日韩伦理电影| 美国欧美日韩国产在线播放| 美女视频免费一区| 狠狠狠色丁香婷婷综合久久五月| 激情小说亚洲一区| 国产精品影音先锋| 成人精品视频.| 91免费国产在线观看| 一本到高清视频免费精品| 在线视频国内自拍亚洲视频| 91成人看片片| 欧美日本韩国一区二区三区视频 | 欧美午夜精品一区二区三区| 欧美日韩综合在线免费观看| 欧美日本在线看| 日韩一级片网址| 久久综合久久鬼色| 中文字幕欧美日韩一区| 国产精品第一页第二页第三页| 亚洲素人一区二区| 亚洲成av人片www| 日本不卡一区二区三区高清视频| 美女在线视频一区| 国产精品一区三区| 成人ar影院免费观看视频| 色88888久久久久久影院按摩| 欧美日韩免费观看一区二区三区 | 欧美日韩久久一区| 欧美videossexotv100| 国产欧美日韩在线看| 亚洲另类在线视频| 日韩精品电影一区亚洲| 黑人精品欧美一区二区蜜桃| 风流少妇一区二区| 欧日韩精品视频| 日韩区在线观看| 中文字幕欧美日韩一区| 亚洲资源中文字幕| 蜜桃av一区二区三区| 成人综合在线网站| 欧美午夜精品免费| 精品国产乱码久久久久久夜甘婷婷| 国产欧美综合在线| 亚洲一区二区五区| 久久99久久99小草精品免视看| 成人在线一区二区三区| 欧美日韩亚洲综合在线 | 樱桃视频在线观看一区| 日韩高清电影一区| 国产不卡在线播放| 欧美网站大全在线观看| 2023国产精品视频| 亚洲精品一二三| 精品在线免费观看| 色婷婷一区二区三区四区| 3d动漫精品啪啪1区2区免费 | aaa欧美色吧激情视频| 欧美日韩精品一区二区天天拍小说 | 26uuu另类欧美| 亚洲精品大片www| 韩国三级中文字幕hd久久精品| 91免费视频网| 欧美成va人片在线观看| 亚洲猫色日本管| 韩国v欧美v日本v亚洲v| 欧美自拍偷拍午夜视频| 久久欧美一区二区| 亚洲影视在线播放| 国产白丝网站精品污在线入口| 欧美日韩一区在线| 国产精品女主播在线观看| 亚洲1区2区3区视频| 成人美女视频在线看| 日韩一级片在线观看| 亚洲精品乱码久久久久| 国产一区二区主播在线| 欧美私模裸体表演在线观看| 久久精品综合网| 日本特黄久久久高潮| 91在线视频播放| 久久久av毛片精品| 日韩激情在线观看| 色欧美日韩亚洲| 欧美高清在线视频| 麻豆精品视频在线观看视频| 91福利精品第一导航| 中文字幕欧美日韩一区| 久久99精品国产麻豆不卡| 欧美亚洲一区二区在线| 国产精品九色蝌蚪自拍| 国产一区二区不卡在线|