日本成人片在线_久久免费精品视频_国产午夜精品久久久久久免费视_校花撩起jk露出白色内裤国产精品_av影片免费在线观看_国产小视频在线看_最新av免费在线观看_99久久99久久精品国产片_欧美成人猛片aaaaaaa_蜜桃免费网站一区二区三区

精英家教網 > 高中英語 > 題目詳情

Plants are very important living things. Life could not go on if there were no plants. This is because plants can make food from air, water and sunlight. Animals and man cannot make food from air, water and sunlight. Animals get their food by eating plants and other animals. Therefore animals and man need plants in order to live. This is why we find that there are so many plants around us.

If you look carefully at the plants around you, you will find that there are two kinds of plants: flowering plants and non-flowering plants. Flowering plants can make seeds. The seeds are protected by the fruits. Some fruits have one seed, some have two, three or four, and some have many seeds. But a few fruits have no seeds at all. An example of a fruit without seeds is the banana fruit. Most non-flowering plants do not grow from seeds. They grow from spores(胚芽)。 Spores are very small. Some spores are so small and light that they can float in the air. We may say that spores are quite the same as seeds. When these spores are all on wet and shady places, they usually grow into new plants.

62.The main idea of the first paragraph is that ______.

A. plants are important for life              B. plants cannot grow without air

C. there are many plants in the world         D. we can not live without water

63.What can we infer(推斷) from the passage ?

A. Of all living things animals are most.    B. Spores are seeds.

C. All fruits of flowering plants have seeds.   D. Without plants,man will die out.

64.What is the meaning of the underlined word?

A. Kept.   B. Guarded.          C. Prevented.       D. Surrounded

65.This passage may be taken from______.

A. a medicine book               B. a novel

C. a science magazine             D. an experiment report

【小題1】A

【小題2】B

【小題3】B

【小題4】C


解析:

【小題1】主旨推理題。第一段說明了人和動物都需要植物。

【小題2】細節推理題。根據文章可以排除A.B.C。

【小題3】詞義推理題。Protect 與guard都是保護的意思。

【小題4】推理題。文章在第一段講了植物的重要性。第二段又說明了植物的種類以及植物的種子、胚芽等概念。是一篇科技說明文。

練習冊系列答案
相關習題

科目:高中英語 來源:福建省南平市2010屆高三下學期適應性考試英語試題 題型:閱讀理解


All plant cells are capable of taking up water. Even dead ones do to a certain degree. Absorption(吸收)of water by dead cell walls makes wood become larger. In common land plants, the living cells of roots take up most of the water. Land plants without roots do exist, however. Those greenish-yellow lichens(苔蘚)you see on rocks in the high mountains have no roots. Half a billion years ago, when water plants started to enter the land, the first land plants did not have roots.
Even among the flowering plants, one finds rootless forms. These flowering plants are “the higher plants” because they evolved(進化)recently and are thus considered higher on the evolutionary scale(進化度). In the Peruvian desert, there grows one of these rootless higher plants, a bromeliad. It is a relative of the pineapple. Even if this plant had roots, they would be of no use, because where the plant grows, it never rains. The plant gets its water only from the dew(露水)it collects at night, when its leaves cool off. Such rootless plants, of course, can be moved with ease, but they will only grow when they are placed out in the open. If they are placed too near a house, the radiation from the heat of the house prevents the leaves from cooling and so prevents dew from forming, and the plant dies. In the southern United States and in Puerto Rico, one sees bromeliads growing high above the streets on the insulation(絕緣物)of electric wires. These plants get their water from rain, and the only soil they ever come in contact with is the dust that may blow on their leaves.
64.From the passage we know that the evolutionary scale is graded according to _______ .
A. evolutionary cycles  B. heights and depths
C. time        D. kinds
65.The “bromeliad” is a plant that _______ .
A.has useless roots             B. is a pineapple
C.can grow anywhere  D. takes up water through its leaves
66.The most suitable title for this passage is “_______ ”.
A. Absorption of water by plants   B. Rootless plants
C. Plants in the desert       D. Higher plants

查看答案和解析>>

科目:高中英語 來源:2010年福建省古田五中高一下學期期末考試英語卷 題型:閱讀理解

If you want your land to keep fertile, you must try to stop soil from being carried away by water or wind. When soil is taken away by flowing water or blowing winds we call it soil erosion. Ways have been found to stop soil erosion, and this is known as soil conservation. One way of stopping soil erosion is to grow small plants such as grass. These plants are referred to a cover crops, whose roots hold the soil tightly together. The rain water can not wash away the soil. When trees and tall bushes are planted at the edges of an open field, soil erosion by strong winds can not take place. The trees and bushes, which act as a very big and firm wall, protect the open land from the winds. The way to stoop soil erosion on slopes is to build terraces on the slope of hillside and mountainside. When the slope of a hillside is cut into “step”, water carrying soil can not run straight down the terraces, which are used to slow down the speed of the flowing water containing much soil in it. In this way most of the soil in the water is left behind on the terraces, much soil in it.
【小題1】What takes place in soil erosion?

A.Flood happens to the fertile land
B.A large quantity of the soil loses away gradually.
C.Terraces are built on the slope of hillside or mountainside.
D.Plants are grown to protect the open land
【小題2】“Cover crops” in this passage means _________.?
A. grass        B. trees and bushes     C. plants life and an area
E.   covering plants that produce grain or vegetables
【小題3】Besides growing small plants, another method to fight against soil erosion is to ___________.
A.build terracesB.build wallsC.plant treesD.plant tall bushes
【小題4】According to the passage, trees and tall bushes are planted around an open field ________________.
A.because their roots hold soil tightly
B.to stop soil from being blown away by winds.
C.Because soil erosion causes terrible damages to crops
D.To keep the balance of nature
【小題5】Which of the following is the best title of the passage?
A.What Causes Soil Erosion
B.The Importance of Erosion
C.Rain Erosion and Wind Erosion
D.Erosion and the Way of Tight against Erosion

查看答案和解析>>

科目:高中英語 來源:2012-2013學年福建省東山縣第二中學高一上學期期中考試英語試卷(帶解析) 題型:閱讀理解

Scientists are trying to make the deserts ,which get very little rain, into good land again. They want to bring water to the deserts,so people can live and grow food. They are learning a lot about the deserts. But more and more of the earth is becoming desert all the time. Scientists may not be able to change the desert in time.
Why is more and more land becoming desert?Scientists think that people make deserts.People are doing bad things to the earth against the scientists’ wish.
Some places on the earth don’t get much rain. But they still don’t become deserts.This is because some green plants are growing there.Small green plants and grass are very important to dry places.Plants don’t let the sun make the earth even drier. Plants do not let the wind blow the dirt away.When a bit of rain falls,the plants hold the water. Without plants, the land can become desert more easily.
【小題1】Deserts ____________ .

A.never have any plants or animals in them
B.can all be turned into good land before long
C.are becoming smaller and smaller
D.get very little rain
【小題2】More and more land is becoming desert  because____________.
A.plants can’t grow there
B.there is not enough rain
C.people haven’t done what scientists wish them to do
D.scientists know little about the deserts
【小題3】Small green plants are very important to dry places because ________
A.they don’t let the sun make the earth even drier
B.they don’t let the wind blow the soil away
C.they hold water
D.All of the above.
【小題4】After reading this passage, we learn that _____________ .
A.plants can keep dry land from becoming desert
B.it is good to get rid of the grass in the deserts
C.all places without much rain will become deserts
D.it is better to grow crops on dry land than to cut them

查看答案和解析>>

科目:高中英語 來源:2013-2014學年廣東省廣州市高三1月調研測試英語試卷(解析版) 題型:其他題

閱讀下列應用文及相關信息,并按照要求匹配信息。請在答題卡上將對應題號的相應選項字母涂黑。

首先請閱讀關于不同月份天氣特征的信息。

A. February – it’s one of the most pleasant months of the year. Most days have clear, sunny skies and the average temperature is a very cool 14°C. With an average monthly rainfall of only 20mm it is also one of the driest months.

B. April – it’s a warm spring month with moderate temperatures averaging around 21°C, and it is very wet, with 200mm rainfall on average for the month.

C. June – although it is the start of summer with average temperatures reaching a hot 28°C, you will not see much sun as it is usually very cloudy. It is also one of the wettest months of the year with frequent rain and average monthly rainfall of 240mm.

D. August – it is the hottest month of the year with average temperatures of 30°C. Generally very sunny during the day, but with frequent heavy rain showers in the evening that make it the wettest month of the year with an average monthly rainfall of 280mm.

E. October – this mid-autumn month is still pleasantly warm with average temperatures of 20°C. Days are mostly cloudy and overcast although rainfall levels are relatively low, averaging 70mm for rain for the month.

F. December – it is one of the coldest months of the year with average temperatures of 13°C. Night can be very cold. Mostly sunny, with a moderate average monthly rainfall of 60mm.

以下是五種蔬菜的種植指引,請把蔬菜與適宜種植的月份匹配起來。

1.Corn – it requires a warm weather for strong and rapid growth. As it needs very wet soil, choose a time when there will be plenty of rain. High temperatures will cause corn to lose its sweet flavour.

2.Tomatoes – these popular plants are easy to grow as they can resist most pests and diseases. They require low temperatures, plenty of direct sunlight and dry conditions for best results.

3.Onions – these are a cold-season crop, easy to grow in the right conditions. They need a moderate amount of rain to keep the soil damp, but too much will cause them to rot. They should be planted during sunny period, as they grow best with plenty of direct sunlight.

4.Eggplants – these are tropical or subtropical, hot-season vegetables that need lots of direct sunlight. They grow best when the weather is very hot and there is plenty of water in the soil.

5.Potatoes – the taste of home-grown potatoes is far superior to store bought ones. They need a mild to warm conditions and relatively dry soil for best growth. They also require cloudy, overcast conditions for most of the time to prevent sunburn.

 

查看答案和解析>>

科目:高中英語 來源:0910年廣東省高一上學期期末考試 題型:閱讀理解

 

第三部分:閱讀(共兩節,滿分40分)

第一節:閱讀下面短文,從每題所給的A、B、C、D四個選項中,選出最佳選項,并把答案寫在答題卷上。(共15小題,每小題2分,滿分30分)

Bamboo is one of the nature’s 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 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 only 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 fact, the cables (繩索) 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 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 (鉆) can help to make the poor thirsty fields to be watered.

41.How is bamboo like grass?

A. It is thin and easy to cut.                                 B. It grows everywhere.

C. It grows quickly after its cut short.              D. It is short and green.

42.The sentence “while others may grow to more than 30 centimeters across.” means “Some other bamboo plants may grow to be very _______.”

A. short                     B. strong                            C. thick                                 D. tall

43.From the text we know ______.

A. most people call bamboo plant trees

B. a bamboo plant may grow 4.5 meters in three days

C. the bamboo plant changes its colors when it grows

D. a bridge held by bamboo cable was built thousands of years ago

44.Why did the engineers teach the poor farmers in Africa to make use of bamboo?

A. Because it is cheap.                                        B. Because it is colorful.

C. Because it drills fast.                                        D. Because it is used by Asians.

45.Which of the following is NOT true?

A. There are many different kinds of bamboo with different colors.

B. Cables made of bamboo can last for over a thousand years.

C. Bamboo can be used for buildings, bridges and watering projects(工程).

D. Bamboo plants are able to grow well in any part of the world.

 

查看答案和解析>>

同步練習冊答案
不卡视频在线观看| 亚洲色图都市激情| 国产成人精品优优av| 中文字幕日韩在线视频| 日韩欧美一区二区免费| 色欧美片视频在线观看| 亚洲午夜影视影院在线观看| 国产喂奶挤奶一区二区三区| 国产成人h网站| 久久精品久久久精品美女| 香蕉亚洲视频| 午夜亚洲视频| 妖精视频成人观看www| 欧美激情视频一区二区三区在线播放 | 成人av一区二区三区在线观看| 日韩不卡在线播放| 日本三级小视频| 日韩精品视频免费看| 不卡的免费av| 日本在线小视频| 久久精品视频国产| 日韩av免费网址| www..com国产| 一级片视频在线观看| 欧美一级片免费在线观看| 精品无码人妻一区二区三区| 青青草免费av| 九九热这里有精品视频| 免费视频网站www| 国产精品成人网站| 欧美 日韩 精品| 中文字幕第31页| 国产喷水福利在线视频| 隣の若妻さん波多野结衣| 色噜噜一区二区三区| 天海翼一区二区三区四区在线观看| 亚洲av无码专区在线| 天天操天天干天天| 欧美少妇另类| 激情视频在线观看| 国产精品蜜芽在线观看| 亚洲精品.com| 日韩在线成人| 成人高清av| 国内激情久久| 乱一区二区av| 99精品视频中文字幕| 国产精品久久久久久久久晋中| 亚洲欧美日韩在线播放| 欧美视频第一页| 日韩一区二区三区免费看| 亚洲国产精彩中文乱码av在线播放| 精品亚洲一区二区三区| 按摩亚洲人久久| 全球成人中文在线| 国产不卡一区二区在线观看 | 轻轻草成人在线| 成人免费av在线| 国产精品久久毛片a| 五月激情六月综合| 欧美精品精品一区| 亚洲午夜久久久影院| 久久久久久久久久久免费| 国产精品久久久久久久久久东京 | 法国空姐电影在线观看| 免费中文字幕在线| 国产精品久久久国产盗摄| 超碰97在线免费| 国产黄色小视频在线| 欧美黄色三级| 国产一区2区| 国产美女一区| 99re热视频这里只精品| 亚洲高清不卡在线观看| 欧美成人伊人久久综合网| 日韩在线免费视频| 国产免费一区二区三区在线观看| 精品一区日韩成人| 又粗又黑又大的吊av| 捆绑凌虐一区二区三区| 国产污片在线观看| av女名字大全列表| av午夜在线观看| 国产一区二区三区亚洲| 亚洲国产免费| 久久久久久久久久久久久久久99 | 日本一级黄色录像| 天堂中文在线看| 国产一区二区网| 亚洲男同性视频| 欧美视频一区二区| www.欧美精品一二三区| 成人免费激情视频| 男人天堂网站在线| 粉嫩av懂色av蜜臀av分享| 国产在线观看免费av| 午夜性色福利视频| 一本大道色婷婷在线| 久久不见久久见中文字幕免费| 日韩极品在线观看| 亚洲日本丝袜连裤袜办公室| 欧美一区二区福利在线| 国模视频一区二区三区| 欧美三日本三级少妇三99| 亚洲这里只有精品| 国产乡下妇女做爰视频| 污视频在线看操| 亚洲精品大全| 99精品视频免费全部在线| 欧美国产精品中文字幕| 欧美mv日韩mv亚洲| 国产精品欧美风情| www.射射射| 小泽玛利亚一区| 中文乱码字幕高清在线观看| 成人线上视频| 99成人免费视频| 国产精品国产三级国产三级人妇| 精品嫩草影院久久| 国产三级精品网站| 成人性做爰aaa片免费看不忠| 潘金莲一级黄色片| 中文字幕在线第一页| 一区二区三区无毛| 日本成人在线一区| 色综合久久88色综合天天免费| 欧美精品一区三区| japanese在线视频| 亚洲精品天堂网| 在线中文av| 国产精品115| 国产福利不卡视频| 日韩一级片在线观看| 国产精品免费久久久久久| 国产又黄又大又粗视频| 国产福利拍拍拍| 欧美性天天影视| 日韩国产综合| 中文字幕一区二区三区av| 亚洲小视频在线| 欧美一区激情视频在线观看| 91黄色免费视频| 天天综合网在线观看| 国产精品一级在线观看| 麻豆精品视频在线观看| 欧美日韩午夜在线| 国产综合视频在线观看| 天天干天天玩天天操| 亚洲视频久久久| 精品国产免费人成网站| 视频一区在线播放| 欧美午夜不卡在线观看免费| 国产裸体写真av一区二区 | 欧美粗暴jizz性欧美20| 亚洲毛片av在线| 久久人人爽人人爽人人片av高请| 国产二区视频在线| 欧美brazzers| 久久婷婷五月综合色丁香| 国产一区二区不卡| 亚洲成人亚洲激情| 日本一区二区久久精品| 三级黄色录像视频| av大全在线| 国产日韩精品视频一区二区三区| 色婷婷综合中文久久一本| 国产精品久久久久久五月尺| 亚洲视频在线不卡| 波多野结衣av在线| 欧洲激情综合| 亚洲一区影音先锋| 国产精品视频资源| 精品人妻伦一二三区久| 伊人色综合网| 伊人久久大香线| 在线视频欧美区| av日韩中文字幕| 夫妇交换中文字幕| 色www永久免费视频首页在线| 国产精品三上| 日韩精品在线一区| 日韩区国产区| 欧美一级特黄视频| 国产精品麻豆| 亚洲国产精品成人久久综合一区| 欧美精品激情在线观看| 国产欧美一区二| 中文视频在线| 国产专区一区| 欧美精品自拍偷拍| 色一情一乱一伦一区二区三区| 精品在线视频免费观看| 欧美日韩精品一区二区三区视频| 菠萝蜜视频在线观看一区| 精品国偷自产在线视频| 97公开免费视频| 轻轻色免费在线视频| 欧美一区网站| 制服视频三区第一页精品| 日本不卡一区| 精品免费囯产一区二区三区| 国产一区一区| 亚洲美女视频在线观看| 亚洲japanese制服美女| 精品少妇一区二区三区密爱| 九色porny视频在线观看| 九色|91porny| 色婷婷综合成人av| 91丝袜超薄交口足| 一本一道波多野毛片中文在线| 日本网站在线观看一区二区三区 | 久久91在线| 懂色av一区二区三区| 精品无人乱码一区二区三区的优势| 免费在线观看国产精品| vam成人资源在线观看| 亚洲日穴在线视频| 国产免费高清一区| 国产性猛交╳xxx乱大交| 巨人精品**| 在线观看视频91| 在线看无码的免费网站| 97人妻一区二区精品免费视频| 精品久久久中文字幕| 6080yy午夜一二三区久久| 国产a级黄色大片| 熟妇高潮一区二区三区| 9国产精品视频| 一区二区三区国产视频| 亚洲一区二区偷拍| 亚洲wwwww| 久久一区二区视频| 成人午夜一级二级三级| 人人干人人干人人干| 一区二区三区韩国免费中文网站| 欧亚一区二区三区| 成人毛片100部免费看| 3dmax动漫人物在线看| 视频在线观看一区二区三区| 日韩综合中文字幕| 一级欧美一级日韩片| 原纱央莉成人av片| 一区二区三区四区高清精品免费观看 | 无码人妻精品一区二区三区99不卡| 视频在线这里都是精品| 久久精品在这里| 成人综合av网| 亚洲天堂网在线观看视频| 91精品一区二区三区综合| 日韩精品极品视频| 亚洲女则毛耸耸bbw| www.精品| 无码av免费一区二区三区试看 | 日韩av一卡二卡三卡| ****av在线网毛片| 亚洲精品第一国产综合野| 欧美日韩综合另类| 22288色视频在线观看| 国产一区在线观看麻豆| 国产日本欧美视频| 夜夜躁日日躁狠狠久久av| 欧美日韩视频| 欧美成人性生活| 黄视频网站免费看| 精品盗摄女厕tp美女嘘嘘| 亚洲激情视频网站| 亚洲婷婷在线观看| 综合久久伊人| 91精品国产综合久久精品性色| 亚洲成人av免费看| 在线观看特色大片免费视频| 亚洲h在线观看| 久草免费福利在线| 午夜av在线播放| 亚洲激情成人在线| 白白操在线视频| 欧美边添边摸边做边爱免费| 国产精品热久久久久夜色精品三区| 欧美三级网色| 国内在线精品| 国产精品久久久久久久久免费丝袜 | 8x国产一区二区三区精品推荐| 911国产精品| 国产精品欧美性爱| 日韩欧美中文在线观看| 欧美哺乳videos| 色噜噜在线观看| 日韩大片在线免费观看| 亚洲欧洲国产伦综合| 国产精品理论在线| 日韩在线理论| 久久久免费观看视频| 久草视频在线观| 玖玖精品视频| 91网站在线看| 深爱激情五月婷婷| 久久久亚洲高清| 另类中文字幕网| 国产中文字幕精品| 国产福利视频一区二区| 国产乱淫a∨片免费视频| 激情久久久久久久久久久久久久久久| 国产欧美日韩综合精品| 国产日韩免费视频| 高清成人免费视频| 亚洲午夜精品一区二区| 国产精品一区二区三区视频网站| 一区二区在线观看视频 | 亚洲精品大尺度| 亚洲一级理论片| 亚洲字幕久久| 日本一区二区在线免费播放| 91精品中文字幕| av动漫一区二区| 永久免费网站视频在线观看| 欧美人与禽性xxxxx杂性| 日本精品一级二级| 污污污www精品国产网站| 亚洲成在人线免费观看| 色综合久久久久久中文网| 日日噜噜噜噜人人爽亚洲精品| 男人的天堂亚洲一区| 韩国一区二区三区美女美女秀| 国产尤物视频在线| 欧美日韩另类字幕中文| 国产黄色一区二区三区| 国产精品一区二区99| 2019亚洲男人天堂| 亚洲精品字幕在线| 中文字幕av在线一区二区三区| 91成人在线观看喷潮教学| 国产91在线播放精品| 亚洲欧美日韩网| 黄色在线观看国产| 国产精品一区二区在线观看网站| 亚洲精品中文综合第一页| 国产v日韩v欧美v| 精品少妇一区二区三区免费观看| 天天色天天综合| 久久综合网络一区二区| 青青成人在线| 樱桃视频成人在线观看| 日韩经典第一页| 国产又粗又猛又黄视频| av一本久道久久综合久久鬼色| www.射射射| 在线日韩成人| 97久久久免费福利网址| 午夜视频免费在线| 亚洲国产精品综合小说图片区| 69xxx免费视频| 欧美三级黄美女| 国产日产精品一区二区三区四区| 成人av免费| 亚洲精品一线二线三线无人区| 欧美亚洲天堂网| 成人精品一区二区三区四区| a在线视频观看| 天天躁日日躁狠狠躁av麻豆男男| 中文字幕一区二区三区免费看 | 亚洲一区二区视频在线播放| 国产亚洲一区字幕| 嫩草av久久伊人妇女超级a| 妖精视频一区二区三区免费观看| 国产国语videosex另类| 九一在线视频| 在线播放欧美女士性生活| 精品处破女学生| 成人app下载| 成人免费xxxxx在线视频| 国产欧美日韩精品一区二区三区| 成人精品一区二区三区电影免费 | 一本一道久久a久久精品蜜桃| 1卡2卡3卡精品视频| 国内在线免费视频| 国产午夜精品全部视频播放| 91美女精品网站| 一区二区免费在线| 在哪里可以看毛片| 麻豆成人91精品二区三区| 免费av手机在线观看| 欧美大片网址| 亚洲a级在线播放观看| 高清视频在线观看三级| 精品国产欧美成人夜夜嗨| 天天综合在线视频| 欧美综合色免费| 日韩大片免费在线观看| 久久久五月婷婷| 成年女人免费视频| 奇米精品一区二区三区在线观看一| 日本熟妇人妻xxxx| 欧美www视频在线观看| 看欧美日韩国产| 欧美日韩午夜电影网| 成人做爰www免费看视频网站| 黑森林国产精品av| 久久免费福利视频| 在线看免费av| 色777狠狠综合秋免鲁丝|