题目内容

【题目】下列关于松嫩平原和长江三角洲自然地理环境对农业生产的影响,叙述正确的是( )

A.两区域地势平坦开阔,利于农业机械化的实施,是我国重要的商品粮基地

B.地带性土壤分别为红壤和水稻土

C.长江三角洲因河网密布,湖泊众多,适合种植水稻且耕地集中连片

D.松嫩平原农作物生长季节短,适合种植春小麦、玉米和大豆

【答案】D

【解析】

试题分析:本题考查区域自然地理环境对农业生产的影响。松嫩平原地势平坦开阔,土地集中连片分布,人口又相对较少,人均耕地较多,是我国农业机械化水平最高的地区之一,是我国重要的商品粮基地;长江三角洲,河网密布,土地较为分散,不适合机械化作业,A错误;东北的地带性土壤为黑土,南方的地带性土壤为红壤,水稻土属于人工土壤,B错误;长江三角洲因河网密布,湖泊众多,适合种植水稻但农田较为分散,C错误;松嫩平原地处我国东北中部,属于温带季风气候,温暖季节短,生长期也短,主要种植玉米、春小麦、甜菜和大豆,D对

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【题目】A

It might seem hard to imagine that a bad tooth could be deadly.But doctors in the Washington area say a twelveyearold boy died last month of a tooth infection that spread to his brain.They say it might have been prevented if the boy had received the dental care he needed.

Experts at the National Institutes of Health say good dental care should start at birth.They say breast milk is the best food for the healthy development of teeth.Breast milk can help slow bacterial growth and acid production in the mouth.

When baby’s teeth begin to appear,you can clean them with a wet toothbrush.Dentists say it is important to find soft toothbrushes made especially for babies,and use them very gently.

The use of fluoride (氟化物) to protect teeth is common in many parts of the world.This natural element is often added to drinking water supplies.The fluoride mixes with enamel(釉质),the hard surface on teeth,to help prevent holes,or cavities from forming.

But the American Academy of Pediatric Dentistry points out that young children often swallow toothpaste when they brush their teeth.The group notes that swallowing fluoridated toothpaste can cause problems.So young children should be carefully supervised when they brush their teeth.And only a small amount of fluoridated toothpaste,the size of a green pea,should be used.

Parents often wonder what effects sucking a thumb or sucking on a pacifier might have on their baby’s teeth.Dental experts generally agree that this is fine early in life.

The American Academy of Family Physicians says most kids stop suckingtheir thumbs by the age of four.If it continues,the group advises parents to talk to their child’s dentist or doctor.It could influence the correct development of permanent teeth.

【1】The boy with a bad tooth died because ________.

A.his tooth disease was very deadly

B.the doctor refused to treat him properly

C.he didn’t receive timely treatment

D.something was wrong with his brain

【2】All the following statements are good to teeth except that ________.

A.children live on breast milk every day

B.children begin to brush their teeth when they are old enough

C.children use fluoride toothpaste to brush their teeth

D.children form the habit of sucking their thumbs

【3】The underlined word “supervised” in the fifth paragraph means “________”.

A.watched and directed B.taught and helped

C.praised and advised D.led and pointed out

【题目】 完形填空(共20小题;每小题1.5分,满分30分)

阅读下面短文,从短文后各题所给的四个选项(A、B、C和D)中,选出可以填入空白处的最佳选项。

One of my favourite films is Mr Bean at a Fancy Restaurant. In the film, after being __21__ at his table,Mr Bean takes out a __22__,writes a few words on it,signs his name,puts it into an envelope and __23__ it on the table.After a moment,he looks at the __24__ but this time he looks surprised,as if he did not know it was there.He opens it to find a birthday card and delightedly puts it on the table for everyone to see.

When he looks at the __25__,an astonished look quickly __26__ on his face.He takes all __27__ out of his pockets,counts it and puts it in a saucer(碟子).He then looks from the menu to the money with __28__ until he finds one thing that makes him smile. He __29__ a dish called “steak tartare”. When the dish arrives,he is __30__ to discover that “steak tartare” is __31__ a raw(生肉的)hamburger.He _32__ an attempt to eat it,but it is __33__,from the look on his face,that he finds the taste really terrible.He cannot __34__ his feelings,except when the waiter asks whether everything is OK.He smiles and nods,__35__ that everything is fine. _36__ no one is looking,however,he__37__ himself hiding the raw meat anywhere he can__38__ ,inside a sugar bottle,a tiny flower vase and under a plate.He becomes so disappointed in the end that he __39__ hides some inside the__40__ of a sitting near him and throws some under the seat of the restaurant's violinist!

I like to watch Mr Bean on TV but I wouldn't want to meet someone like him in real life.

【1】A.treated B.invited C.accepted D.served

【2】A.magazine B.book C.card D.wallet

【3】A.throws B.places C.removes D.spreads

【4】A.waiter B.watch C.envelope D.table

【5】A.customers B.tablecloth C.surroundings D.menu

【6】A.appears B.grows C.turns D.shows

【7】A.cards B.money C.bills D.keys

【8】A.satisfaction B.care C.confidence D.concern

【9】A.buys B.orders C.washes D.breaks

【10】A.shocked B.pleased C.moved D.frightened

【11】A.mostly B.indeed C. actually D.nearly

【12】A.makes B.gets C.tries D.takes

【13】A.doubtful B.sure C.clear D.likely

【14】A.hide B.express C.prevent D.explain

【15】A.admitting B.recognizing C.indicating D.realizing

【16】A.Because B.When C.Once D.Although

【17】A.pretends B.helps C.prepares D.busies

【18】A.reach B.see C.get D.arrive

【19】A.rather B.almost C.exactly D.even

【20】A.hand B.purse C.blouse D.hair

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