【题目】黄河入海水量l951年大约为500亿立方米，2010年大约为l40亿立方米，总体呈下降趋势。据此完成下列问题。
【1】导致黄河入海水量变化的主要原因最可能是
A．上游水电站增多 B．中游水土流失加剧
C．下游降水量减少 D．流域内用水量增多
【2】黄河入海水量减少带来的主要影响是
A．三角洲土壤盐渍化减轻 B．三角洲扩展速度减慢
C．入海口河水含沙量增加 D．河口地区的气候变干
【答案】
【1】D
【2】B
【解析】
试题分析：
【1】水电站主要是发电，其改变河流季节流量，但对径流总量影响不大，A错。水土流失改变的是河流含沙量，而不是径流量，B错。黄河径流主要来自中上游地区，下游入水量很小，影响很小，C错。随经济发展，黄河流域内工农业用水量大增，本地区极端缺水，只能大量利用黄河水，导致黄河入海流量锐减，D正确。
【2】，黄河入海水量大减，导致海水入侵，土壤盐渍化增加，而不是减轻，A错。来水量减少，携带来的泥沙量就少，三角洲扩展速度减慢，B正确。黄河入海水量减少，携带泥沙能力减弱，含沙量是二者的比值，因此，入海口河水含沙量不一定增加，C错。黄河来水量减少对河口湿地带来不利影响，但这对当地气候影响并非决定因素，D错。
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【1】“动车组”的出现体现了交通运输发展的（ ）
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【题目】请认真阅读下列短文，并根据所读内容在文章后表格中的空格里填入一个最恰当的单词。
注意：每个空格只填1个单词。
Do you think you could learn a language in an hour?
We know, we know! We would expect you to be skeptical. It’s ridiculous to think you can learn a language in 60 minutes. You wouldn’t even get through the As in a bilingual dictionary in that amount of time! Best-case situation: in an hour, most of us could probably stuff a few words and ready-made phrases into our short-term memory (with a high likelihood of forgetting it all by the following day). Accomplishing anything more than that in one hour? Impossible. Unless…
We posed the one-hour language challenge to four polyglots(通晓数种语言的人) who are experts on how to study languages. To keep the challenge from becoming completely impossible, we gave them a bit of a break: to learn Romanian in one hour. Why Romanian? Because it’s a Romance language and shares many similarities with the languages that the polyglots already know: French, Spanish, Italian, Portuguese. And to make sure their hour of learning was as effective as possible, all of them were assigned a personal Romanian tutor to help coach them on their way to success.
Although each polyglot has a different technique for picking up and remembering a new language, all four methods offer valuable insights to anyone, from casual learners to hard-core language enthusiasts.
Alex Rawlings — UK
"I’m a bit nervous. This is probably the craziest language-learning thing I’ve ever done, but learning languages has always been about fun. I expect that, after this, I’ll be prepared to have a simple chat over a coffee in Romanian. Is that reasonable?"
Method: Learn the verbs first
With only an hour until he had to start demonstrating his grasp of Romanian, Alex knew he had to start talking quickly. He chose to focus first on commonly used verbs and how to conjugate（动词变形） them. Once he had some verbs down, he could start collecting nouns from his tutor and plugging them in to make more interesting and relevant sentences.
Luca Lampariello — Italy
"Every time I have a conversation with native speakers, it really motivates me. Human contact is really important when learning a language."
Method: Start speaking right away
Speaking doesn’t mean speaking perfectly. Speaking even a little bit is a huge confidence boost. When you can say something in a new language and people actually understand you, it’s very motivating. Yes, you’ll make mistakes, but you’ll also learn faster than if you try to get it all perfect in your head first.
Michael Youlden — UK
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Method: Write everything down
Language learning is about recall; there’s no use learning something if you don’t remember it. Speaking new words aloud is very important, but so is writing them down — after all, words exist as sounds and in written form. Taking notes is a proven way to put new vocabulary and grammar into your memory. Writing supports memorizing which supports speaking... it’s a cycle. Plus, you have an easy reference when you want to review what you’ve learned.
Matthew Youlden — UK
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Cognates are words in different languages that look and sound similar and have the same meaning, due to a common origin. Almost every language combination contains cognates (even if two languages aren’t seemingly related), but languages from the same language family have many more. Whichever language you are learning, identify the familiar words and then use them to anchor the new words that aren’t so familiar. To use English as an example, because it’s a sort of Germanic-Romance hybrid, English already has many words that cognate with German, Dutch and Swedish on one hand, and on the other hand it also has lots of words that cognate with French, Spanish, Portuguese, Italian and, of course, Romanian!
Learn a language with courses designed by the experts. Start here, today!
Pick a language to learn. German, Spanish, Italian, French, Portuguese, and Swedish.
Four Learning Methods From Four Language 【1】：How To Make Meaningful Progress In Your First Hour | |
The people who are 【2】 | Four polyglots who are good at learning languages |
The language they are to study | Romanian |
【3】 limits 1 hour | 1 hour |
The reason for choosing the target language | Romanian has much in 【4】 with their familiar languages |
The 【5】to learning the language | the language Alex: give 【6】 to commonly used verbs; add some 【7】to make sentences |
Luca: attach great 【8】to speaking; don’t be afraid to make mistakes | |
Michael: take notes to keep new words and grammar in 【9】 | |
Matthew: try to【10】 similar words and patterns with familiar languages | |
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【题目】完形填空
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The secret to happiness is keeping busy, research has found.
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