题干

关于我国地形、地势说法错误的是(    )

A:喜马拉雅山北侧分布有青藏高原

B:我国地形以平原为主

C:山区约占全国陆地面积的三分之二

D:我国的地势有利于太平洋湿润气流的深入

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答案(点此获取答案解析)

B

同类题1

根据短文内容,从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。

    It is necessary but difficult for English beginners to memorize new words, and long lists of words seem to make the mission impossible. They are puzzled why they try to memorize words with great efforts but forget them easily. That's why there are often inquiries about how to memorize new words.

____ Here are some tips to help.

    ____ We too often separate the process of new words memorization from pronunciation. In fact these two can be combined and each will enhance the other. Saying the word to ourselves helps activate aural(hearing) memory, which helps the memory. ____ The more familiar we are with the word,

the greater chance we will have to keep it for the rest of our life.

    Never memorize single English words. ____ Relate the word to terms we already know, either as synonym or antonym. For example, the word "gargantuan" is similar in meaning to words "gigantic", ”huge" and "large". Make a sequence of words: "small, medium, large, gigantic, and gargantuan".

    Create a mental image of the word that involves strong emotions. Think, "The gargantuan whale is going to swallow me whole".

    Learning English words requires action. Complaining how difficult it is to memorize new words will be of little help. ____ Have a try with ten words a day and you will see what a difference you will make in our English learning.

A. So take action right now.

B. Speak the word while memorizing it.

C. Memorizing new words is very important.

D. Actually, some have given up learning new words.

E. In fact, learning new words needn't be that difficult.

F. Make as many associations and connections as possible.

G. The sound of word helps us recall the spelling and familiarizes us with the word.

同类题2

阅读下列说明文,完成下列各题

       ①生活在海洋中的鱼类,也有自己的医生﹣﹣种体态小巧,行动轻盈的小鱼。鱼医给鱼治病,不是通过用药,而是州尖尖的嘴巴为病鱼清除细菌和坏死的细胞。实际上鱼医是以病鱼身上的寄生虫为美味佳肴的。

       ②病鱼就诊时,必须头朝下,尾巴朝上,笔直地悬浮在水中。如果是喉咙生病,那么病鱼就得乖乖地张大嘴巴让鱼医钻进嘴里去。病鱼会不会把鱼医吃掉呢,根据海洋学家的观察分析,这种事情不会发生。即使是遇上敌害,病鱼也会将鱼医吐出后再逃之夭夭。

       ③海年学家试图在鱼医经常活动的水域将鱼医捉走,结果,前往求医的大为减少。令人惊讶的是,鱼医失踪两周后,该水域的很多鱼都染上疾病,一些鱼的鳞、腮和鳍上开始出现脓肿。海洋学家又做了一个试验,在一些鱼池中放有鱼医,而在另一些鱼池中不放鱼医。结果,有鱼医的水池里,鱼都不生病,而在没有鱼医的水池中,疾病迅速蔓延。

       ④鱼医治病的速度快得令人难以置信。一位海洋生物学家留连续6小时在水中观察鱼医治病,经他统计,一条鱼医在这6小时内竟医治了300条病鱼!

       ⑤海洋学家还发现,拜访鱼医的病鱼以雄鱼居多。有时,一条雄鱼一天中竟几次找不同的鱼医看病。经过观察发现,原来是雄鱼间为了争夺雌鱼,常常发生激烈的“情战”,因而负伤的机会较多。此外,海洋学家还发现,有些雄鱼根本没有负伤,也没有病,但它们仍然频繁地去找鱼医。对此他们猜想,雄鱼们可能是为了取悦雌鱼,而找鱼医为自巴“美容”的。