题干

某地区调查了2~9岁的儿童的身高,由此建立的身高与年龄(岁)的回归方程为,下列叙述正确的是(  )

A:该地区一个10岁儿童的准确身高为142.63cm

B:该地区2~9岁的儿童每年身高约增加8.25cm

C:该地区9岁儿童的平均身高是134.38cm

D:利用这个模型可以准确地预算该地区每个2~9岁儿童的身高

上一题 下一题 0.0难度 选择题 更新时间:2019-10-31 04:06:28

答案(点此获取答案解析)

B

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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.