劈理的传统分类娄为（），（），（）；劈理的结构分类分为（），（）。

阅读短文，根据要求完成下列各题。

     There are many animals in Weihai Zoo.1 The elephants are from Africa. African elephants are big and

kind animals, 2 ________ there are only about 30.000 in Africa. Some people kill the elephants 3 ________

money. African elephants are tall. 4. They need (需要) to eat a lot of leaves and grass and they eat for hours

a day. They can also drink 40 gallons (加仑) of water at one time. Elephants have four teeth and two 5 tusks.

These tusks grow about seven inches (英寸) a year. They can be up to twenty feet (英尺) long! African

elephants live all over Africa The ears of a full-grown African elephants are about five to six feet long and four

feet wide. 6 My friend gives me two tickets. 7 You, Would, with, to, the, to, zoo, go, like, me?

1. 写同义句：The elephants ________ ________ Africa.

2. 选择恰当的连词：

    _______ 

   A. and  

   B. or  

   C. but   

   D. so

3. 选择恰当的介词：

   _______ 

    A. in 

    B. for

    C. at

    D. with

4. 翻译成汉语。

    ________________________________________________

5. 猜汉语意思。 

    _______

    A. 象牙

    B. 象鼻

    C. 象腿

    D. 象耳

6. 写同义句：

    My friend gives ________ ________ ________ ________.

7.  连词成句：

     ________________________________________________?

某油库有汽油m升,计划每天用去n升,实际用油每天节约了d升,这些油可以用 _________天,比原计划多用_________天

自我保健

栈和队列通常采用的存储结构是 【1】 。

按照硅氧四面体在空间的组合情况，可以把硅酸盐分成（）、（）、（）、（）四种。