读课文《胖乎乎的小手》，把句子补充完整，并回答问题。

①我有一双____的小手，我的小手会____、____、____。

②我会画画，我的小手还会____。

    Amy and Tom are going to have a busy day next Sunday. In the morning, Tom is going to visit his aunt and Amy is going to buy a cat in the pet shop. Tom is going to have lunch with his aunt. After lunch, Amy is going to borrow some magazines and story books in the library. Tom is going to buy a dictionary and a new CD in the bookstore. Finally, Amy and Tom are going to buy some apples and go home by subway together.

江西人喜欢吃辣椒，以“不怕辣”著称．辣椒中产生辣味的物质是辣椒素，不溶于水，易溶于有机溶剂，具有很强的镇痛和消炎作用，能够起到降血压和降胆固醇的功效，应用前景广阔．请回答有关问题：

（1）根据辣椒素的性质，我们可以用萃取的方法提取．萃取的效率主要取决于____ ，同时还受到原料颗粒的大小、紧密程度、含水量等条件的影响．萃取加热时需安装冷凝回流装置，其目的是____ ．萃取过程中应采用____ 加热，原因是____ 

（2）如果要用植物组织培养的方法对具有优良性状的辣椒进行大规模种植，在对辣椒外植体进行接种前，需要进行____ 、____ 两项工作．

（3）辣椒的组织培养过程依据的原理是____ ，整个培养过程要在____ 条件下进行．

“验证机械能守恒定律”的实验装置如图1所示采用重物自由下落的方法：