根据语意写词语。

①植物因太阳炙热而失去水分。____

②为了办事或游览从一个地方走到另一个地方，多指较远的路程。 ____

③惊人的巨浪拍打着江岸。____

④强烈的阳光好像烈火一样。形容天气非常炎热。____

⑤说明含义、原因、理由等          ____

⑥以字为单位，按一定的秩序排列为人们提供音、形、意 的工具书。  ____

阅读题， 判断下列句子正误,。正确的写“T”,错误的写 “F”.

John: Excuse me, can I use your ruler, please?

Amy: Sure. Where is my ruler?

John: Is it in your book?

Amy: No, it isn't.

John: Is it under the desk?

Amy: No.

John: Is it on your bag?

Amy: Yes, Look! It's on my bag. Here you are!

John: Thank you.

①The ruler is John's. ____

②The ruler is in Amy's book.____

③The ruler isn't under the book.____

④John wants to use the ruler.____

⑤The ruler is on John's bag.____

函数f（x）=$\left\{\begin{array}{c}{a}^x\left(x<0\right)\\ \left(a-3\right)x+4a\left(x\ge 0\right)\end{array}\right.$满足f（x₁）﹣f（x₂）（x₁﹣x₂）＜0对定义域中的任意两个不相等的x₁，x₂都成立，则a的取值范围是____ 

文艺复兴时期多才多艺的文化巨人是____。