Can plants talk？Modern research has found something amazing：they do communicate with each other.
    It has been known that some plants' communication is like a warning.This happens when a plant gets attacked by insects.The plant gives out chemicals （化學物質） from the leaves that are being eaten.This is like a warning，or a call for help："I'm being attacked!" When another plant gets the chemicals，it starts to give out its own，different chemicals.Some of these chemicals drive insects away.
    More surprisingly，plants also use sound to communicate.People can't hear these noises，but plants are making them.Some plants make noises with their roots.Corn and chili plants do this.Some trees make clicking noises when there is not enough water.
    Most surprisingly of all，plants have an amazing system of communication that can link nearly every plant in a forest.Scientists call this system the "wood wide web".The wood wide web is linked underground by fungi （霉菌）.It links the roots of different plants to each other.It is in some ways similar to the Internet we use.Using the wood wide web，plants can share information and even food with each other.However，it may lead to bad effects.Plants may use it to steal food from each other，or spread chemicals to attack other plants.
    Scientists are learning more every day about the secret ways in which plants talk to each other.Maybe one day we will know enough about plant communication to be able to "talk" with them ourselves.

（1）從文中找出與"People find that plants communicate with one another to warn of danger."意思相近的句子。

It has been known that some plants' communication is like a warning.

It has been known that some plants' communication is like a warning.

（2）According to the writer，what is more surprisingly？

Plants also use sound to communicate.

Plants also use sound to communicate.

（3）What does the underlined word "them" in Paragraph 3 refer to（指的是）？

noises.

noises.

（4）根據(jù)短文內容填空，每空不超過5個詞。
The "wood wide web" is similar to①

the Internet

the Internet

we use.Using it，plants can②

share information and even food

share information and even food

with each other.On the other hand，plants may use it to ③

steal food

steal food

from each other.
（5）What's the passage mainly about？

The secret ways （in which） plants talk to each other.

The secret ways （in which） plants talk to each other.