The great scientist Yuan Longing passed away on May 22nd，2021. ①All Chinese people were very _______ when hearing the quite bad news.

②hunger，Mr.Yuan，millions of ，helped，out of，people.So people want to do something to remember the great man.Many people think that saving food in the best way to pay back his super achievement.Actually，the whole society has been taking action to fight against food wasting for many years.The following is an example.

③A university student ______ Liu Jichen，has developed an app—Clear Your Plate.After a meal，people can use the app on the phone and take pictures of their empty plates.After the pictures are deal by the app，people will get some points.Then they can change the points into some gifts from the website.Now this app is very popular with young Chinese and has more than 1 million users.④Me Lia said，" It's important to encourage young people to develop the habit of saving food."

    Technology is a helpful way to save food but not the only one.⑤Anyway，we must keep the god habit of thrift forever，jut like what scientist.Yuan said and did.⑥If everyone tries to save food， 　 　.

（1）请根据文意在①句和③句空白处各填入一个恰当的词，使句意完整。

①　 　；

③　 　.

（2）请将②处下划线词汇连成语意完整的句子。 　 　

（3）请将④句中下划线部分翻译成汉语。 　 　

（4）请从文中找出能替代⑤句中下划线单词的一个动名词。 　 　

（5）请根据文意补全⑥句，使句意完整、语法正确符合逻辑。