阅读以下材料,回答问题。
案例:环节一要求:请学生充分畅谈对《杞人忧天》寓意的理解,并在原文中找到可靠的依据。环节二要求:拓展阅读,请学生思考长庐子是怎样看待这件事的。环节三要求:这篇文章选自《列子》,请学生再进行拓展阅读,看看列子是怎样看待这件事的。环节四要求:请学生课下为《杞人忧天》设定新的寓意,并根据自己设定的寓意改写这则寓言。附:环节一课文原文:杞人忧夭《列子》杞国有人忧天地崩坠,身亡所寄,废寝食者。又有忧彼之所忧者,因往晓之,曰:“天,积气耳,亡处亡气。若屈伸呼吸,终日在天中行止,奈何忧崩坠乎?”其人曰“天果积气,日月星宿,不当坠邪?”晓之者曰:“日月星宿,亦积气中之有光耀者,只使坠,亦不能有所中伤。”其人曰:“奈地坏何?”晓之者曰:“地,积块耳,充塞四虚,亡处亡块。若躇步跳蹈,终日在地上行止,奈何忧其坏?” 其人舍然大喜,晚之者亦舍然大喜。环节二增补内容:长庐子闻而笑之曰:“虹霓也,云雾也,风雨也,四时也,此积气之成乎天者也。山岳也,河海也,金石也,火木也,此积形之成乎地者也。知积气也,知积块也,奚谓不坏?……天地不得不坏,则会归于坏。遇其坏时,奚为不忧哉?”环节三增补内容:子列子闻而笑曰:“言天地坏者亦谬,言天地不坏者亦谬。坏与不坏,吾所不能知也。虽然,彼一也,此一也,故生不知死,死不知生;来不知去,去不知来。坏与不坏,吾何容心哉?”问题:(1)请评析环节二和环节三在教学中的作用。(10分)(2)请比较环节一和环节四的教学目的,说说它们的相同点和不同点。(10分)
Which of the following best describes the relation between night and knight?
Which of the following tasks fails to develop student’s skill of recognizing discourse patterns?
If a teacher asks students to fill in the blanks in a passage with “that” “which” or “whom”,he/she is least likely focusing on grammar at ( ).
Which indefinite article "a" should he read emphatically in the following sentences?
What is minssing at the discourse level between the two sentences“Carol loves tomatoes.She was born in Africa.”?