壞天氣增加了我們的困難。（weather, add to , difficulty）

好天氣使我們的下周出游成為可能。

The fine weather___________________________ for us to go for an outing next week.

由于天氣原因，他所有的努力都白費(fèi)了。

Because of the bad weather, all his efforts were _________________.

近期，霧霾天氣頻頻發(fā)生，PM2.5（可入肺顆粒物）與PM10（可吸入顆料物）這兩個(gè)此前不被人熟知的詞最近一直被許多人提及，環(huán)境保護(hù)越來(lái)越受到人們的關(guān)注。作為一名青少年，我們?nèi)绾伪M可能自己的微薄之力來(lái)保護(hù)環(huán)境，請(qǐng)以學(xué)生會(huì)的名義發(fā)出一個(gè)倡議。
要點(diǎn)；
1、環(huán)保受到人們更多的關(guān)注；
2、環(huán)境的現(xiàn)狀；
3、應(yīng)采取的措施。
提示：霧霾天氣：Dust-haze weather
注意：詞數(shù)120詞左右（格式已給出，不計(jì)入總詞數(shù)）。
My fellow students,
                                                                           
                                                                           
                                                                           
                                                                           
                                                                           
                                                                           
                                                                           
                                                                           
                                                                           
                                                                           
                                                                           
                                                                           
The Students’Union