肯請會英文的大大們，看我的英文翻譯是否正確，如有錯誤請幫我修正（我的字彙和文法極差）?

Before the GSAT (General Scholastic Ability Test), teachers in Taiwan would take their Grade 12 students to the temple for praying. Students make their wishes for getting good grades so that they could enter a good university to start their new life.

Nanwan, located in Taiwan's Kenting National Park, boasts a clean beach and blue sea water. Young people who love surfing would certainly challenge this well-known attraction. There are many coral reefs in the sea, very suitable for snorkeling. Nanwan is just like the scene in the movie "The Blue Lagoon",

Being the third largest city in Taiwan, Kaohsiung City has a population of 2.778 million residents. It is also well-developed in commerce and industry. Kaohsiung Harbor used to be the third largest port in the world. However, the economic boom in Kaohsiung has also worsened the air pollution problem, making it a foggy city in the 21st century.

在GSAT（普通學力測驗）之前，台灣老師給十二年級的學生在寺廟裡進行祈禱活動。學生希望成績好，進入好的大學開始新的生活。
Before attending the GSAT (General Scholastic Ability Test) , Taiwanese teachers will hold an event to pray in the temple for the 12th grad Students. Therefore, the students will get good grades and enter good university to start their new life.

南灣位於台灣的墾丁國家公園。它有一個乾淨的海灘和藍色的海水。喜歡衝浪的年輕人一定會挑戰這個著名的景點。南灣有許多珊瑚礁，也是適合浮潛的海域。南灣就像電影“藍色礁湖”一幕。
Nanwan with clean beach and blue sea is located in Taiwan's Kenting National Park. Young people who love surfing should challenge this well-known attraction. Also, There are many coral reefs for snokelling. Nanwan is just like the scene of the movie as “The Blue Lagoon.

高雄市有278.8萬居民，是台灣第三大城市。這個城市的工商業也很發達。高雄港曾經是世界第三大港口。然而，高雄的繁榮也造成空氣污染問題惡化，使之成為21世紀的霧都市。
Kaohsiung City with 2.778 million population is the Taiwan's third largest city. It is also well-developed in commerce and industry. In addition,Kaohsiung Harbor used to be the third largest port in the world. However, the development in Kaohsiung has also caused the air pollution to be more worse and made the place as a foggy city in the 21st century.
提供建議如下：
1、句子以精簡為要
2、語句轉換可多用連接詞

在GSAT（普通學力測驗）之前，台灣老師給十二年級的學生在寺廟裡進行祈禱活動。學生希望成績好，進入好的大學開始新的生活。
As far as education in Taiwan being concerned, it is necessary for grade 12th students to prepare for General Scholastic Ability Test prior to study in the universities. Therefore, teachers might have to advise them to worship in the temples; so as to improve their spiritual welfare.


南灣位於台灣的墾丁國家公園。它有一個乾淨的海灘和藍色的海水。喜歡衝浪的年輕人一定會挑戰這個著名的景點。南灣有許多珊瑚礁，也是適合浮潛的海域。南灣就像電影“藍色礁湖”一幕。
South Bay is located in Taiwan's Kenting National Park. It has a clean beach besides the blue sea. Young people who loved surfing will love this well-known attraction. There are many coral reefs in South Bay and it is a suitable place for snorkeling. with the scene of movie "The Blue Lagoon" .

高雄市有278.8萬居民，是台灣第三大城市。這個城市的工商業也很發達。高雄港曾經是世界第三大港口。然而，高雄的繁榮也造成空氣污染問題惡化，使之成為21世紀的霧都市。
Kaohsiung City has 2.778 million residents, it is Taiwan's third largest city and is also well-developed in commerce and industry . Kaohsiung Harbor, which used to be the third largest port in the world. However, the boom in Kaohsiung has also caused the air--pollution problem worsen and making it a foggy city in the 21st century. Yip

在GSAT（普通學力測驗）之前，台灣老師給十二年級的學生在寺廟裡進行祈禱活動。學生希望成績好，進入好的大學開始新的生活。
Before the GSAT (General Scholastic Ability Test) , (Taiwan) teachers (will lead) the 12th grade students (to the temple for prayer). Students hope (they) will (obtain) good grades and enter good (universities) to start their new (lives).
說明：
1. Taiwanese teachers 建議改為Taiwan teachers , 因也許在美國的某一學校裡有一位Taiwanese teacher,未必指在台灣的老師.
2. 到寺廟裡祈福不知可以不可以算是學校的活動？建議就寫成老師帶學生去。

南灣位於台灣的墾丁國家公園。它有一個乾淨的海灘和藍色的海水。喜歡衝浪的年輕人一定會挑戰這個著名的景點。南灣有許多珊瑚礁，也是適合浮潛的海域。南灣就像電影“藍色礁湖”一幕。
Nanwan is located (at) Taiwan's Kenting National Park. It (owns) a clean beach and blue sea water. Young people who love surfing are sure to challenge this well-known attraction. There are many coral reefs in Nanwan, so it is also (a sea which is suitable) for snorkelling. (And the view of) Nanwan is like (the scene of) the movie "The Blue Lagoon".

高雄市有278.8萬居民，是台灣第三大城市。這個城市的工商業也很發達。高雄港曾經是世界第三大港口。然而，高雄的繁榮也造成空氣污染問題惡化，使之成為21世紀的霧都市。
Kaohsiung City has 2.778 million residents, (which) is Taiwan's third largest city. It is (also 刪除) well-developed in commerce and industry (in this city 此3字刪除). Kaohsiung Harbor(, which刪除) used to be the third largest port in the world. However, the boom (of) Kaohsiung has (also刪除) caused the air pollution problem to worsen, making it (become) a foggy city in the 21st century.
說明：
1.make you beautiful, make you become a good person.