四级考前最新命制试卷三Part I Writing (30 minutes)Directions: For this part, you are allowed 30 minutes to write a short essay entitled On the Tide of Immigrationfollowing the outline given below. You should write at least 120 words but no more than 180 words.1. 近年来越来越多的人移民国外2. 出现这一现象的原因3. 我对这一现象的看法和建议On the Tide of Immigration _