阅读短文，然后按要求完成各题。(Read the passage and do as required．)

　　(A)如果你打算去旅游，you will prepare your luggage．Here are some tips for you．

　　For flight, take a small and as light as a case as(B)________, unless you are traveling with someone who can carry it for you．A case with wheels is advisable(可取的)!If you travel alone, get a porter to help you if one is advisable．This may be expensive in some airports, but it means that you have a safe and happy trip, it may be worth doing! Try not to let someone run into you from behind and cause damage! This is often difficult in big airports．It is(C)________ to stand back and let impatient people get their luggage first than to risk damage!

　　Realize that you really do not need much, even when you are on a long flight．A sweater, a book, and a change of shirt or blouse in case are enough! Put your travel documents in it rather than carry an additional separate bag．(D)随身带些药物，or at least enough to last for a few days．

　　Clothing for traveling should be light and loose, especially around the waist．Be careful of tight belts and jewelry．Wear comfortable shoes．Don't travel in short skirts or shorts．

　　(E)If you are well-prepared before traveling, you may feel comfortable during your travel．

1．将画线部分(A)译成英语：________

2．在(B)和(C)空白处分别填入适当的单词：________；________

3．将画线部分(D)译成英语：________

4．将画线部分(E)改写为：________ well before your traveling, ________ you'll feel uncomfortable．

5．写出最能解释本文的中心句：________