阅读表达。 阅读下面的短文，并根据文章后的题目要求回答1-5小题。 [1]There are many different types of volunteer (志愿者) options (选择) for teens, and you will no doubt find more than this article can possibly list. But here are a few ideas to get you started on the path to being a successful volunteer. [2] Red Cross programs and many blood banks (血库) need teen volunteers. In fact the Red Cross has an entire Junior Red Cross that is devoted to offering volunteers jobs to teens. You will have the chance to  help others directly and do various jobs. [3] Parks and recreation (休闲,消遣) centers often run camps that are mostly worked by teens. If you enjoy working with children and you' re considering a career in teaching, look up day camps that offer these volunteer options to teens. Teens may volunteer for a year or two and then qualify for paid position as instructors. [4] Libraries are always in need of extra hands, especially during summer when more children are at the library. Volunteers can shelve books, read stories to children, help supervise (管理) sections of a library, or learn how to check out books for people. If you have ______, you can provide extra help by working with people to surf the Internet on library computers. [5] Animal shelters give teens a chance to have direct contact with animals. You may have to do some clean-up work for animals, but you also have a chance to decide whether a career working with them is right for you. [6]Lastly, teens who want to volunteer but don't have much time to spend on volunteer activities can look for one-time activities that can also help. For example, you can volunteer to work at your school or church's festival or yard sale, which may take up a few hours of one day but won't require a commitment beyond that. 1. What is the main idea of the passage? (no more than 10 words)) ____________________________________ _______________________ 2. Fill in the blank in Paragraph 4 with proper words.(no more than 2 words) _______________________________________________________________ 3. Complete the following statement with words from paragraph 2 (no more than2 words) Volunteers in Red Cross programs can help others directly and do___________ 4.  What can teens who want to volunteer but don't have much time to? (no more than 5 words) ________________________________________________________________ 5. What does the word 'them' (Line 2, Paragraph 5) probably refer to? (no more than 2 words) ________________________________________________________________