To tell the truth, the teachers of textbooks usually use books, just giving you the original examples (such as lisening) in reading. If you want to read the relevant texts, you may wish to look at the guidance newspaper issued by the teacher. Look at your text version of junior high school teaching AIDS, just as your science is Zhejiang education version. You'd better buy a publishing house as a reference book for Zhejiang Education Publishing House. Chinglish recommends reading a book called Double Speed, and the examples are selected in the math book. No need to buy it. Scientifically recommend reading Meng Jianping series books with green covers (don't buy students' books, buy teachers' books, which contain both examples and answers from students' books). Look at the medical information sent by the teacher to find out which problems are in which position.