Page 28 - 新思维科学学生用书6 样章
P. 28

1.3  The reproductive system



                  1.3  The reproductive system




                We are going to:


                •  describe body changes that happen during puberty

                •  name the parts of the reproductive system.



                Getting started


                Think about what you already know about

                reproduction and write down your answers
                to these questions.


                1  What is reproduction?
                2  Why do living things need to reproduce?

                3  Reproduction is part of the life cycle of

                    all living things.
                    Look at the picture of the human

                    life cycle.

                    a  Which stage of the life cycle are you in now?
                    b  Which stages are your family members in?





                fertilisation
                hormones
                menstruation

                ova
                puberty
                reproductive
                system

                sperm













                                                                                                           27
   23   24   25   26   27   28   29   30   31   32   33