教案 increasing fertility.doc

INCREASING FERTILITY (135)1. Teaching goals:(1) To grasp the function of hormone.(2) To know the method of increasing fertility.(3) To know the process of in vitro fertilisation.2. New words and expressions: fertility f:tiliti 生育力 生产力blockage blkid 堵塞 封锁fallopian flpin 输卵管ovary uvri卵巢 子房oestrogen estrdn 雌激素ripen raipn使成熟dose dus剂量quad kwd四胞胎monitor mnit 监视器 班长slide slaid幻灯片 滑动vitro vi:tru在试管内microscope stage 显微镜载物台Petri dish 培养皿cabinet kbinit 储藏柜 内阁fertilise f:tilaiz 使受精 施肥于zygote zaigut受精卵 合子embryo embriu 胚胎uterus ju:trs子宫implant impl:nt被移植 植入物3. Warming up: (1) What is hormone?(2) What is the function of hormone?(3) Do you know the cause of infertility?(4) What should people do if they are not able to have a baby?4. Listening:Help can be given to people who want to have children but are not able to do so easily. Farmers may also wish to increase the fertility of their animals.If a woman is not producing eggs, then a course of hormone treatment may help her. The hormones stimulate the womans ovaries to produce oestrogen, which causes eggs to ripen and be released.Another cause of infertility is a blockage in the Fallopian tubes. Although eggs are being released, sperms cannot reach them. Sometimes, the blockage can be cleared by surgery. The woman can then become pregnant in the normal way. Yes or no:(1) The hormone treatment can help women to produce eggs.(2) Oestrogen can cause eggs to ripen and be released.(3) The blockage can be cleared by surgery all the times. 5. Pre-reading:(1) How does increase the egg production?(2) If the tube cannot be successfully unblocked, what should the doctor do? 6. Reading: Ask students to read the passage and answer the question.7. Grammar and expressions: The hormones stimulate the womans ovaries to produce oestrogen, which causes eggs to ripen and be released.Vitro in vitro fertilisation Test tube baby Be added toImplant into8. Post-reading:Know the other functions of hormone. 9. Integrating skills: (1) The hormones stimulate the womans ovaries to produce _, which causes eggs to ripen and be released.(2) Another cause of infertility is a blockage in the _ _.(3) If the tube cannot be successfully unblocked, then _ can be tried. A baby begun in this