四年级英语上册课件 Chapter 3 Part AB 朗文版

When our grandparents were young Part AB Chapter 3 When we were young… 2059 Let’s talk. Time machine. Let’s learn. chewing gum [ˈtʃu:ɪŋ] [gʌm] drew Let’s learn. fast food Let’s talk. Look and say. cola cola cola Let’s learn. CDs Let’s learn. comics [ˈkɒmɪk] clocks [klɒk] Let’s learn. Let’s learn. air-cons air-conditioners Let’s learn. mobile phones [ˈməʊbaɪl] [fəʊn] Look and complete. 1.o 2. ch 4. oo 6. u 5. air 8. one 3. ew 9. c 7. ph 10.ck 11. on 12. bi 13. a Look and complete. c_l_ _ _ewing g_m f_st f_ _d c_m_c clo_ _ air-c_ _ m_b_le _ _one cola chewing gum fast food comic clock air-con mobile phone _o_a _o_i_ _ _o_ _ air-_ o _ _o_ile _ _o_ne _a_ _ _oo_ _ _ewing _u_ cola comic clock air-con mobile phone fast food chewing gum Look and complete. Let’s play. cola chewing gum fast food mobile phone air-con comic CD clock un. cn. Let’s learn. a computer an electric fan Let’s learn. cup noodles（可数） Let’s learn. 可数名词Countable noun CDs comics clocks air-cons mobile phones computers electric fans cup noodles Are there any…? Yes, there are. No, there aren’t. Let’s talk. 不可数名词 Uncountable noun cola chewing gum fast food Is there any…? Yes, there is. No, there isn’t. Let’s guess. Is there any…? Are there any…? Let’s learn. When our grandparents were young Let’s learn. When our grandparents were young be 动词 现在时 过去时 am is are was was were Let’s learn. Is there any chewing gum? Yes, there is. No, there isn’t. Was there any chewing gum? Yes, there was. No, there wasn’t. today yesterday Let’s learn. Are there any CDs? Yes ,there are. No, there aren’t. Were there any CDs? Yes, there were. No, there weren’t. today last week Let’s learn. Past tense Are there any CDs?（12years ago） Yes, there are. Were there any CDs 12 years ago? Yes, there were. Let’s learn. Past tense Are there any mobile phones ?(200 years ago) No, there aren’t. Were there any mobile phones 200 years ago? No, there weren’t. weren’t= were not Let’s learn. Past tense ____