人教版《小学英语》家庭作业同步配套教学课件（五年级上册）Unit 5 There is a big bed_Part B Read and write & Let’s check & Let’s wrap it up

人教版《小学英语》家庭作业同步配套教学课件（五年级上册）Unit 5 There is a big bed_Part B Let’s try & Let’s talk

人教版《小学英语》家庭作业同步配套教学课件（五年级上册）Unit 5 There is a big bed_Part A Let’s try & Let’s talk

人教版《小学英语》家庭作业同步配套教学课件（五年级上册）Unit 5 There is a big bed_Part A Let’s learn & Let’s play

人教版《小学英语》课堂练习同步配套教学课件（三年级下册）Unit 5 Do you like pears？_Part B Let’s talk & Let’s play

人教版《小学英语》课堂练习同步配套教学课件（三年级下册）Unit 5 Do you like pears？_Part B Let’s learn & Let’s chant

人教版《小学英语》课堂练习同步配套教学课件（三年级下册）Unit 5 Do you like pears？_Part A Let’s talk & Let’s play

人教版《小学英语》课堂练习同步配套教学课件（三年级下册）Unit 5 Do you like pears？_Part A Let’s learn & Let’s chant

1 前言 2 微生物法脱除H2S的原理 3 生物法脱除气体H2S的工艺 4 生物法脱硫主要影响因素 5 结论

Time Events 1. In the 1830s a. first radio program broadcasting 2. On Aug. 5th, 1858 b. two coasts of the U.S. shown on TV at the same time