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11. 保 護(hù) 我 們 的 世 界 ___________________ 12. 在 過 去 ___________________________ 我的疑問 課內(nèi)探究 質(zhì)疑探究 : 1. Activity 1 ~ Activity 3 操練大數(shù)字的英語讀法。s family have to live on for a whole year. The world is now trying to help those people like Li Hua live better. From Tuesday to today, about 2, 000 government leaders and scientists meet in Shanghai to talk about stopping poverty(貧困 ) around the world. According to the United Nations, the poorest people in the world live on less than yuan a day. Most of those people live in African countries like Sierra Leone and Somalia. These countries often have wars and lots of diseases. Now, more than one billion people in the world live in poverty. The UN said that by 2021, that number would be cut in half. To help China’s poor people , the World Bank has given more than 37 million yuan to help Chlna build railways and s