“物之不齐，物之情也”。人类社会发展的“长河”、“河流”、“河段”带给执政党一个铁律：罔顾社会发展的阶段性特征，或无原则倒退，或无根基超越，都会给社会发展带来危害。这意味着，提高***执政的科学性必须（    ）

①倡导求真务实，自觉遵循社会发展客观规律

②立足基本国情，坚定道路、理论与制度自信

③践行以人为本，以群众践线为工作的出发点

④坚持与时俱进，勇于摆脱社会历史条件束缚

阅读理解

    Many people like going shopping at weekends after five days'hard work．Supermarkets are good places for shopping．

    Before you go into the supermarket，get a trolley．Trolleys are usually outside the entrance(入口)．It's good to push your trolley around and take what you want．If you only plan to buy a few things，get a basket．Baskets are usually in the supermarket．You can buy different kinds of things in the supermarket．You can buy fruit and vegetables，meat and fish，bread and cakes，ice cream and magazines．

    There is a big supermarket near my home．My parents like shopping there but my sister Liz and I don't．There'll  be a sale in it on Saturday．My parents are going to buy some carrots and tomatoes．

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