2022英语周报七年出级新目标30期答案

第一节短文改错Today I tried cooking a simply dish myself. I like eating fryingsImplefriedtomatoes with eggs, and I thought it must to be easy to cook. My mom told mehow to preparing it. First I cut the tomatoes into pieces but put them asideprepareNext I broke the eggs into a bowl and beat them quickly with chopstick. Afterthat I poured oil into a pan and turned off the stove. I waited patientlyunless the oil was hot. Then I put the tomatoes and the beaten eggs into Muntil/tillpan together. "Not that way, "my mom tried to stop us but failed. She wasImeright. It didn' t turn out as i had wished第一处: simply改为 simple。形容词和副词混用。此处修饰名词dish,故用形容词 simple o易错点拨]英语中的形容词通常用在名词之前、系动词之后和宾语之后,分别作定语、表语和宾语补足语,而用副词作状语,修饰形容词、副词或整个句子。第二处: frying改为 fried非谓语动词误用。过去分词作定语,表示动作的完成或被动,此处表示被炒过的西红柿鸡蛋,故用过去分词作定语。现在分词作定语表示进行或主动第三处:删除to。不定式符号多用。情态动词后接动词原形第四处: preparing改为 prepare。非谓语动词误用。不定式符号后跟动词原形第五处:but改为and。连词误用。此处表示动作的先后,是顺承关系,不是转折关系。故将bu改为and第六处: chopstick改为 chopsticks。名词单复数误用。 chopstick意为"筷子常以复数形式出现。第七处:of改为on。固定搭配误用。 turn off表示"关掉",此处意思为"打开厨灶",故用 turn on第八处: unless改为 until或ill连词误用。此处表示"我耐心地等到油热"。此处引导时间状语从句,表示"直到……为止第九处:pan前加the。冠词漏用。此处特指上文提到的平底锅。第十处:us改为me。人称代词误用。根据上文提到的"r"" my mon"可知此处表示"我妈妈尝试阻止我,但失败了"。

19.(1)证明:取PD的中点G,连接FG,AGP因为F为PC的中点,所以FG∥CD,且FG=CD因为AE∥CD,且AE=CD所以四边形AEFG为平行四边形所以EF∥AG.又EF￠平面PAD,AGC平面PAD,所以EF∥平面PAD(6分)(2)解:因为PD⊥底面ABCD,F为PC的中点,所以点F到平面BCE的距离为d=PD=1又S△BCEBE·BC=×1×2=1所以VB=VE“3”4、)×1X1=即三棱锥BEFC的体积为3(12分)

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