人教版高中英语选修六unit4globalwarmingsectionⅳ课件

人教版高中英语选修六unit4globalwarmingsectionⅳ课件内容摘要：

rom Africa that year________he met the girl he would like to marry. A． when。 then B． not。 until C． not until。 that D． only。 when 解析： 选。 考查强调句型。 句意：他直到那年从非洲回来之后才遇到了他想与之结婚的女孩。 此句是“ not until ...”的强调句型。 C 四、使用强调句型的几个注意事项 1．若被强调成分是主语， who/ that之后的谓语动词应该 在人称和数上与被强调的主语保持一致。 It is he who/ that often helps me with my English. 是他经常帮我学英语。 It is trees that we plant on the hillside every year. 我们每年都在山坡上种的是树。 2．即使被强调成分是句中的时间状语、地点状语、原因状 语等，也不能用 when, where, because等，要用 that。 It was in front of the bank that the old lady was robbed. 老太太是在银行前面被抢劫的。 It was because of the heavy rain that he came late. 由于下大雨他来晚了。 3．若被强调成分是作主语的代词，用主格；若是作宾 语的代词，则用宾格。 It was he that helped me yesterday. 昨天帮我的人是他。 It was me that he helped yesterday. 他昨天帮的人是我。 4．强调句中只用两种时态，即一般现在时和一般过去时。 原句谓语动词是一般过去时、过去完成时和过去进行时， 用 It was ... that/who ...，其余的时态用 It is... that/who ... It is you who/ that are to blame. 是你该受到指责。 It was chairman of the mittee that we elected her. 我们选她当委员会主席。 五、强调句型与其他相似句型的辨析 强调句型最容易与定语从句、主语从句和状语从句等 混淆，区分它们的关键在于：如果把句。