Unit 4 Helping people around the worldr课件2（牛津高中选修6）.ppt

①If only we had arrived in time，we would not have missed the train. 要是我们及时到达就好了，我们就不会错过火车了。 ②Only if a teacher has given permission is a student allowed to leave this classroom. 只要老师允许学生就可以离开这个教室了。 15．完成句子 (1)我同事要是有这个机会就好了！ If only my colleague________ ________ ________！ 答案：had the chance (2)要是员工们有更多的钱，就能买辆汽车了。 If only the staff________ ________ ________，they could buy a car. 答案：had more money 即境活用 (3)要是我去年夏天在那个慈善机构做份临时工就好了。 If only I________ ________a temporary occupation in that charity last summer. 答案：had done 2【教材原句】　There is mud and water everywhere，making it difficult to travel from place to place.(P62) 到处都是水和泥，这使得我们的旅程变得非常艰难。 【句法分析】　本句使用的是there be句型。 (1)there be句型在英语中表示“什么地方或什么时间存在什么事物”。在这种结构中，there是引导词，be后面的名词是主语，句子的结尾是地点(时间)状语。 ①There is a tall tree in front of the classroom. ②There will be a meeting at the conference room at 8 o’clock tomorrow morning. (2)如果有两个或两个以上的主语，谓语动词be与主语的一致问题，要采用就近一致原则。 ③There is a pen，two books，and many pencils on the desk. (3)there be结构有不同时态的形式，而且可以和各种助动词、情态动词连用。 ④There was a meeting in our school yesterday. ⑤There have been many great changes in our country since then. ⑥There can’t be any mistakes in his passage. (4)there be结构中的谓语动词be，有时可用seem to be，happen to be，is likely to be或半系动词remain，stand，lie，go，exist，follow，live，come，occur等替换。 ⑦There is likely to be something wrong with his computer. ⑧Once upon a time there lived a monk in the temple. (5)there be句型的非谓语形式。 ⑨There being no time left，we have to hurry.(Because there is no time left...)(独立主格结构作状语) ⑩There having been no water for 2 days，the travelers were all very thirsty.(Because there had been no water for 2 days...)(独立主格结构作状语) ?What is the chance of there being an election this year？(there be的动名词形式作of的宾语) ?I expect there to be many chances for him to get the job.(there be的不定式结构作expect的复合宾语) ?It is natural for there to be a generation gap between the parents and their child.(there be的不定式结构作真正的主语) 16．用所给动词的适当形式填空 (1)There________(be)a chair and two tables in the room. 答案：is (2