九年级英语 Rainy days make me sadSection B 2课件 人教新目标版.ppt

1. pros and cons　 n. 赞成和反对的理由 例如： To consider all the pros and cons of a matter before reaching a decision. 作出决定前先好好考虑所有赞成和反对的理由。 2. For instance, they can help you to compare two different products so that you can buy the one you really need. 例如，它们能帮你比较两个不同的产 品，以便你能买到你的确需要的东西。 for instance常用来引述证明论点或表 明观点的范例，可与for example互用。例如： He is very strong. For instance, he held up a huge stone easily yesterday. 他很强壮，比如他昨天轻而易举地举 起了一块大石头。 2) so that 在此引导一个目的状语从句， 意为“以便；为了”。从句中的谓语动词 常出现can, may, will等词。例如： You should return the digital camera to Mary so that she will not be angry. 你应该还给玛丽那个数码相机，以便 她不会生气。 ★当从句主语与主句主语一致时，可用so as to改为简单句。 【体验】We have to finish the task on time so that we can start another. We have to finish the task on time ________ start another. ★so that还可引导结果状语从句。如： My pen fell under my desk, so that I couldn’t see it. 我的钢笔掉在课桌下 了，以致我看不见它了。 【体验】She bought a digital camera online, ____ she saved a lot of time. A. so that B. as soon as C. no matter D. such that 3. It’s true that some ads can be very useful. 一些广告的确很有用。 (1) It’s + adj. +that 其中it 是形式主语,代替that引导的主语从句。 如： It is strange that be had made a mistake. 真怪, 他竟做错了。 (2) useful adj. 有用的 useless adj. 无用的, 无价值的 如: a useful idea 有用的主意 　 a few useless suggestions 一些无价值的建议 4. For instance, they can help you to compare two different products so that you can buy the one you really need.　 如: 他们能够帮你比较两种不同的产品, 以至于你能买到你真正需要的那个。 (1) for instance, for example 例如 (2) compare　比较，对照 compare...with...　 把……与……相比 如: If we compare French schools with British schools, we will find many differences. 如果我们把法国的学校与英国的学校 相比, 会发现许多不同之处。 compare...to...　把……比作…… 如: The poet compares the woman he loves to a rose. 这位诗人把他所钟情的女人比作玫瑰花。 (3) the one you really need 是定语从句the one 是定语从句中的先行词, that作为引导词在从句中做宾语省略掉了。 5. However, some advertising can be confusing