Unit 4 Topic 2 话题考点讲练课件 2023-2024学年仁爱科普版九年级英语上册

　九上　U4 T2 考点精讲 考点1    I don't think aliens can be found in space. 我认为太空里找不到外星人。 当think, believe, suppose, imagine, expect等动词后的宾语从句中含有 否定词not时, 该否定词一般移至主句, 即否定主句的谓语动词。如果 主句的主语是第二、三人称,否定词一般不转移。 I don't think he will come tomorrow. 我认为明天他不会来。 练 I 　     that he 　      translate this book. 我相信他翻译不了这本书。 don't believe can 考点2    Its diameter is 53% as wide as that of the earth. 它的直径是地球直径的53%。 The gravity on the surface of Mars is about two-fifths as strong as it is on earth. 火星表面的引力大约是地球表面引力的五分之二。 倍数/分数/百分数+as+形容词/副词原级+as... “是……的几倍/ 几分之几/百分之……” 53% as wide as 是……宽度的53% two-fifths as strong as 是……强度的五分之二 half as big as... 是……的一半大 练 ⑴The dining room is 　    the kitchen. 餐厅是厨房的两倍大。 ⑵The room is 　      that one. 这个房间是那个房间的三分之一大。 ⑶After the new technique was introduced, the factory produced 　      tractors in 2020 as the year before. A.as twice many　　　　B.as many twice　　　　C.twice as many one-third as big as C twice as big as 考点3    Mars goes around the sun at a distance of about 228 million kilometers. 火星在距太阳大约2.28亿千米的地方绕着太阳转动。 at a distance of 在距离……的地方; at a distance 在远处; in the distance 在远处 The moon goes around the earth at a distance of about 380000 km. 月球在距地球大约38万千米的地方绕地球转。 The police followed him at a distance/in the distance. 警察远远地跟着他。 练 　     six miles you can't see much. A.In the distance　　　B.At a distance of　　　C.In the distance of B 考点4    I often miss the family, but the excitement of being on Mars is worth it! 我经常想念家人, 但身处火星的兴奋是值得的! •excitement(n.)—excite(v.)—excited /exciting(adj.) •worth的用法: be worth it 意为 “有好处, 值得”。 be worth+钱,意为 “值……钱”。 be worth doing 意为 “值得做某事”。 All the effort was worth it. 所有的努力都是值得的。 The Great Wall is well worth a visit. 长城很值得参观。 练 ⑴The book is really worth 　     (read). ⑵Her new dress is 　      200 yuan. A.cost　　　　　　B.worth　　　　　　C.bought reading B 考点5    Scientists are still searching for more information about Mars. 科学家们正在探索更多关于火星的信息。 search sth./sb. 搜查某物/某人,后面跟的