Unit4 Topic3话题考点精讲精练课件2023-2024学年仁爱科普版八年级英语上册

　八上　U4 T3 考点精讲 考点1    I'm not sure if that is a good idea. 我不确定这是不是个好主意。 be sure的用法: •肯定结构:be sure+that从句 否定结构:be not sure+if/whether从句 一般疑问句:—Are you sure (that)...?—Yes, I am./No, I'm not. •be sure of/about sth. 确信某事 Are you sure of the news? They are not sure about that. •be sure to do sth.一定做某事 The exhibition is sure to be popular. 练 用that/if/whether填空。 ⑴I am sure 　      he will come to my birthday party.我确信他会来 参加我的生日晚会。 ⑵I'm not sure 　     it is good to shop online. 我不确定网上 购物是否好。 ⑶I'm not sure 　      you like the movie or not. 我不能确定你 喜不喜欢这部电影。 that  if/whether whether  考点2    Let's find out the information online. 让我们在网上查找信息。 •information 为不可数名词,意为“信息;情况”。 辨析    find,look for,find out find 找到某个东西,强调结果; look for 寻找某个东西,强调动作; find out 查出某个东西或某件事情,“查明”。 练 ⑴My watch was lost yesterday. I 　      it everywhere but I didn’t     　    it. A.looked for; find　　B.found; look for　　C.looked for; find out ⑵Can you 　     when the train will leave? A.look for　　　　　　B.find out　　　　　　C.find A B 考点3    search for information 搜索/查找信息 search sb./sp. 搜某人(的身)/搜查某地 search for sb./sth.寻找/搜索某人/某物 练 ⑴The police 　    the thief. 那些警察正在找那个贼。 ⑵The policeman 　    the thief. 那个警察正在搜那个贼的 身。 is searching for is searching   考点4    We can make friends and share our ideas and feelings with each other by sending emails or chatting online. 我们可以通过发送电子邮件或在线聊天来交朋友,分享彼此的想法和感受。 •share sth. with sb. 与某人分享某物 •by+doing 通过做…… 练 I learn new words by 　     (read) English magazines. reading  考点5    Some people use the Internet to hurt others and try to get money by cheating. 一些人用互联网伤害他人并试图通过欺骗来获取钱财。 •use 作名词,意为“使用”。 This classroom is for the 　     of the music class. 这间教室供上音 乐课使用。 make...into use 使……投入使用 use  •use 作动词,意为“用”。 use sth. to do sth. 使用某物做某事 use sth. for doing sth. 使用某物做某事 练 ⑴What do you 　    it for? 你用它来做什么? ⑵We use an MP4 　      (listen) to music.=We use an MP4 for 　     (listen) to music. use to li