外研版高中英语必修四module 6《unexplained mysteries of the nature world》(第1课时)ppt课件.ppt

1．attack v. 1)进攻；攻击 At dawn the army attacked the town. 军队在拂晓时向这座城镇发动了攻击。 2)抨击；批评 There is a newspaper article attacking the England football coach. 报纸上有一篇抨击英格兰足球队教练的文章。 3)侵袭；伤害 The disease attacked his bones. 疾病已侵袭到了他的骨骼。 知识拓展 attacker n. 攻击者；进攻者 be attacked with(a disease) 患(病)；得(病) make an attack on/upon 攻击；向……进攻 高考直击 (2009·山东)So sudden________that the enemy had no time to escape. A．did the attack　　　　　 B．the attack did C．was the attack D．the attack was 解析：本题考查倒装，so..that..，such..that..的句子结构中，若so, such 和与其所修饰的词置于句首，主句部分倒装，又因为sudden是形容词，作表语，需要将系动词提前，所以选C。 答案：C 即学即用 If you were________in the street, would you be able to defend yourself? A．destroyed　　　　 B．attacked C．advised D．killed 答案：B 2．frightening adj. 吓人的；令人恐惧的 Last night I heard a frightening sound. 昨晚我听到了可怕的声音。 知识拓展 1)frightened adj. (人)感到害怕的；恐惧的 ①The little girl was frightened by the big dog. 那个小女子被这条大狗吓坏了。 ②I am frightened of snakes. 我害怕蛇。 2)frighten vt. 使恐惧；使害怕 The dog frightened the cat away. 那只狗把那只猫吓跑了。 3) 即学即用 He________the old lady________signing the paper. A．frighten; into B．frightened; to C．frightened; into D．frightened; of 答案：C 3．exist vi. 存在；有；生存；生活 Does life exist on Mars? 火星上有生命吗？ exist in 存在于 exist on... 靠……活下去；靠……生存 ①The idea exists only in the minds of poets. 这种想法是只有诗人才会有的。 ②Salt exists mostly in sea water. 盐分主要存在于海水中。 知识拓展 existence n. 存在；生活；生活 come into existence 开始存在；形成；成立 in existence 存在；现存 a struggle for existence 生存竞争 即学即用 The Roman Empire________for several centuries. A．exists B．existed C．was existed D．was existing 答案：B 4．sharp 1)adj. 锋利的；尖的；突然的；敏锐的；强烈的；急剧的；清晰的 a sharp knife 锋利的刀 a sharp voice 尖声 a sharp turn 急转弯 sharp hearing 敏锐的听觉 a sharp wind 刺骨的寒风 a sharp pain 剧痛 a sharp outline 清晰的轮廓 2)adv. (某时刻)整；急剧；猛然 Turn sharp left here. 在这儿向左急转弯。 即学即用 (2009·成都模拟)The meeting starts at 3 oclock________； dont be late! A．sharp B．shape C．sharpen D．shaped 答案：A 　close to 1)(在空间或时间上)接近 Our house is close to the park. 我们的房子离公园很近。 2)几乎(处于某种状态)；可能(快要做某事) ①He was close to tears. 他几