《2025年优化探究同步导学案高中英语选择性必修第二册人教版》

2. suspect vt. & vi. 怀疑；疑有；不信任 n. 可疑对象；犯罪嫌疑人
[教材原文] Snow suspected that the water pump was to blame.
斯诺怀疑是水泵的问题。
(1) Two suspects (suspect) involved in the theft are now being questioned at present.
(2) The teacher suspected the boy of cheating in the exam, which made him quite frustrated.
→ The teacher suspected that the boy cheated in the exam, making him quite frustrated.
suspect sb. of (doing) sth. 怀疑某人(做过)某事
suspect that + 从句 怀疑……；觉得……

答案： 2.
(1)suspects
(2)suspected that the boy cheated in the exam

3. blame vt. 把……归咎于；责怪；指责 n. 指责；责备
(1) It was the foggy weather rather than the drivers that was to blame (blame) for the traffic jam.
(2) 经理没有将错误归咎于他的助手，这是出乎意料的。
① The manager didn't blame his assistant for the mistake, which was beyond expectations.
② The manager didn't blame the mistake on his assistant, which was beyond expectations.
(3) 汤姆因演出失败被责备，他感到一阵悲伤。(读后续写之情感描写)
Blamed for the failure of the performance, Tom felt seized by a burst of sadness.
be to blame (for sth.) (对某事)负有责任；应受责备
blame sb. for sth. 因某事责备某人
blame sth. on sb./sth. 把某事归咎于某人/某事

答案： 3.
(1)to blame
(2)①didn't blame his assistant for the mistake ②didn't blame the mistake on his assistant
(3)Blamed for the failure of the performance

4. decrease n. 减少；降低；减少量 vt. & vi. (使大小、数量等)减少；减小；降低
[教材原文] Through Snow's tireless efforts, water companies began to sell clean water, and the threat of cholera around the world saw a substantial decrease.
通过斯诺的不懈努力，供水公司开始销售清洁饮用水，世界各地的霍乱威胁也大幅度减少。
(1) Statistics show that average house prices decrease by 13% last year.
(2) 一些稀有动物的数量正在减少，因此急需政府采取措施来保护它们。(写作话题之环境与自然)
The number of some rare animals is on the decrease, so there is an urgent need for the government to take measures to protect them.
decrease to... 减少到……
decrease by... 减少了……
decrease from... to... 从……减少到……
on the decrease 在减少

答案： 4.
(1)by
(2)The number of some rare animals is on the decrease