Unit 4 Wildlife protection学案

第三课时Language Points

Step I. 词汇探究

1. decrease v. 降低，减少，(使)变小，(使)变少 n.减少，降低

on the decrease 在减少中 decrease to 减少到 decrease by 减少了

decreasing adj. 减少中的，在递减的

【链接】反义词 increase

increase to...增加到... increase by...增加了...

2. loss n. 损失；遗失；丧失；败北 lose vt. 丢失，损失 lost丢失的

He suffered a loss of 10,000 dollars on the business.

那笔生意中，他损失了10 000美元。

Our team has already had 3 losses.我们队已经败了三场了。

at a loss adj. 困惑，不知所措，adv. 亏本地

例句：

She was at a loss for an answer. 她不知如何回答才好。

that's your/their loss 口语 那是你们的/他们的损失

Well, if he doesn't want to come it's his loss.

好吧，如果他不愿意来，那是他的损失。

respond vi. 回答；响应；做出反应

① The disease responds to the drug.该病对这种药显出良好的反应。

② He responded to my suggestion with a laugh.他对我的建议报以大笑。

辨析：respond指对他人的期望等在行动上做出的反应

answer 指用文字、语言或行动回答，是最普通用词

reply指对他人的问题、要求所作的相应的答复

即景活用：

-It is strange that Dave didn't respond ________ any of my emails.

-Something must have happened to him.

A．on B．with C．for D．to

解析：答案：D respond to...回复；对......作出反应。