【高二学案21】人教版高中英语选择性必修二 Unit 1 Science and Scientists 课时1 词汇专项学案

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【高二学案21】人教版高中英语选择性必修二 Unit 1 Science and Scientists 课时1 词汇专项学案

 作者：Risibo

一、学习目标

知识目标

掌握科学与科学家单元核心词汇、词性变形；熟记科研求证、疫病研究类固定搭配；辨析cure/treat、suspect/doubt等易混词；掌握blame/link/expose高考高频介词搭配。

能力目标

独立完成词形变换、短语默写、英汉互译；运用核心词汇完成单句填空与语境翻译，夯实基础词汇运用能力。

学科素养目标

学习科学家求真务实、不畏艰难的探索精神，树立严谨求实的科学求知品质。

二、教学重难点

重点

defeat, analyse, cure, suspect, blame, handle, link, expose, severe, subscribe 词形变化与固定搭配

难点

blame固定句型；link介词搭配；expose用法；suspect与doubt词义辨析

三、课前预习案

任务1：核心词汇+词形变形

1. defeat v. 击败；战胜 n. 失败

2. analyse v. 分析 → analysis n. 分析（复数analyses）

3. cure v. 治愈；治疗 n. 疗法

4. suspect v. 怀疑 n. 嫌疑人 → suspicion n. 怀疑

5. blame v. 责备；指责 n. 责任

6. handle v. 处理；操纵 n. 把手

7. link v. 联系；连接 n. 联系

8. expose v. 暴露；揭露 → exposure n. 暴露

9. severe adj. 严重的；严厉的 → severely adv.

10. subscribe v. 订阅；同意 → subscription n. 订阅

任务2：单元必背短语

1. defeat the disease 战胜疾病

2. analyse data 分析数据

3. cure sb. of illness 治愈某人疾病

4. suspect sb. of doing sth. 怀疑某人做某事

5. blame sb. for sth. 因某事责备某人

6. link...to... 把……与……联系起来

7. expose sb. to sth. 使某人接触/暴露于

8. subscribe to 同意；订阅

9. severe symptoms 严重症状

10. handle problems 处理难题

任务3：预习自测（英汉互译）

1. link the disease to dirty water ____________

2. blame the polluted river for the illness ____________

3. 分析实验收集的数据 ____________

4. 使人们暴露于病菌之下 ____________

5. 赞同科学研究的结论 ____________

四、课堂探究案

探究1：核心单词精讲+课本原句

1. blame v. 责备；归咎于

原句：No one can be blamed for the sudden spread of the disease.

必考搭配：blame sb. for sth. 因某事责怪某人；blame sth. on sb. 把某事归咎于某人；be to blame 应承担责任

2. link v. 联系，连接

搭配：link A to B 将A与B关联；be linked to 与……有关

3. expose v. 暴露，使接触

搭配：expose sb. to sth. 使某人接触；be exposed to 暴露于

拓展例句

4. The scientist analysed thousands of pieces of experimental data.

5. This medicine can cure patients of the deadly disease.

6. People suspected dirty water of causing the serious illness.

7. Don’t blame the workers for the experimental failure.

8. He subscribed to the view that environment affects health.

探究2：易混辨析

1. cure / treat

• cure 强调“治愈、根除疾病”，侧重最终治疗结果

• treat 仅表示“诊治”，侧重治疗过程，不一定痊愈

2. suspect / doubt

• suspect 内心认为事情大概率属实，带有肯定倾向

• doubt 质疑事情真实性，带有否定、不信任倾向

探究3：课堂对点练习

基础过关（单句填空）

1. People linked the outbreak ________ polluted drinking water.

2. We should not blame others ________ our own mistakes.

能力提升翻译

1. 科学家将这场疫病的爆发与受污染的水源联系起来。

2. 我们不能因为实验失败就责备科研人员。

五、课后巩固案

基础过关（单句填空，10题）

1. The team ________ (defeat) all difficulties and finished the experiment.

2. We need a detailed ________ (analyse) of the collected samples.

3. This new drug can ________ (cure) people of the rare disease.

4. He ________ (suspect) the water of spreading the virus at first.

5. No one should ________ (blame) for the sudden disaster.

6. The researcher knows how ________ (handle) such serious cases.

7. The illness ________ (link) to unclean living conditions.

8. Don’t expose children ________ harmful chemicals.

9. The patient suffered from ________ (severe) pain for days.

10. She subscribed ________ the scientist’s research conclusion.

能力提升（短语填空，10题）

选用方框短语适当形式填空：defeat the disease, analyse data, cure...of, suspect...of, blame...for, link...to, expose...to, subscribe to, severe symptoms, handle problems

1. Modern medical science has helped humans ________ many deadly illnesses.

2. Researchers ________ carefully before drawing a final conclusion.

3. The new drug can ________ patients ________ the strange fever.

4. Local people ________ the waste water ________ spreading disease.

5. We shouldn’t ________ nature ________ human carelessness.

6. Scientists ________ the disease ________ poor sanitation.

7. Do not ________ kids ________ dangerous bacteria.

8. Most experts ________ the theory about environmental influence.

9. The old man showed ________ after drinking polluted water.

10. Young scientists learn to ________ in the lab.

高考链接（语法填空，10空）

1. Experts linked the spread of disease ________ dirty river water.

2. Don’t blame others ________ your careless operation.

3. He was suspected ________ hiding important experimental records.

4. This medicine can cure people ________ lung infection.

5. Children should not be exposed ________ harmful radiation.

6. She subscribed ________ the idea of scientific exploration.

7. The ________ (analyse) of samples took three whole weeks.

8. The team ________ (defeat) countless difficulties last year.

9. The symptoms were ________ (severe) than expected.

10. He learned ________ (handle) complex research tasks.

六、参考答案

预习自测

1. 将疾病与污水关联起来

2. 把这场疾病归咎于被污染的河流

3. analyse the data collected from experiments

4. expose people to germs

5. subscribe to the conclusion of scientific research

课堂对点练习

基础过关

1. to

2. for

能力提升翻译

1. Scientists linked the outbreak of the disease to polluted drinking water.

2. We should not blame researchers for the failure of the experiment.

课后巩固

基础过关

1. defeated

2. analysis

3. cure

4. suspected

5. be blamed

6. to handle

7. is linked

8. to

9. severe

10. to

能力提升

1. defeat the disease

2. analysed data

3. cure; of

4. suspected; of

5. blame; for

6. link; to

7. expose; to

8. subscribed to

9. severe symptoms

10. handle problems

高考链接

1. to

2. for

3. of

4. of

5. to

6. to

7. analysis

8. defeated

9. more severe

10. to handle

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