一、导读：

Key words & expressions involved

二、导思：【课文定位】根据语境推测下列划线单词或者短语的中文意思并且反复诵读

1. It also contains information that helps determine our lifespan and affects our chances of contracting certain diseases.

2. Geneticists have been trying to identify which genes relate to which diseases, as they believe genome editing is an effective means of disease treatment and prevention.

3. Soon we may be able to use such treatments to restore a blind person’s vision or give someone who was born deaf an excellent sense of hearing.

4. Genome editing, serving as a new weapon in the fight against diseases, will lead to a fundamental change in our approach to health care.

5. As the technology continues to develop at a fast pace, however, questions arise about how to use it appropriately.

三、导学&导练

A. 借助字典查下列单词的词性转化

1．affect vt.影响；侵袭，使感染；深深打动→__________________n．喜爱；影响

2．identify vt.找到，发现；确认，认出；显示，说明身份→__________________ n．识别；鉴定；确认

   →__________________身份；特征

3．abnormal adj.反常的，畸形的→__________________adj.正常的，标准的

4．arise vi.发生，出现；(由……)引起，(因……) 产生→(过去式)_____________→(过去分词)_____________

5．prohibit vt.(尤指以法令)禁止；使不可能→(过去式)________________→(过去分词)________________ →n.________________禁止；禁令

6．resistance n．抵抗力；抵制，反对；抵抗，反抗→___________ v．抵抗；抗拒→___________ adj.抵抗的，反抗的

7．withdraw vi.& vt.脱离(社会)，不与人交往；(使)撤回；(使)退出；停止提供→(过去式)___________→(过去分词) ___________→n.________________

8．equip vt.配备；使有能力→(过去式)____________→(过去分词)____________→______________ n．设备

9．grateful adj.感激的，表示感谢的→_______________ n．感谢；感激

10．disabled adj.有残疾的，丧失能力的→_______________ n．缺陷，障碍

B. 掌握核心单词的用法

1. specialize vi. 专门研究或从事，专攻 (P29)

①specialize in 专门研究               ▲specialized  adj. 专用的，专业的，专门的

▲specialization n. 专门化，专攻 [c/u]   ▲specialist n. 专家；专科医生 [c]

1) He specialized in medicine at college. 大学时他专攻医学。

2) The specialist has specialized equipment in treating caner.在治疗癌症方面，那位专家有专门的设备。

2. being n. 生物 [c]；存在 [u]；身心 [u]      vt. 由于；因为 (~as)  (P30, L8)

①living being 生物     ②human being 人，人类   ③alien being 外星人

④come into being 形成；产生                    ⑤bring...into being 使……兴起/产生

⑥for the time being 暂时，眼下，目前              ⑦the whole being 全身心  

1) There is no living being without air. 没有空气就没有生物。

2) The PRC came into being in 1949. 中华人民共和国成立于1949年。

3) You can leave your suitcase here for the time being.（暂时）.

3. affect vt. 影响；侵袭，使感染；深深打动；假装 (P30, L10)

①be affected by 被……影响/感染/打动       ② n. affection

▲effect n. 结果，影响，效果，作用  [c/u]   ③have an effect on/upon 对……有影响

1) How will the tax affect（影响）people on low incomes?

2) A large number of people in the world were once affected（感染）by COVID-19.

3) Most people present at the meeting were affected（深深打动）by his speech yesterday.

4)I have a great affection for New York. 我很喜欢纽约。

4. contract vt.与……订立合同/契约；(使)收缩，缩小;感染疾病    n. 合同，契约 [c] (P30, L11)

①make/sign a contract with the supplier 与供应商签订合同   ②a contract of employment 雇用合同

③contract with someone to do sth.  (与某人) 签订合同       ④Glass contracts as it cools. 玻璃遇冷收缩。

⑤contractor 承包人; 承包商

1) Many people contracted（感染）SARS and some of them died because of it in Beijing in 2003.

2) You can contract with us to deliver your cargo.你们可以和我们签订合同，由我们负责运输你们的货物。

3) The player is contracted（签约）to play until August.

4) They have just made/signed a contract with a clothing store. 他们刚刚与一家服装店签订了合同。

5. identify vt. 找到，发现；确认，认出；显示，说明身份 (P30, L14)

①identify with sb. 与某人产生共鸣/有同感；认同/谅解/同情某人

②identify sb./sth. with sth. 把某人视为……认为某事物等同于……；认为某事物与……有关联

③ identify... as...  确认/认出……是……

▲identity n. 身份 [c/u]；特征 [c/u]；同一性，相同，一致 [u]   identity card (=ID card) 身份证，身份卡

▲identification n. 身份证明 (=ID) [u]；鉴定，辨认 [c/u]; 确认，确定 [u]

1) Don’t identify wealth with happiness. 不要认为财富就等于幸福。

2) He identified the car as that of his son. 他确认这辆车就是他儿子的。

3) She said she identified with the hero in the novel. 她说她与小说中的男主人公有同感。

4) The identification of the crash victims was a long and difficult task.

鉴别坠机意外伤亡者的工作费时而且困难重重

6. means n.“方法，方式；工具；财富，钱财”，(P30, L15)

Every means has been tried so far. 到目前为止，每一种方法都试过了。

All means have been tried so far. 到目前为止，所有的方法都试过了。

a man/woman of means 富翁/富婆

①by all means 一定，务必；当然可以，好的，没问题    ②by any means 无论如何

③by means of 借助……手段，依靠……方法，通过……

④by no means (=not by any means) 决不，一点儿不（位于句首时，句子要部分倒装）

⑤by this means 用这种方法/方式 (但：in this way, in this manner, with this method)

⑥have the means to do sth. 有钱干某事

1) All possible means have been tried (try) so far, but not a means has worked (work) yet.

2) I have tried very hard to improve my English. But by no means (决不) is the teacher satisfied with my progress.

3) I don’t have the means to pay (pay) for further education.

4) By means of（借助）WeChat, we can keep in touch with our friends for everyday communication.

7. delete vt. 删去，删除 (P30, L17)

①delete…from… 从……上删除……