头皮屑是怎么产生的，如何才能彻底摆脱它？ - 托马斯·L·道森 (Thomas L. Dawson)：英语精读讲义

这句开场主要起什么作用？

1. 它要求观众比较不同森林的面积。
2. 它明确表示故事发生在一片真正的森林里。
3. 它先建立比喻场景，把真正的头皮环境留到后面再揭示。

用 be equipped with 完成句子：The rescue boat is ____ life jackets and a radio.

哪一句正确地让句首 -ing 短语描述主句主语？

1. Walking home, the streetlights turned on.
2. Walking home, the rain started suddenly.
3. Walking home, Mia called her brother.

用本讲解中的两个词补全句子，表示“处于理想环境”：With a warm bed and endless snacks, the rescued dog was ____.

说话人使用 But wait, what's this? 是在做什么？

1. 打断叙述，把注意力引向一个意外发现。
2. 因为没有更多内容可说而结束叙述。
3. 要求观众在叙述继续之前给出详细解释。

为第二句选择最合适的连接语：The old house looks empty. A family of owls lives in the attic.

1. Meanwhile
2. For example
3. In fact

用 a type of 完成分类句：A violin is ____ string instrument.

原句中的 lives and dines on 产生了什么表达效果？

1. 它表示酵母菌会和人一起参加正式晚宴。
2. 它表示酵母菌只在头皮上移动，并不进食。
3. 它把酵母菌生动地写成生活在头皮上并在那里进食的居民。

哪一句能自然地表示某项结果出现在一个群体中大约 50% 的成员身上？

1. The result occurs throughout the population.
2. The result occurs in exactly half of the population.
3. The result occurs in about half of the population.

用一个可以替代 other plants 的词完成比较：Some plants need more water than ____.

用 repair 的被动形式完成情态被动问句：Can the damaged screen ____?

哪句话先承认一种熟悉的看法，然后再重新界定它？

1. We might consider sleep a waste of time, but it's really essential for learning.
2. Sleep is essential for learning, and it also helps the body recover.
3. Do you consider sleep important for learning?

用 host 的动词原形完成句子，表示“提供栖息环境”：A healthy pond can ____ many kinds of insects.

使用 make oneself at home 的过去式和正确的反身代词完成句子：The stray cat soon ____ in our garage.

哪一句使用逗号隔开的同位语来解释一个科学术语？

1. Mercury, the closest planet to the Sun, has a very short year.
2. Because Mercury is close to the Sun, it has a very short year.
3. Mercury is the closest planet to the Sun and has a very short year.

用表示“促成某种结果”的 make for 完成句子：Good lighting can ____ a more welcoming room.

用 be fond of 的正确形式完成句子：Leo ____ drawing maps in his notebook.

哪个句子正确表达“腺体产生并释放一种名为 sebum 的油性物质”？

1. The glands reveal a secret oily substance named sebum.
2. The glands secrete an oily substance called sebum.
3. The glands keep an oily substance hidden and call it sebum.

用正确形式的 be thought to 完成句子：The ancient tool ____ have been used for cooking.

用 evolved to 完成句子：Over many generations, these moths ____ blend into dark tree bark.

用 because of 完成句子：The outdoor concert was canceled ____ heavy rain.

使用 one of the + 最高级 + 复数名词补全句子，表达“最古老的建筑之一”：This is ____ in the city.

在这个片段中，consequently, one of the yeastiest 起到了什么作用？

1. 它标示结果，并以俏皮的方式把某物描述为酵母最多的那些事物之一。
2. 它引出例子，并表示完全没有酵母。
3. 它引出对比，并给出一种真菌的正式学名。

哪句话用 As 表示一个背景过程在可能的结果逐渐出现时同步发展？

1. As the temperature dropped, ice began to form on the pond.
2. Leo works as a guide during the summer.
3. This bag is as heavy as mine.

The pond froze overnight. 选择能正确引出原因的句子。

1. This is when the temperature fell below zero.
2. This is because the temperature fell below zero.
3. This is why the temperature fell below zero.

用 is composed of both ... and ... 完成句子：The committee ____ teachers ____ parents.

阅读这个句子：The flat blocks pack together neatly. 这里的 pack together neatly 是什么意思？

1. 这些方块以整齐的方式紧密贴合。
2. 这些方块被放进旅行袋里。
3. 这些方块散开，中间留有很大的空隙。

阅读：Solar panels cost a lot at first. On the other hand, they can lower electricity bills over time. On the other hand 表示什么关系？

1. 第二句说明第一句话造成的结果。
2. 第二句提出同一话题中有对比的另一面。
3. 第二句给出第一句话的一个例子。

从句 “that create an irregular kink in their structure” 说明了什么？

1. 它描述某个人的特殊癖好。
2. 它说明双键对结构造成的影响。
3. 它指出是谁发现了这种油脂。

用 produce 的 by + -ing 形式补全句子：Bacteria digest starch ____ an enzyme that breaks it down.

哪句话最清楚地表示“这台扫描器读取二维码，不读取其他类型的代码”？

1. Only the scanner reads QR codes.
2. The scanner reads QR codes only at night.
3. The scanner reads only QR codes.

用 leave ... behind 的正确形式完成句子：The gardener removed the weeds, ____ the flowers ____.

用 soak into 完成句子：The spilled juice began to ____ the carpet.

用 pry + 宾语 + open 完成句子：She used a screwdriver to ____ the stuck lid ____.

请用 allow 和 escape 的正确形式完成表示结果的从句：The seal split, ____ air ____.

哪一句中的 breach 和 respond 与原句一样，表示“屏障受损后采取保护行动”？

1. The lawyer detects a breach of contract and responds by sending a notice.
2. Maya responds defensively when asked about the broken cup.
3. The security system detects a breach in the fence and responds by locking the gate.

这个高亮结构表达了怎样的因果链？

1. 瘙痒引发炎症，炎症随后引起头皮屑。
2. 前面的动作引发炎症，而炎症又引起瘙痒。
3. 前面的动作分别引发炎症和瘙痒。

请用 make 和 proliferate 的正确形式完成句子：High nutrient levels ____ these bacteria ____ rapidly.

用 repair 的目的不定式完成句子：The crew blocked the walkway ____ the damaged safety barrier.

在句子 “The kneecap, or patella, protects the knee,” 中，or 起什么作用？

1. 它表示这两个名称指膝盖的不同部位。
2. 它引出了同一身体部位的专业名称。
3. 它让读者选择究竟是哪个身体部位保护膝盖。

哪句话最清楚地表示同一个主语依次完成四个步骤？

1. The baker mixes the dough, lets it rise, shapes it, and bakes it.
2. The baker is patient, careful, busy, and ready.
3. The baker bakes the dough, mixes it, lets it rise, and shapes it.

哪句话最自然、最符合规范地描述树叶自然脱落？

1. Many trees take off their leaves in autumn.
2. Many trees shed their leaves in autumn.
3. Many trees shed off their leaves in autumn.

用 far too + 形容词 + to-infinitive 补全句子，表达“重得多，根本搬不动”：The suitcase is ____ to carry upstairs alone.

用短语动词 churn out 补全句子：This press can ____ 2,000 labels an hour.

用 mean 的 -ing 形式完成这个简洁的结果结构：The gym is closed, ____ we have to practice outside.

哪项描述最符合 large greasy clumps？

1. 黏在一起、又大又滑腻的油性团块。
2. 彼此分开、自由漂浮的细小颗粒。
3. 均匀铺在表面上的薄薄一层干燥物质。

用 as 补全句子，使其表示“以……形式”：The medicine is released ____ tiny droplets.

前文已经解释了反复冻融损坏路面的各个步骤。哪一句最适合用来收束这段机制说明？

1. This is how repeated freezing and thawing create cracks in the road.
2. This is why repeated freezing and thawing create cracks in the road.
3. How do repeated freezing and thawing create cracks in the road?

在句子 'The puppy has a voracious appetite.' 中，voracious appetite 表达什么意思？

1. 这只小狗拒绝所有食物。
2. 这只小狗只想吃一点点。
3. 这只小狗很想吃很多东西。

使用 by 和 turn 的 -ing 形式完成句子：The most effective way to save energy is ____ off unused lights.

用表示“去除不想要的问题”的三个词补全句子：We need to ____ the mold in the bathroom.

按照 apply、directly 和 to 的正确形式与顺序补全产品说明：The treatment uses a cream ____ the skin to reduce redness.

用上面学到的受众定位短语补全句子：____ seasonal allergies, checking the pollen forecast can help.

听完整的英文句子并选择你听到的内容。注意 comes and goes 中弱读的 and 以及 comes 和 goes 的词尾音。

1. The pain comes, then goes away for good.
2. The pain comes and goes during the day.
3. The pain comes and grows worse during the day.

用 as 表示随时间展开的变化，并在表示原因的名词短语前使用 due to，完成句子：River levels vary ____ mountain snow melts ____ warmer spring temperatures.

在医学文章中，bacteria colonize the skin 是什么意思？

1. 它们在皮肤上建立群体，但不一定引发疾病。
2. 它们会清除皮肤上的其他所有微生物。
3. 它们总会进入血液并引发疾病。

用本课的让步开头和部分否定短语完成句子：____ the safety rules were clear, ____ followed them.

使用 susceptible 和正确的介词完成句子：Young plants are more ____ frost damage than mature plants.

哪项陈述最准确地解释了 genetic predisposition？

1. genetic predisposition 表示这种状况将来一定会出现。
2. genetic predisposition 可能会增加风险，但不保证一定会出现这种状况。
3. genetic predisposition 证明这个人已经有这种状况。

使用 permeable 和正确的介词完成句子：This fabric is ____ air.

这句话说明了怎样的研究状态？“Scientists are currently investigating if the new material is safe.”

1. 科学家已经不再关心这种材料是否安全。
2. 科学家已经证明这种新材料是安全的。
3. 这个安全性问题仍在研究中。

哪一句正确使用了 do, in fact, 来强调动词？

1. The results are do, in fact, support the original theory.
2. The results do, in fact, support the original theory.
3. The results do, in fact, supports the original theory.

哪句话正确询问某个因素是否是另一个结果的原因？

1. The team is investigating where the damaged motor was taken.
2. The team is investigating whether overheating is what's leading the motor to fail.
3. The team has confirmed that overheating is leading the motor to fail.

哪句话自然地用 communicate with 描述非人类系统？

1. The sensors pronounce radio signals to the control system.
2. The sensors communicate with the control system through radio signals.
3. The sensors discuss their weekend with the control system.

哪句话使用了相同的结构来介绍方法、技术名称及其功能？

1. The camera uses light, and the sensors have a technical name.
2. The camera works because photodiodes are small sensors.
3. The camera works using sensors called photodiodes that detect light.

用目标动词完成句子：This update is designed to ____ harmful processes and ____ useful ones.

哪句话最适合表达一种可能的未来研究成果，同时不保证它一定实现？

1. If researchers can identify the cause, they could develop a more accurate test.
2. If researchers could identify the cause yesterday, they develop a more accurate test.
3. If researchers identify the cause, they will definitely solve every related problem.

用目标疑问框架完成研究语境中的句子：Researchers are investigating ____ changing the school start time.

哪一句提出了尚未证实的假说，并用逗号标出的 which 从句补充信息？

1. Researchers have proved that the lake, which freezes every winter, supports a rare microbe.
2. Researchers hypothesize that the lake, which freezes every winter, supports a rare microbe.
3. Researchers hypothesize that the lake which freezes every winter supports a rare microbe.

用高亮结构完成这个新句子，使其表示“提供稳定的食物来源”：Fallen fruit can ____ insects.

哪项说法正确区分了传染性与健康影响？

1. 一种状况即使不具传染性，也可能令人不适。
2. 如果一种状况不具传染性，它就不可能引起任何不适。
3. 每一种健康威胁都会在人与人之间传播。

使用 seem、excel 和正确的连接词完成句子：From the test results, these robots ____ sorting small objects quickly.

like Staphylococcus aureus 在这句话中起什么作用？

1. 它把 aureus 当作描述所有微生物的普通形容词。
2. 它把 Staphylococcus aureus 作为一种危害更大的微生物的例子。
3. 它表示这些微生物在外观上与 Staphylococcus aureus 相似。

填入表示“调查直至找到真正原因”的习语：The engineers promised to ____ the repeated shutdowns.

一位评论者想引出一个需要强调的结论。用本课的准确表达完成句子：____, the revised guide is easier to follow.

句子“The sudden change is a real head-scratcher”是什么意思？

1. 这个突然的变化很难解释。
2. 这个突然的变化是一种用在头上的工具。
3. 这个突然的变化让每个人的头皮都发痒。

这句话中的 conspire to create 是什么意思？

1. 身体阻止微生物引发任何状况。
2. 微生物和身体相互作用，共同造成一种令人不适的状况。
3. 微生物和身体有意识地制订了秘密计划。

哪一句自然地使用 eradicate 表示“彻底消除”？

1. This mint eradicates bad breath for five minutes, but then the odor returns.
2. The public health program aims to eradicate malaria from the region.
3. I eradicated one pencil from my backpack before school.

完成这个假设选择问题：If you ____ visit any planet, which ____ you choose?