Unit 78：科学

万字诀 neutral

Students must wear safety goggles whenever they work in the chemistry laboratory.

学生在化学实验室操作时必须佩戴护目镜。

万字诀 neutral

The scientist published groundbreaking research last month.

这位科学家上个月发表了突破性研究成果。

万字诀 neutral

The biologist spent ten years studying coral reef ecosystems.

这位生物学家花了十年时间研究珊瑚礁生态系统。

万字诀 neutral

Einstein was a theoretical physicist who revolutionized modern physics.

爱因斯坦是一位理论物理学家，彻底改变了现代物理学。

万字诀 neutral

The chemist analyzed the water sample for harmful chemicals.

这位化学家分析了水样中的有害化学品。

万字诀 neutral

Farmers must handle agricultural chemicals with strict safety protocols.

农民必须严格遵守安全规程来处理农用化学品。

万字诀 neutral

Students learned to adjust the air hole on the Bunsen burner for a blue flame.

学生们学习调节本生灯的进气孔以获得蓝色火焰。

万字诀 neutral

The reaction was observed carefully in a clean, dry test tube.

该反应在洁净干燥的试管中被仔细观察。

万字诀 neutral

Pour the solution into a 250-mL beaker and stir gently.

将溶液倒入250毫升烧杯中并轻轻搅拌。

万字诀 neutral

Using a compound microscope, we examined plant cell structure.

我们使用复式显微镜观察了植物细胞结构。

万字诀 neutral

pestle and mortar

研钵和研杵

万字诀 neutral

Strong neodymium magnets can interfere with pacemakers.

强钕磁铁可能干扰心脏起搏器。

万字诀 neutral

Static electricity caused the balloon to stick to the wall after rubbing.

静电导致气球在摩擦后粘在墙上。

万字诀 neutral

Always unplug appliances before cleaning to avoid electric shock.

清洁前务必拔掉电器插头，以防触电。

万字诀 neutral

The smartphone battery lasts over 12 hours with moderate usage.

这款智能手机电池在中度使用下续航超过12小时。

万字诀 neutral

Forensic scientists extracted DNA from the hair sample for profiling.

法医科学家从毛发样本中提取DNA用于基因分型。

万字诀 neutral

Scientists successfully created Dolly the sheep through reproductive cloning.

科学家通过生殖克隆成功培育出多莉羊。

万字诀 neutral

Genetic engineering has enabled crops to resist pests and droughts.

基因工程已使作物具备抗虫和抗旱能力。

万字诀 neutral

The human body contains trillions of specialized cells.

人体含有数万亿个特化的细胞。

万字诀 neutral

Water is a simple molecule composed of two hydrogen atoms and one oxygen atom.

水是一种由两个氢原子和一个氧原子构成的简单分子。

万字诀 neutral

Quartz crystals form naturally under high pressure and temperature.

石英水晶在高温高压下自然形成。

万字诀 neutral

At room temperature, iron remains a rigid solid.

在室温下，铁保持为坚固的固体。

万字诀 neutral

Mercury is the only metal that exists as a liquid at room temperature.

汞是唯一在室温下呈液体的金属。

万字诀 neutral

Oxygen is a colorless, odorless gas essential for human respiration.

氧气是一种无色无味的气体，对人类呼吸至关重要。

万字诀 neutral

When water reaches 100°C at sea level, it turns into visible steam.

当水在海平面达到100°C时，会转化为可见的蒸汽。

万字诀 neutral

The team designed a double-blind experiment to test the new drug’s efficacy.

研究团队设计了一项双盲实验来检验新药的有效性。

万字诀 neutral

Their hypothesis was that increased screen time correlates with reduced sleep quality.

他们的假设是屏幕使用时间增加与睡眠质量下降相关。

万字诀 neutral

The final result of the clinical trial showed statistically significant improvement.

该临床试验的最终结果显示出具有统计学意义的改善。

万字诀 neutral

A violent chemical reaction occurred when the two solutions were mixed.

当两种溶液混合时，发生了剧烈的化学反应。

万字诀 neutral

They recorded their debut album in a converted warehouse studio.

他们在一间改造的仓库录音室录制了首张专辑。

万字诀 neutral

Researchers used high-resolution microscopes to observe cellular division.

研究人员使用高分辨率显微镜观察细胞分裂。

万字诀 neutral

Bright flowers help to attract bees to the garden.

鲜艳的花朵有助于吸引蜜蜂到花园。

万字诀 neutral

Like charges on two balloons cause them to repel each other strongly.

两个气球上相同的电荷导致它们强烈地相互排斥。

万字诀 neutral

Pour the batter slowly into the greased pan.

将面糊缓缓倒入已抹油的烤盘中。

万字诀 neutral

Sugar will dissolve quickly in hot water.

糖会在水中迅速溶解。

万字诀 neutral

Please heat the soup on low for five minutes.

请用小火把汤加热五分钟。

万字诀 neutral

Dry leaves burn rapidly when exposed to an open flame.

干树叶暴露于明火时会迅速燃烧。（燃烧：若将纸张置于明火附近，它会迅速燃烧并化为灰烬。）

万字诀 neutral

Boil the pasta in salted water for 10 minutes.

在加盐的水中煮意大利面10分钟。

万字诀 neutral

Puddles evaporate quickly on a hot sunny day.

在炎热晴朗的天气里，水洼蒸发得很快。

万字诀 neutral

Engineers use liquid nitrogen to cool superconducting magnets rapidly.

工程师使用液氮快速冷却超导磁体。

万字诀 neutral

Lake water begins to freeze when temperatures stay below 0°C for 48 hours.

当气温持续低于0°C达48小时，湖水开始冻结。（冻结：纯水在标准大气压下恰好于0°C冻结。）

万字诀 neutral

Ice melts into water when the temperature rises above zero.

温度升到零度以上时，冰会融化成水。

万字诀 neutral

A wooden boat can float on the surface of the lake.

木船可以漂浮在湖面上。

万字诀 neutral

A lead weight sinks immediately when dropped into deep water.

铅坠投入深水后立即下沉。（下沉：铁锚一投入深海便立即下沉。）