短语搭配

1. stem from

起源于；源于；来自

2. idm from stem to stern

从船头到船尾

3. stem cell

干细胞

4. n. drill stem

钻杆

5. n. stem ginger

优等蜜饯姜

6. n. stem turn

半犁式转弯

7. n. stem stitch

绳状针脚

8. stem cells

干细胞

9. brain stem

脑干

10. neural stem cell

神经干细胞

11. valve stem

阀杆

12. stem flow

茎流；株流

13. stem the current

堵住

14. stem tide

阻止潮流

15. stem rise

茎上升

双语例句

1. What medicines do you know can stem bleeding effectively?

你知道哪些能有效止血的药？

2. The water will rise up to the Leaf through the Stem.

水将通过茎上升到叶子。

3. The flower arrangement teacher first let us cut the stem of the rose short.

插花老师先让我们把玫瑰花茎剪短。

4. Cut the stem of the flower at an angle.

斜着剪下花的茎。

5. The stipe connects the leaf to the stem.

叶柄将叶子连接到茎上。

6. Untold millions. But for me, I'm just happy that my daughter has a new role model in the STEM world!

不计其数。但对我来说，我很高兴我女儿在理工科领域有了一个新的榜样!

7. And from what I understand, shortened telomeres are associated with stem cell decline and premature aging.

据我所知，短端粒与干细胞衰退和过早衰老都有关联。

8. Most of the company's problems stem from corrupt management systems.

该公司的大部分问题都起源于腐败的管理制度。

9. It's important that we maintain social distancing to stem the tide of the coronavirus.

重要的是，我们要保持社交距离以遏制新冠病毒的蔓延。

10. The plant's stem is marked with thin green longitudinal stripes.

这种植物的茎上长有绿色细长条纹。

11. A lot of unconscious biases stem from one's sociocultural background.

许多无意识的偏见源于个人的社会文化背景。

12. All my problems stem from drink.

我所有的问题都是酗酒引起的

13. The stem of the plant is very strong.

这株植物的茎非常坚固。

14. The stem supports the leaves and flowers.

茎支撑着叶子和花朵。

15. Most of my clients come to me with problems that largely stem from having chaotic lifestyles.

多数客户来找我解决的问题很大程度上都是源于混乱的生活方式。

16. Three years after receiving stem cell treatment, a British man appears to be completely cured of the AIDS virus.

在接受干细胞治疗三年后，一名英国男子的艾滋病病毒或被完全治愈。

17. It's imperative that we do more to stem the tide of disinformation.

当务之急是，我们必须采取更多行动来阻止虚假消息的散布。

18. He stooped down, cut the stem for her with his knife and handed her the flower.

他弯下腰，用刀替她割下花茎，然后把花递给她。

19. The stem of the tree is covered in moss.

树的茎上覆盖着苔藓。

20. 'Writ' is the stem of the forms 'writes', 'writing' and 'written'.

writ是writes、writing和written三个词的词干。

21. Stem cell research is supported by many doctors.

干细胞研究得到很多医生的支持。

22. You can see a small gemma forming on the stem.

你可以看到茎上正在形成一个小芽。

23. The stem of the mushroom is edible.

蘑菇的茎可以食用。

24. Water from the root will travel to the leaf through the stem.

水从根部通过茎流向叶子。

25. He carefully removed the thorns from the stem.

他小心地从茎上去除了刺。

26. The cut was bandaged to stem the bleeding.

伤口被包扎上 防止出血

27. The authorities will need more effective measures to stem the rising tide of crime.

有关当局需要更有效的措施来遏制犯罪率的上升趋势。

28. The main stem will extend to around 12 ft, if left to develop naturally.

如果让其自然生长，主干会延伸到12英尺左右。

29. Yup. Jenner's vaccine helped stem the tide and save millions, but smallpox wasn't fully eradicated until 1980.

是的。詹纳的疫苗帮助遏制了这一疾病的扩散，拯救了数百万人，不过直到1980年天花才被完全根除。

30. Men still far outnumber women in the STEM professions.

在科学、技术、工程和数学职业上，男性比女性的数量多得多。

近义词

1. n. 干；茎；船首；血统

2. vt. 阻止；除去…的茎；给…装柄

3. vi. 阻止；起源于某事物；逆行

同根词

词根 stem

(1)stemmed adj.去掉茎或梗的；有茎或梗的；装有…柄的 v.起源于（stem的过去分词形式）；除去…的茎；给（假花等）装梗

(2)stemless adj.无茎的；无梗的

(3)stemmer n.抽梗机，除梗器；抽梗工人

考纲分布

近6年出现21次 重要程度

100% n 茎; 主干

考纲释义

1. n. 茎; 主干(the main body or stalk of a plant or shrub)

Tthe stems fail to grow away from the earth's gravity.茎在地心引力的作用下无法生长。[2020年 福建省卷 阅读理解]

He had planted Dr. Williams's quick-growing seedlings in it, but none of the stems were showing.他把威廉姆斯博士的快速生长的幼苗种在里面，但没有一个茎干露出来。[2020年 广州市 阅读理解]

The stems weren't growing upward and the roots weren't growing downward.茎没有向上生长，根也没有向下生长。[2020年 广州市 阅读理解]

考纲分布

近15年出现7次 重要程度

100% n/v 茎; 主干; 去茎叶

考纲释义

1. n/v. 茎; 主干; 去茎叶(the main body or stalk of a plant or shrub)

I am Peter Hodes, a volunteer stem cell courier.我是Peter Hodes，我是一名干细胞快递志愿者。[2016年 全国卷 阅读理解]

考纲分布

近12年出现12次 重要程度

83% n/v 茎; 主干; 去茎叶

17% v (问题/怒气)起源于

考纲释义

1. v. (问题/怒气)起源于(originate in; or be caused by)

The innovative ideas stemming from curiosity.源于好奇心的创新想法。[2021年 CET4 阅读理解C]

考纲分布

近12年出现13次 重要程度

69% n/v 茎; 主干; 去茎叶

31% v (问题/怒气)起源于

考纲释义

1. v. (问题/怒气)起源于(originate in, or be caused by)

The solution to great team performance stems from a willingness to recruit others who could direct their passion towards the third phase of entrepreneurialism.优秀团队绩效的解决方案。，源于愿意招募那些能够将他们的激情引向创业第三阶段的人。[2021年 CET6 听力]

This kind of thinking stems from our misclassification of drawing as an art form.这种想法源于我们将绘画错误地归类为一种艺术形式。[2021年 CET6 阅读理解]

考纲分布

近18年出现4次 重要程度

75% v 起源于

25% v 阻止; 遏制

0% n/v 茎; 主干; 去茎叶

考纲释义

1. v. 起源于(originate in, or be caused by)

Some growth stems from a commitment by governments and farsighted businesses to fund cleaner energy sources.一些增长源于政府和有远见的企业为清洁能源提供资金的承诺。[2018年 英语二 阅读理解A]

2. v. 阻止; 遏制

Stemming climate change, for example, is as much about changing consumption patterns and promoting tax acceptance as it is about developing clean energy.例如，遏制气候变化不仅在于发展清洁能源，也在于改变消费模式和促进人们接受纳税。[2013年 英语一 阅读理解B]

3. n/v. 茎; 主干; 去茎叶(the main body or stalk of a plant or shrub)

Though plants lack brains, the firing of electrical signals in their stems and leaves nonetheless triggered responses.虽然植物没有大脑，但它们的茎和叶发出的电信号却触发了反应。[2022年 英语一 完型填空]