英文字根photo
字根 photo- 源自希臘文 phōs，意思是「光」。這個字根與光的產生、運用、或影像有關的詞彙關係密切，出現在許多科學、科技與日常用語中。從攝影到光合作用，photo- 字根延伸出來的單字貫穿我們生活的方方面面。以下整理出三十個含有 photo- 字根的英文單字，每個詞都附上詞義與三個例句及中文翻譯，幫助深入理解。
1. photograph
照片，攝影作品
She took a beautiful photograph of the sunset.
她拍了一張漂亮的夕陽照。
This photograph reminds me of our summer vacation.
這張照片讓我想起我們的暑假。
He studied photograph techniques in art school.
他在藝術學校學習攝影技巧。
2. photography
攝影術，攝影活動
I took a course in photography last semester.
我上學期修了一門攝影課。
Photography is both a science and an art.
攝影既是科學也是藝術。
She specializes in wildlife photography.
她專精於野生動物攝影。
3. photographer
攝影師
The photographer asked us to smile.
攝影師叫我們微笑。
She works as a freelance photographer.
她是一位自由接案的攝影師。
A good photographer knows how to capture the right moment.
一位好的攝影師知道如何捕捉正確的瞬間。
4. photosynthesis
光合作用
Photosynthesis is essential for plant life.
光合作用對植物生命至關重要。
Through photosynthesis, plants produce oxygen.
透過光合作用，植物製造氧氣。
Without photosynthesis, there would be no food chain.
沒有光合作用，就沒有食物鏈。
5. photogenic
上相的，適合拍照的
She is very photogenic.
她很上相。
The landscape was extremely photogenic.
那片風景非常適合拍照。
Being photogenic helps in modeling.
上相對當模特兒很有幫助。
6. photocopy
影印
Please make a photocopy of this document.
請把這份文件影印一下。
I lost the original but I have a photocopy.
我弄丟了原件但有影本。
She handed in a photocopy of her ID.
她交了一份身份證影本。
7. photophobia
畏光症
People with photophobia may need sunglasses indoors.
有畏光症的人在室內可能也需要戴墨鏡。
His headache came with photophobia.
他的頭痛伴隨畏光。
Photophobia is a common symptom of migraines.
畏光是偏頭痛常見的症狀。
8. photometer
光度計
A photometer measures the intensity of light.
光度計用來測量光的強度。
We used a photometer in our physics experiment.
我們在物理實驗中使用光度計。
The lab technician calibrated the photometer.
實驗室技術員校準了光度計。
9. photobiology
光生物學
Photobiology studies the effects of light on living organisms.
光生物學研究光對生物的影響。
He is doing research in photobiology.
他正在進行光生物學研究。
Photobiology is crucial for understanding skin cancer.
光生物學對理解皮膚癌很重要。
10. photoelectric
光電的
The photoelectric effect is a key concept in physics.
光電效應是物理學中的關鍵概念。
Solar panels work using the photoelectric principle.
太陽能板利用光電原理運作。
Photoelectric sensors are used in automatic doors.
光電感應器常用於自動門。
11. photoflash
閃光燈
The photographer used a photoflash to brighten the scene.
攝影師使用閃光燈讓場景變亮。
The sudden photoflash startled the baby.
突如其來的閃光燈讓嬰兒嚇了一跳。
She packed her camera and photoflash equipment.
她打包了相機和閃光燈設備。
12. photofinishing
沖洗照片
They sent the film to a photofinishing lab.
他們把底片送去沖洗照片實驗室。
Photofinishing is now mostly digital.
現在沖洗照片大多是數位化的。
She used to work at a photofinishing store.
她以前在沖洗照片店工作。
13. photogrammetry
攝影測量學
Photogrammetry helps in mapping terrain.
攝影測量學有助於繪製地形圖。
They applied photogrammetry in their archaeological project.
他們在考古計畫中應用了攝影測量學。
Drones are often used for photogrammetry.
無人機常被用於攝影測量。
14. photoplay
電影劇本
The silent era was full of classic photoplays.
無聲電影時代有許多經典電影劇本。
She wrote a photoplay for an independent film.
她為一部獨立電影寫了劇本。
Photoplays laid the foundation for modern screenwriting.
電影劇本奠定了現代劇本寫作的基礎。
15. phototropic
向光性的
Sunflowers are phototropic plants.
向日葵是有向光性的植物。
Phototropic responses help plants grow toward light.
向光反應幫助植物朝光生長。
Phototropic behavior is controlled by plant hormones.
向光行為由植物荷爾蒙控制。
16. photostat
影印文件
He submitted a photostat of his birth certificate.
他提交了一份出生證明的影印件。
Photostats were common before digital copies.
在數位複製普及前常用影印件。
The clerk gave me a photostat of the form.
辦事員給了我這張表格的影印本。
17. photojournalism
攝影新聞
Photojournalism captures history through images.
攝影新聞透過影像捕捉歷史。
He studied photojournalism at university.
他在大學主修攝影新聞。
Photojournalism often requires travel to war zones.
攝影新聞工作常需要前往戰區。
18. photomontage
影像拼貼
The poster was a photomontage of famous landmarks.
這張海報是由著名地標拼貼而成。
She created a photomontage for her art project.
她為藝術計畫創作了影像拼貼。
Photomontage can be both artistic and political.
影像拼貼可以是藝術，也可以帶有政治意涵。
19. photocurrent
光電流
The photocurrent changes with light intensity.
光電流會隨光強度改變。
They measured the photocurrent during the experiment.
他們在實驗中測量光電流。
Photocurrent is crucial in solar cell efficiency.
光電流對太陽能電池效率至關重要。
20. photocell
光電池
Photocells are used in automatic lights.
光電池常用於自動燈。
The gate opens when the photocell detects motion.
當光電池偵測到動作時，門就會打開。
Photocells convert light into electricity.
光電池將光轉換成電能。
21. photodetector
光偵測器
Photodetectors are essential in optical communication.
光偵測器在光通訊中不可或缺。
They installed a photodetector in the lab.
他們在實驗室安裝了一個光偵測器。
Modern cameras have advanced photodetectors.
現代相機有先進的光偵測器。
22. photodiode
光電二極體
Photodiodes are used in barcode scanners.
光電二極體常用於條碼掃描器。
The photodiode responded instantly to the light.
光電二極體對光有即時反應。
Photodiodes are sensitive to low light levels.
光電二極體對低光照也很敏感。
23. photonics
光子學
Photonics plays a big role in modern technology.
光子學在現代科技中扮演重要角色。
He is a professor of photonics.
他是光子學的教授。
Photonics enables fast data transfer.
光子學讓資料傳輸變得迅速。
24. photosensitive
感光的
Photographic film is photosensitive.
底片是感光的。
He has photosensitive skin and avoids sunlight.
他的皮膚對光敏感，會避免陽光。
Photosensitive materials change when exposed to light.
感光材料在照光後會變化。
25. phototransistor
光電晶體
Phototransistors are used in remote controls.
光電晶體用於遙控器。
The circuit includes a phototransistor sensor.
電路中包含一個光電晶體感應器。
Phototransistors amplify the photocurrent.
光電晶體會放大光電流。
26. photomicrograph
顯微照片
He captured a photomicrograph of a blood cell.
他拍了一張血球的顯微照片。
Photomicrographs reveal tiny structures.
顯微照片能揭示微小結構。
She published a paper with several photomicrographs.
她的論文中附有幾張顯微照片。
27. photomap
攝影地圖
The survey team made a photomap of the area.
調查隊繪製了該地區的攝影地圖。
Photomaps help in disaster management.
攝影地圖對災害管理有幫助。
They updated the photomap with new satellite images.
他們用最新衛星圖更新了攝影地圖。
28. photoresistor
光敏電阻
The photoresistor dims the light automatically.
光敏電阻會自動調暗燈光。
A photoresistor changes resistance with light.
光敏電阻會隨光線改變阻值。
He used a photoresistor in his DIY project.
他在 DIY 專案中用了光敏電阻。
29. photopigment
光感色素
Photopigments help the eye detect light.
光感色素幫助眼睛感知光。
Vitamin A affects photopigment production.
維他命A影響光感色素的生成。
Color blindness is linked to faulty photopigments.
色盲與光感色素異常有關。
30. phototoxic
光毒性的
Some medications are phototoxic.
有些藥物具光毒性。
Phototoxic reactions can damage the skin.
光毒性反應可能損害皮膚。
He experienced a phototoxic rash after sun exposure.
他曬太陽後出現光毒性皮疹。