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Electric Plants


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Published: 12.19.2017
Level 5   |   Time: 1:37
Accent: British, American

TOEFL: New research is looking into how plants can be used to generate electricity and produce artificial light.

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You can download the file [ HERE ].

    

triangle Directions 목표 Direcciones Instruções


  1. READ the VOCABULARY

    It is important to read the vocabulary before you watch the video. This will improve your ability to understand the video. It will also help you understand how the new vocabulary is used naturally.

  2. WATCH the VIDEO

    The first time you watch the video, just try to understand the overall situation.

  3. ANSWER the QUESTIONS

    First try to answer all the questions from memory. Then rewatch the video and try to answer the questions that you missed.

  4. WATCH and READ the SCRIPT

    Watch the video again while you read the script. Reading and listening at the same time will help you hear each individual word and improve your listening accuracy.

  5. DO the ACTIVITIES

    There are several different activities that focus on test preparation, vocabulary, grammar, and sentence structure.

  1. LEA el VOCABULARIO

    Es importante leer el vocabulario antes de ver el video. Esto mejorará su capacidad para comprender el video. También le ayudará a comprender cómo se usa el nuevo vocabulario de forma natural.

  2. VER el VIDEO

    La primera vez que vea el video, intente comprender la situación general.

  3. RESPONDE a las PREGUNTAS

    Primero intente responder todas las preguntas de memoria. Luego, vuelva a ver el video e intente responder las preguntas que se perdió.

  4. MIRAR Y LEER

    Mire el video nuevamente mientras lee el guión. Leer y escuchar al mismo tiempo lo ayudará a escuchar cada palabra individual y mejorará su precisión auditiva.

  5. HACER LAS ACTIVIDADES

    Hay una serie de actividades diferentes que se centran en la preparación de la examen, el vocabulario, la gramática y la estructura de las oraciones.

  1. 어휘 읽기

    비디오를 보기 전에 어휘와 배경을 읽는 것이 중요합니다. 이렇게 하면 비디오를 이해하는 능력이 향상됩니다. 또한 새로운 어휘가 어떻게 자연스럽게 사용되는지 이해하는데 도움이됩니다.

  2. 비디오 보기

    비디오를 처음 볼 때 전체 상황을 이해하려고 노력하세요.

  3. 문제에 답하기

    먼저 모든 질문에 답을 해보세요. 그런 다음 비디오를 다시보고 놓친 질문에 답해보세요.

  4. 비디오 보면서 대본 읽기

    대본을 읽는 동안 비디오를 다시 보세요. 읽기와 듣기를 동시에 하면 각각의 단어를 듣고, 듣기 정확도를 향상시킬 수 있습니다.

  5. 액티비티 하기

    듣기 정확도, 발음, 어휘, 문법 및 문장 구조에 초점을 맞춘 다양한 액티비티가 있습니다.

  1. LER o VOCABULÁRIO

    É importante ler o vocabulário antes de assistir ao vídeo. Isso melhorará sua capacidade de entender o vídeo. Também ajudará você a entender como o novo vocabulário é usado naturalmente.

  2. ASSISTA ao VÍDEO

    Na primeira vez que assistir ao vídeo, tente entender a situação geral.

  3. RESPONDA às PERGUNTAS

    Primeiro, tente responder a todas as perguntas de memória. Em seguida, assista novamente ao vídeo e tente responder às perguntas que você errou.

  4. ASSISTA e LEIA o SCRIPT

    Assista ao vídeo novamente enquanto lê o roteiro. Ler e ouvir ao mesmo tempo ajudará você a ouvir cada palavra individualmente e a melhorar sua precisão auditiva.

  5. FAÇA as ATIVIDADES

    Existem várias atividades diferentes que se concentram na preparação para o teste, vocabulário, gramática e estrutura de frases.

triangle Vocabulary 어휘 Vocabulário Vocabulario


  • ☐ ☐ ☐ implausible [adj] - unlikely / hard to believe
  • ☐ ☐ ☐ glow [v] - give out steady light
  • ☐ ☐ ☐ illuminated [adj] - light up
  • ☐ ☐ ☐ a modification [n] - a change
  • ☐ ☐ ☐ watercress [n] - a type of leafy plant used in salads
  • ☐ ☐ ☐ infrared [n] - a type of light (on the red end of the light spectrum)
  • ☐ ☐ ☐ the vicinity [n] - the area
  • ☐ ☐ ☐ harvest [v] - gather or collect
  • ☐ ☐ ☐ plug in [v] - connect to an electric outlet
  • ☐ ☐ ☐ a solar-cell [n] - an electrical device that changes light into electricity
  • ☐ ☐ ☐ degrade [v] - break down chemically
  • ☐ ☐ ☐ edible [adj] - able to be eaten
  • ☐ ☐ ☐ nanoparticles [n] - very small particles (between 1 and 100 nanometres in size)
  • ☐ ☐ ☐ biocompatible [adj] - not harmful to living tissue

[n] - noun,  [v] - verb, [phv] - phrasal verb,  [adj] - adjective,  [exp] - expression



triangle Comprehension Questions 이해력 검사 문제 Perguntas de compreensão Preguntas de comprensión


  1. The host suggests people may be able to read with light from a plant in the future.
    True
    False

  2. The plants are being made to produce light through genetic modification.
    True
    False

  3. The scientist used a watercress plant to produce light.
    True
    False

  4. The scientist wants to reduce the world's dependency on electric lighting.
    True
    False

  5. He mentions replacing plastic products with plants.
    True
    False

  6. He mentions replacing electronic circuit boards with plants.
    True
    False

  7. The scientist has created a plant that can connect with a cellphone.
    True
    False

  8. He has a created a plant that can be plugged in to an electrical outlet.
    True
    False

  9. Plants store energy in the form of sugar.
    True
    False

  10. He states that plants have the functions of both a solar cell and a battery.
    True
    False

  11. He states that the plants will have to be replaced if they are damaged.
    True
    False

  12. Plants are made mainly of carbon monoxide.
    True
    False

  13. He mentions that plants are degradable.
    True
    False

  14. The plants that he is creating are edible.
    True
    False

  15. The plants that he is creating were designed to be edible.
    True
    False



triangle TOEFL Questions TOEFL 문제 Perguntas do TOEFL Preguntas de TOEFL


  1. What is the discussion mainly about?
    (A) Watercress can be used for food or to produce light.
    (B) Research is being done to make plants that can be used as lights.
    (C) A recent study has produced plants that can be used in computers and phones.
    (D) Scientists are now able to genetically modify plants to produce electricity.

  2. Which of these statements is NOT true about the plants in the study.
    (A) The plants are edible.
    (B) The plants produce light.
    (C) The plants have been genetically modified.
    (D) The plants can store energy.

  3. What is the purpose of the research that is being done?
    (A) To reduce people's dependency on electric lighting.
    (B) To replace all electric lighting.
    (C) To combine plants with phones.
    (D) To make a more nutritious salad plant.

  4. According to the scientist, what advantages do these plants have?
    [Click four answers.]
    (A) They are cheap to produce.
    (B) They produce their own energy.
    (C) They can store energy.
    (D) They can repair themselves.
    (E) They degrade.
    (F) They are delicious.

  5. What does the scientist mean when he says this?

    (A) They are trying to make plants that can be used for food and light.
    (B) They didn't design the plants to be food, but they can be eaten.
    (C) They wanted the plants to be edible, but they cannot be eaten.
    (D) The plants might be edible, but it is unclear.



triangle Script 대본 Roteiro Texto


Imagine that instead of reading by lamplight, you could instead read with the aid of a glowing plant. It may sound implausible, but scientists in the U.S. have shown that plants can be illuminated without needing genetic modification. During their research, the team created watercress that glows with the hope that one day their research will help reduce our dependence on electric lighting. A professor of chemical engineering at the Massachusetts Institute of Technology, Michael Straneau who led the research, told us how it was done.

We've started to think about can we replace the things we encounter in our everyday lives. Like the things we make out of plastic and electronic circuit boards, can we replace those with a living functioning plant.

Previously this year, we’ve made a plant that acts as a chemical sensor, and it will actually connect to a user's cellphone in the vicinity using an infrared signal. This light emitting point was an obvious extension of our research. There are several reasons to do this. So first, plants harvest their own energy from the sun. They don't need to be plugged in, but they also store that energy as sugar inside the plant. So they're really a combination of a solar cell and a battery. Not just that, but they also have other interesting functions. They'll self-repair, so if they're damaged, they actually fix themselves. They're also made entirely out of atmosphere carbon dioxide. They're made of materials that degrade in water. We are not designing the plates so that it would be edible, but it turns out that the types of nanoparticles that we are using are biocompatible in that way.

Michael Straneau from MIT.