IELTS Listening Practice Test: Photosynthesis for Food

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This practice test will help you prepare for the IELTS Listening exam.

You will hear a lecture about improving photosynthesis to address global food insufficiency from a TED Talk.

The test contains 10 sentence completion questions that follow the natural progression of the audio.

You’ll have approximately 15 minutes to complete all questions.

Read the instructions carefully before beginning, and remember that every answer can be found in the recording.

Good luck!

Sentence Completion Questions 1-10

  • Complete the sentences below using information from the audio.
  • Write NO MORE THAN THREE WORDS AND/OR A NUMBER for each answer.
  • Pay attention to spelling and grammar.
  1. The number of food insufficient people has been increasing annually since _____.
  2. Currently, even the most efficient crops only achieve _____ of their potential photosynthetic efficiency.
  3. The Green Revolution was primarily based on mutations in _____ genes.
  4. The scientists created a _ of the photosynthesis process using differential equations.
  5. According to the speaker, photosynthesis is more complicated than _____.
  6. Each modification to photosynthesis resulted in yield increases of more than _____.
  7. The protein called _____ needed to be more abundant in leaves according to their model.
  8. The ancestors of modern crops evolved in conditions with _____ today’s CO2 levels.
  9. Slower leaf adjustment reduces _____ in shaded conditions.
  10. The speaker refers to cowpea as the _____ in West Africa.

Share Your Answers!

Please write your answers in the comments section below.

The audio transcript can be found in the lower right corner of the video, and we’ll provide the answer key in a reply.

For more listening questions, you can also visit Astrophysics Topic.

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Founder of Worddemy and an ex-IELTS student turned IELTS Instructor. After completing Academic English Program from University of Texas, he have successfully navigated the IELTS exam. As a former test-taker, he intimately understands the challenges students face. He brings a unique perspective that combines personal experience with professional expertise. Now, as an IELTS Instructor and Strategist, he leverages this firsthand knowledge to develop effective preparation strategies and materials.

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