Luyện đề: Monosodium Glutamate (MSG) IELTS LISTENING SECTION 4

Bên cạnh PHÂN TÍCH ĐỀ THI TASK 1 VIẾT THƯ NGÀY 05/7/2020 "you are going to take a holiday and your friend agrees to stay at your house. Write a letter to him for" IELTS WRITING GENERAL MÁY TÍNH (kèm bài được sửa HS đạt 6.0 đi thi thật), IELTS TUTOR cũng cung cấp luyện đề: Monosodium Glutamate (MSG) IELTS LISTENING SECTION 4.

Questions 31-33
Choose the correct letter A, B or C.

Monosodium Glutamate (MSG)

31. The speaker says the main topic of the lecture is
A. the history of monosodium glutamate
B. the way monosodium glutamate works
C. where monosodium glutamate is used
32. In 1908, scientists in Japan
A. made monosodium glutamate
B. began using kombu
C. identified glutamate
33. What change occurred in the manufacture of glutamate in 1956?
A. It began to be manufactured on a large scale
B. The Japanese began extracting it from natural sources
C. It became much more expensive to produce
Questions 34-40
Complete the notes below. Write NO MORE THAN TWO WORDS for each answer.

Monosodium Glutamate (MSG)

MSG contains

• Glutamate (78.2%)
• Sodium (12.2%)
• (34) .................... (9.6%)

Glutamate is found in foods that contain protein such as (35) .................... and (36) .....................
MSG is used in foods in many different parts of the world.
In 1908 Kikunae Ikeda discovered a (37) ............................
Our ability to detect glutamate makes sense because it is so (38) ........................ naturally.
John Prescott suggests that:

• Sweetness tells us that a food contains carbohydrates.
• (39) ........................... tells us that a food contains toxins.
• sourness tells us that a food is spoiled.
• Saltiness tells us that a food contains (40) ........................

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