IELTS Listening Practice Mosquito Bite
IELTS Listening Practice Mosquito Bite
About this activity
- This activity is labeled round table by Dr. Hariri, the creator and administrator of LELB Society.
- This activity is on the premise of Flipped Learning, according to which the students watch a video before the class, carry out research into the selected theme, and prepare themselves for an informed discussion in the class.
- This activity is on the basis of both synchronous and asynchronous computer-mediated communication (CMC), according to which the students are also encouraged to be active even before the class.
- In this flipped classroom activity, the students are encouraged to utilize the comment form at the bottom of the post to to exchange their questions, findings, and experiences with each other. Later on, we will discuss the asynchronous activities in the class. In a few words, “let’s learn from each other.”
About the Video Files
- The video files are meticulously selected among the most prominent academicians, lecturers, and scientists based on Google Scholar.
- We might refer to the exact elapsed time ⌛ of the video files to pinpoint specific statements, messages, etc.
Writing Activity
- You should adopt a formal register in your written contributions in the comment form.
- To give an answer to a question or comment, use the Reply button.
- In our written activities, we can practice negotiation of meaning (sharing our findings with regard to the selected themes) and negotiation of form (performing peer-reviewed error correction).
- Put a number before your questions in the comment form successively to refer to them more easily in the class.
- Your questions should be unique and not previously raised by your classmates in the comment form.
Expectations
- You should take equal turns in speaking. The maximum amount of time you can have is 60 seconds.
- This is a fully organized activity; consequently, all your contributions, including comments, replies, and verbal opinions, must be with direct reference to the assigned topic and its corresponding video. Any irrelevant contribution is strongly frowned upon.
- You will be stopped if your speech appears to be irrelevant or not supported by evidence.
- Students leaving comments below will be given priority over others in our informed conversations.
Instructions for the IELTS Listening Part
In this part of your exam, you will be given some instructions as the following:
- Do not open your question paper until you are told to do so.
- Write your name and your candidate number on the specified space on top of this page.
- Listen closely to the instructions for each part of the paper.
- Write your answers to the questions on the questions paper while you are listening.
- At the end of the test, you will have an extra 10 minutes to transfer your answers to a separate answer sheet. Use a pencil to copy the answers.
Section 1
In this section, you will listen to a conversation between two speakers on an everyday and comment topic, such as organizing events, arranging a trip, talking about the weather, etc. You are supposed to listen closely to get specific factual information.
Section 2
This is a monologue on a general topic, such as public events. Again, you are supposed to listen closely to acquire specific factual information.
Section 3
In this section, you will listen to a discussion between 2 or 4 speakers on an academic topic, such as assignments, taking courses, attending seminars, etc. While focusing on specific factual information, you should also pay attention to the speakers’ attitudes and opinions.
Section 4
In this section, you will listen to a lecture (monologue) on an academic topic. You should focus on specific factual information as well as the main ideas. Also you should pay attention to the speaker’s attitudes and opinions.
You will have around 30 seconds before the test starts to see what kinds of information will be required (for instance, names, dates, times, money, etc.)
Mosquito’s bite mechanism
A mosquito’s bite mechanism is a fascinating and complex process. When a mosquito lands on the skin, it uses its proboscis, a specialized mouthpart, to pierce the skin and locate blood vessels. The proboscis is equipped with six needle-like structures: two maxillae that saw through the skin, two mandibles that hold tissues apart, a labrum that finds and pierces blood vessels, and a hypopharynx that injects saliva. The saliva contains anticoagulants to prevent blood from clotting, which allows the mosquito to feed more efficiently. This injection of saliva often causes the itchy, red bumps that appear after a bite. Understanding this mechanism not only provides insight into mosquito behavior but also helps in developing measures to prevent mosquito-borne diseases.
6. Elaborate on the different mechanisms of the six needles inside a mosquito’s sheath.
5. When does a mosquito separate water from the blood?
Mosquitoes separate water from the blood during the feeding process. When a mosquito sucks blood, it consumes more liquid than it needs. To avoid becoming too heavy and to concentrate the nutrients, the mosquito quickly expels the excess water from its body through its anus. This process happens while it is still feeding, allowing the mosquito to efficiently process the blood meal and stay light enough to fly away.
4. How many needles are there inside of mosquitos’ sheath?
It’s better to omit “of” after “inside”.
mosquitoes’ sheaths
Thank you so much.
You’re so welcome.
3. What makes a mosquito’s bite so effective?
A mosquito’s bite is highly effective due to its specialized mouthparts and the stealthy approach it employs. The mosquito’s proboscis, a needle-like structure, is composed of multiple parts that work together to pierce the skin and locate blood vessels with precision. The mosquito injects saliva containing anticoagulants to prevent the blood from clotting, allowing it to feed without interruption. Additionally, the saliva has mild anesthetic properties, which can numb the area and make the bite less noticeable, giving the mosquito ample time to finish feeding before being detected. This combination of anatomical specialization and biochemical tools makes the mosquito’s bite both efficient and effective in extracting blood from its host.
2. Which mosquitoes tend to sting creatures? Why?
Only female mosquitoes tend to “sting” or bite creatures, and they do this to obtain the blood needed for developing their eggs. Blood provides essential nutrients, such as proteins and iron, which are crucial for egg production. Male mosquitoes, on the other hand, primarily feed on nectar and other plant juices. The need for a blood meal in females is directly linked to their reproductive cycle, making it an essential part of their life process.
1. Who are the most vulnerable to mosquitoes?
Mosquitoes are particularly drawn to certain groups of people and animals, making them more vulnerable to bites. Generally, individuals who emit more carbon dioxide, such as larger people and pregnant women, tend to attract mosquitoes. People with higher body temperatures and those who sweat more are also more likely to be bitten. Additionally, mosquitoes are attracted to specific body odors and chemicals found in sweat, which can vary from person to person. Certain blood types, particularly type O, are also known to be more attractive to mosquitoes. On the animal front, mammals like cattle, horses, and dogs are common targets due to their large size and warmth.