Đáp án:

Giải thích các bước giải:

Tác hại :

+ Gây độc cho cơ thể

+ Gây tác hại cơ học

+ Gây dị ứng cho vật chủ

+ Mở đường cho vi khuẩn xâm nhập

Biện pháp :

– Tẩy giun định kỳ 6 tháng/lần ở trẻ em và người lớn. Sử dụng các loại thuốc tẩy giun theo hướng dẫn của bác sĩ.

– Rửa tay trước khi ăn và sau khi đi vệ sinh.

– Giữ vệ sinh cá nhân như: cắt móng tay, móng chân ngắn, sạch.

– Thực hiện ăn chín, uống sôi, rau sống cần rửa sạch trước khi ăn.

– Đi giày, dép, găng tay khi tiếp xúc với đất ẩm.

– Vệ sinh môi trường xung quanh.

THAM KHẢO:

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Someday, everyone has to make an important decision in his or her life. Personally, I made the most important decision in my life when I graduated from university. I was thinking whether to apply for a PhD program and continue my education or work for a company. In what follows, I state my decision and explain why I made that decision.

Firstly, this decision was very important for me because it determined my career. I had two possible careers ahead: study for PhD and continue my career as a college professor, and second, work for a company as a consultant engineer. As far as I am concerned, teaching as a professor is less paid than an engineering job. On the other hand, a college professor can have more free time and vacation than an engineer working for a company. In addition, teaching at university is a routine job and sometimes disgusting. Teaching the same lessons each semester for years, dealing with students’ various problems etc. is not interesting for a person like me. In contrast, engineering involves challenges and problem solving, which I like and suits me well. Therefore, that is why I chose working as an engineer over teaching at university.

Secondly, it was a long-term decision. One not only needs to study five to six years for PhD but also have to start a new lifestyle as a professor. In my view, I believe that a person’s job should be compatible with the person’s personality. If I do my favorite job, I can work better and more efficient. For example, when I was at university, in our math class, the professor gave me a very complex project. For I like math and computer programming, I managed to work 10 hours a day on computer, writing a personal computer code to solve some mathematical equations. What’s more, I can have more fun. Doing my favorite job in my entire life is very delightful rather than doing the job I do not like or worse, hate or forced to do. I think I made a right decision because I believe doing the job I like is very important.

To sum up, my career choice after graduation from university is the most important decision in my life for the aforementioned reasons. Choosing a job that matches one’s personality and provides a reasonable income are the most important factors in decision-making. If so, the person can be more efficient and live happier.