Trang đã được tối ưu để hiển thị nhanh cho thiết bị di động. Để xem nội dung đầy đủ hơn, vui lòng click vào đây.

Many groups worldwide are trying to develop vaccines...

Câu hỏi: Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks from 26 to 30.
Many groups worldwide are trying to develop vaccines that protect against a wide range of coronaviruses and prevent (26)_________pandemic. These efforts have now been boosted by the discovery that some healthcare workers had pre-existing immunity to the SARS-CoV-2 virus during the first wave of the pandemic. During the first half of 2020, around 700 healthcare workers in the UK were tested weekly as part of a crowdfunded study called Covid Sortium. Most of these people, who wore protective equipment, never tested positive for covid-19 in PCR tests or developed covid-19 antibodies - proteins that (27)_________to the outside of viruses, preventing cells from being infected. (28)__________, when Leo Swadling and Mala Maini at University College London and their colleagues looked more closely, they found some of those (29)____________tested negative had a protein in their blood that is linked to covid-19 infection, as well as T cell responses to the SARS-CoV-2 virus. T cells are (30)_________of the immune system.
Adapted from https ://www. new scientist, com/
The word or phrase which best fits the gap (27) is...
A. bind
B. respond
C. connect
D. abide
Giải thích:
A. bind (v): liên kết, nối → bind to something: liên kết với cái gì (về mặt hóa học)
B. respond (v): phản hồi → respond to somebody/something: phản hồi ai/cái gì
C. connect (v): kết nối → connect something to/with something: kết nối cái gì với cái gì
D. abide (v): tuân theo → abide by something: tuân theo cái gì
Tạm dịch: Most of these people, who wore protective equipment, never tested positive for covid-19 in PCR tests or developed covid-19 antibodies – proteins that bind to the outside of viruses, preventing cells from being infected.
(Đa số những người này, mặc thiết bị bảo hộ, và không bao giờ có kết quả dương tính với Covid-19 qua kiểm tra PCR hoặc đã hình thành kháng nguyên Covid-19 - protein liên kết với bên ngoài vi rút, ngăn chặn các tế bào khỏi bị nhiễm bệnh.)
Đáp án A.
 

Câu hỏi này có trong đề thi