Task 4 — Tóm tắt bài giảng

KHUNG TOEFL Task 4 — TOM TAT BAI GIANG THUAN TUY (60 giay) 20 GIAY NGHE + GHI CHU: Trong khi nghe, ghi: - Chu de chinh (1 tu hoac 1 cum tu) - Diem 1 + 1 chi tiet nho - Diem 2 + 1 chi tiet nho 60 GIAY NOI: Cau 1 (6s): "The lecture discusses [chu de chinh]." Cau 2-4 (20s): "The professor first explains that [diem 1]. [Chi tiet hoac vi du]." Cau 5-7 (20s): "The professor also talks about [diem 2]. [Chi tiet hoac vi du]." Cau 8-9 (14s): (Neu con thoi gian) "The lecturer concludes by suggesting that [ket luan hoac the implication]." VI DU — BAI GIANG VE BIO-LUMINESCENCE (phat sang sinh hoc): "The lecture discusses bioluminescence — the ability of certain organisms to produce their own light. The professor first explains that this phenomenon occurs through a chemical reaction involving a molecule called luciferin. When luciferin reacts with oxygen, it produces light without generating heat, which is why it's described as cold light. The professor also mentions that different organisms have evolved bioluminescence for different purposes. Deep-sea fish use it to attract prey. Fireflies use it for mating signals. Bacteria use it to colonise hosts. In conclusion, the lecturer suggests that understanding bioluminescence has potential applications in medicine and biotechnology." CAM BAY THUONG GAP: - Noi lam lan "lecture" voi "reading passage" — Task 4 chi co BAI GIANG (khong co bai doc) - Tom tat qua chi tiet → het gio giua y chinh thu hai - Dung ten khoa hoc ma khong doc lai duoc tu bai giang — the hien bang tu don gian hon