Chọn C                                 Câu đề bài: “Mặc dù sấm và sét được tạo ra cùng một lúc, sóng ánh sáng đi xa hơn___________, vì vậy chúng ta thấy sét trước khi chúng ta nghe thấy sấm ".

Đáp án C: than sound waves do

—» Đây là cách nói rút gọn của “than sound waves travel”: cấu trúc so sánh hơn kém:

S + V + trạng từ ngắn đuôi er/dài thêm more + than + S + V.

Chọn D

Kiến thức: Từ vựng

Giải thích:

  A. Consequently (adv): Do đó, Kết quả là

B. Finally (adv): Cuối cùng

  C. Cautiously (adv): Thật thận trọng        

D. Miraculously (adv): Thật kì diệu

Tạm dịch: Thật kỳ diệu là anh ta không hề hấn gì sau khi bị sét đánh

The weather is not beautiful all of the time. Perhaps you can remember a day when bad weather made you afraid. One kind of bad weather that scares many people is called a thunderstorm. This is what happens when there is a thunderstorm. First, you see a sudden flash of bright light. A few seconds later you hear a loud rumbling sound. This quick flash is called lightning and the loud sound is called thunder. Lightning is colorful , but it can cause serious problems. Lightning is electricity that is moving very rapidly. It may be moving between a cloud and the ground, between two clouds, or between two parts of the same cloud. The lightning heats the air around it. This hot air expands, or get bigger, and it causes the air to move in waves. The air waves pass you in a series, one after another. For this reason, you may hear many rumbles and not just one sound.

__T__ 29/ Lightning may move between a cloud and the ground.

__F__ 30/ Thunder is a very bright light in a thunderstorm.

__T__ 31/ When you hear thunder you may hear a series of loud sounds and not one

big sound. This is because the air waves pass one after another.

__T__ 32/ Lightning always moves rapidly.

Thấy 2 bạn trước làm có chỗ khác nhau nên mình làm lại, nhma 1 số câu mình không biết phải giải thích như nào =))))

people have always marvelled (1)______ lightning even though they were unable to (2)_______it.The Greeks thought that lightning was a killer bolt thrown to the earth by the god Zeus to (3)____ his anger.In Viking mythology, lightning came from Thor's hammer and thunder from the wheels of his chariot as it was (4)_____ across the sky by two goats. In some cultures, lightning was considered a sign of good (5)_____ and places touched by it were considered special and magical

The nature of lightning was a (6)______ mystery until 1752.An American scient'st named Benjamin Franklin (7)______ its secrets.In an experiment with a tiny cell, he made a small spark of electicity. He wanted to find out (8)______ that spark was the same as lightning.During a storm, he (9)____ a kite high above the ground. (10)______ to it was a key. When a lightning bolt struck the kite, the energy went down the string to a key (11)_______ in a bottle. The key glowed and produced a electic spark proving Franklin (12)______.He had discovered that lightning was really an electric spark .Although he knew what it was, (13)______ would be many more years (14)_____ scientists were able to explain (15)______ lightning is created

1, A,about B.at C.with D.over

2,A.explain B.account C.interpret D.solve

3, A.express B.indicate C.signal D.show

Khi nói đến feelings (sadness, happiness,...) thì dùng express

4. A.run B.directed C.pulled D.pushed

5.A.fortune b.luck C.opportunity D.chance

6. Acomplete B.whole C.quite D.perfect

mystery chỉ đi được với whole hoặc complete thoi, nhưng mà là "the whole" mystery mới đúng nên ở đề có 'a' thì chọn complete í

7.A.invented B.revealed C.discovered D,disclosed

8. A,so B.such C.about D.if

Có cụm find out about something, nhưng vì sau chỗ trống là clause nên chọn if

9.A.drove B.flew C.controlled D.steered

10. A, attached B.connected C.stuck D.clinging

11.A.contained B.enclosed C.placed D.inserted

12.A.reasonable B.sensible C.right D.correct

prove someone right/ wrong chứ không 'correct' được

13. A,there Bit C.he D.they

14. A.before B.when C,that D.after

15. A.what B.when C,how D.where

Đáp án A.

Ta có thành ngữ Lightning never strikes twice in the same place: sét chẳng đánh ai hai lần (Một sự kiện không bình thường hoặc ngẫu nhiên sẽ không xảy ra lại đúng vào hoàn cảnh hoặc cùng với người như lần trước)