Nêu những đặc điểm cấu tạo ngoài chứng tỏ ếch cũng thích nghi với đời sống ở cạn?

I am a football fan and I regularly go to the stadium of my home team to watch them play and cheer them along.My football team play in the English Premier League. I have a season ticket for the home games and I sit in the stands with my father and brother.

In the old days, fans used to congregate and stand on the terraces but since the tragedies of Hillsborough, Bradford and Heysel, football stadiums are all-seater.A capacity crowd is expected for the local ‘Derby’ between my team and their local rivals. The rivalry is friendly but fierce and bragging rights are at stake.

I usually arrive to the stadium about an hour before the match. I enter the stadium through a turnstile and there is time to have a cup of hot bovril and a meat pie before taking to my seat about twenty minutes before kick-off.

The atmosphere is electrifying and tense. The away supporters are segregated in one corner of the ground. Both sets of supporters are vociferous in their vocal support of their respective team and joyously sing football anthems which are universally known.
The supporters wear the colours of the strip of the their team. Scarves, hats and banners are aplenty as the two teams come out of the tunnel together and handshakes are the norm with opposing players, the officials and the mascots before the final warm-up.

The time is now three o’clock on a cold, windy Saturday afternoon and it is time for the match to begin.There will be two halves of forty-five minutes of football. There will be a few minutes of added time at the end of each half for injuries or goals scored.
It is bound to be fast and furious, action-packed with drama and tension. There will be near-misses, penalty shouts and undeserved abuse hurled at the referee.The game is being broadcast live on cable television around the world. Highlights will be shown on ‘Match of the Day’ on English BBC later in the evening.

By five o’clock, the result will be known. Either we will go home full of joy or disappointment. There will be goals. There will be a story to tell.The stadium empties quickly and the supporters return to their modes of transport to be home for Saturday evening ‘tea’.
This is the story of a football match through the eyes of someone who lives and breathes football.

Chia động từ trong ngoặc ở thì quá khứ đơn
Snow White was the daughter of a beautiful queen, who died when the girl (be)1 young. Her father (marry)2.............again, but the girl’s stepmother was very jealous of her because she was so beautiful.
The evil queen (order)3.............a hunter to kill Snow White but he couldn’t do it because she was so lovely. He (chase)4.............her away instead, and she (take)5.............refuge with seven dwarfs in their house in the forest. She (live)6.............with the dwarfs and took care of them and they (love)7.............her dearly.
Then one day the talking mirror (tell)8.............the evil queen that Snow White was still alive. She (change)9.............herself into a witch and (make)10.............a poisoned apple. She (go)11.............to the dwarfs’ house disguised as an old woman and tempted Snow White to eat the poisoned apple, which (put)12.............her into an everlasting sleep.
Finally, a prince (find)13.............her in the glass coffin where the dwarfs had put her and woke her up with a kiss. Snow White and the prince (be)14.............married and lived happily ever after.

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MÌNH ĐANG CẦN GẤP !!!!!!

Gen B có 250 nuclêôtit loại Ađênin và có tổng số liên kết hiđrô là 1670. Gen B bị đột biến thay thế  một cặp nuclêôtit này bằng một cặp nuclêôtit khác thành gen b. Gen b ít hơn gen B một liên kết hiđrô. Số nuclêôtit mỗi loại của gen b là

A. A = T = 250; G = X = 390.

B. A = T = 249; G = X = 391

C. A = T = 251; G = X = 389.

D. A = T = 610; G = X = 390

Xét các phát biểu: (1) SO₂ và NO là những nguyên nhân chính gây hiện tượng mưa axit; (2) CFC và NO là những nguyên nhân chính phá hủy tầng ozon của trái đất; và (3) Ngoài CO₂­ , freon, metan và đinitơ oxit cũng tham gia đáng kể vào hiệu ứng nhà kính. Số phát biểu đúng là

A. 0 

B. 1

C. 2

D. 3