Question

【題目】 Dinosaurs（恐龍）once lived on the earth for a long time. They suddenly disappeared millions of years ago. What happened to them？That's still a mystery. People never stop searching for the answer.

Some US scientists say it is because there were not enough male（雄性的）dinosaurs. They got this idea after researching crocodiles（鱷魚）.

Mother crocodiles lay eggs and later baby crocodiles come out. The local temperature decides the sex（性別）of the baby crocodile. When the eggs are at a temperature of 26 ℃ to 30 ℃，the babies are all girls；when the temperature is 30℃ to 34℃，there are both boys and girls；when it is 34Cto36℃，only boys are born.

Dinosaurs' babies also came from eggs. So scientists have given us a new picture: millions of years ago，it suddenly became very cold. Almost all dinosaur babies were girls. There were fewer and fewer male dinosaurs. Mother dinosaurs could not give birth to more babies. Finally，these powerful animals disappeared.

任務(wù)2：閱讀短文（B），根據(jù)英文釋義及首字母提示拼寫單詞。

【1】e_________ as many or as much as necessary

【2】l ___________ to produce eggs from the bodies of birds，insects and so on

任務(wù)3：閱讀短文（B），完成同義句轉(zhuǎn)換，每空一詞。

【3】Dinosaurs' babies also came from eggs.

Dinosaurs' babies came from eggs __________ ____________

任務(wù)4：根據(jù)短文（B）內(nèi)容回答問題。

When did dinosaurs suddenly disappear？

【4】___________________

What decides the sex of the baby crocodile？

【5】____________________________

Are the baby crocodiles only boys when it's 35℃？

【6】________________________

Answer 1

【答案】

【1】enough

【2】lay

【3】 as well

【4】Millions of years ago. /They suddenly disappeared millions of years ago.

【5】The local temperature. /The local temperature decides the sex of the baby crocodile.

【6】Yes，/Yes，they are.

【解析】

恐龍曾經(jīng)在地球上生活了很長時間，數(shù)百萬年前它們突然消失了，本文對恐龍滅絕的原因進行了推測。一些美國科學(xué)家說這是因為沒有足夠的雄性恐龍。數(shù)百萬年前，天氣突然變得很冷。幾乎所有的恐龍寶寶都是雌性。雄性恐龍越來越少�？铸垕寢尣荒苌�更多的孩子。最后這些強大的動物消失了。

【1】單詞釋義：as many or as much as necessary“盡可能多地”，根據(jù)首字母提示，答案為enough。

【2】單詞釋義：to produce eggs from the bodies of birds，insects and so on從鳥、昆蟲等的身體中產(chǎn)卵。確定為動詞“下蛋”。故答案為lay。

【3】also“也”，放于句中，as well“也”，放于句子的末尾，故句中的also轉(zhuǎn)變成必須放于句尾的as well。

【4】所設(shè)問題 When did dinosaurs suddenly disappear？恐龍是什么時候突然消失的？答案在第一段第一行They suddenly disappeared millions of years ago. 數(shù)百萬年前他們突然消失了。簡答和完整回答都可以。故答案為Millions of years ago. /They suddenly disappeared millions of years ago.。

【5】所設(shè)問題 What decides the sex of the baby crocodile？什么決定了鱷魚寶寶的性別？答案在第三段第二句。The local temperature decides the sex（性別）of the baby crocodile. 當(dāng)?shù)氐臏囟葲Q定了鱷魚寶寶的性別。簡答和完整回答都可以。故答案為The local temperature. /The local temperature decides the sex of the baby crocodile。

【6】所設(shè)問題Are the baby crocodiles only boys when it's35C？溫度在35攝氏度時，鱷魚寶寶只有雄性嗎？答案在第三段最后一句話：when it is 34℃ to 36℃，only boys are born. 溫度在34-36攝氏度時，只有雄性寶寶出生。故答案為Yes./Yes, they are。