閱讀下列短文,從每題所給的四個(gè)選項(xiàng)(A、 B、C和D) 中,選出最佳選項(xiàng)。

                                     A

                          

             For decades,scientists thought the Tandayapa Andean toad (蟾蜍) was extinct. But a group of researchers recently came upon two living Tandayapa Andean toads in the foggy forests of Ecuador (South America) .

             The rare,tiny brown toad was first discovered in 1970 in the Tandayapa Valley,located in Pichincha province in the northern part of Ecuador.

             After finding one toad,biologists spent weeks looking for more. But they did not find any,and the toad was declared extinct almost as soon as it was discovered.

             More than 40 years later,a team of scientists found not one,but two toads similar to the Tandayapa Andean. But these toads were not found in the same place. Instead,scientists found the twosome in the foggy forests of the neighboring Imbabura province.

            “At first sight I couldn’t identify the species 一 it wasn't even on my radar (雷達(dá)) , since they hadn’t been seen in …years ,” Ryan Lynch,the lead scientist,told National Geographic. aBut I knew that it was something very rare."

             On a return trip,biologists found many more specimens of the brown toad in the same area. Experts have declared that the species is not at all extinct.

             The Tandayapa toad develops differently from other toads. Most toad babies start life as tadpoles,which have gills (鰓) and live in water. But Tandayapa toad babies,called toadlets,develop on land. These toadlets skip the tadpole stage entirely.

              The Tandayapa's appearance is strange too. As toadlets,they are covered in patterns of copper and gold,with snaking white lines on their bellies. This pattern gets darker as the toads grow. By the time they become adults,they appear completely brown without a pattern and have white bumps (凸起) on their sides. Typical toads don't experience such extreme color and pattern changes.

              Although scientists are excited about the reappearance of the Tandayapa toad,they still worry about the species' survival. Humans have been clearing much of the. forest where the toads live.

However,environmental groups are working to get these forest areas protected. Many hope that the rediscovery of the tiny brown Tandayapa toad may help make their case.

1. The Tandayapa Andean toad discovered in 1970 .

   A. preferred living in pairs

   B. got used to the dry weather

   C. could be spotted everywhere in Ecuador

   D. was considered the only one of this species

2. Ryan Lynch discovered Tandayapa Andean toads .

   A. completely by chance

   B. with the help of his radar

   C. thanks to his return trip to Ecuador

   D. in the same place the first toad was found

3. The Tandayapa Andean toads experience color changes when .

   A. they are threatened

   B. the weather changes

   C. they are growing up

   D. their habitats change

4. What's the present situation of the Tandayapa Andean toads?

   A. They multiply rapidly.

   B. They’ re still in danger.

   C. They,re well protected.

   D. They grow bigger than before.

5. What would be the best title for the text?

   A. Living on land

   B. Lost in the forest

   C. Fighting for survival

   D. Back from extinction

1. D 2. A 3. C 4. B 5. D

A篇(自然)

本文是說(shuō)明文。文章介紹了認(rèn)定已滅絕的Tandayapa Andean蟾蜍再次被發(fā)現(xiàn)。

1. D. 細(xì)節(jié)理解題。由第三段的the toad was declared extinct almost as soon as it was discovered 可知,1970年,Tandayapa Andean蟾蜍被認(rèn)定是這類(lèi)物種中的唯一—只。

2. A. 推理判斷題。由第一段的researchers recently came upon …和第五段 Ryan Lynch 說(shuō)的 At first sight I couldn’t identify the species — it wasn,t even on my radar 可知,Ryan Lynch完全是偶然發(fā)現(xiàn)Tandayapa Andean蟾蜍的。

3. C. 細(xì)節(jié)理解題。由倒數(shù)第三段描述 Tandayapa Andean膽?zhàn)N外觀特征可知,該 蟾蜍在成長(zhǎng)過(guò)程中經(jīng)歷了身體顏色的變化。

4. B. 推理判斷題。由倒數(shù)第二段的they still worry about the species' survival. Humans have been clearing much of the forest where the toads live 可知,雖然已經(jīng)消失的Tandayapa Andean蟾蜍被再次發(fā)現(xiàn),但它們?nèi)匀幻媾R失去生存環(huán)境的危險(xiǎn)。

5. D. 標(biāo)題歸納題。文章首段即本文的主旨段。1970年發(fā)現(xiàn)的 Tandayapa Andean蟾蜍被認(rèn)定是已消失的物種,但四十多年之后大量Tandayapa Andean蟾蜍又重新被發(fā)現(xiàn)。故D項(xiàng)作標(biāo)題最符合本文大意。

題目來(lái)源:2016年英語(yǔ)周報(bào)高二新課標(biāo) > 第45期 2015-2016學(xué)年高二課標(biāo)

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