19.Some plants can produce bad smell to protect themselves.Also some plants have thorns as roses.The leaves of some plants can change color.Some plants can eat insects!
Lots of animals try to eat plants.But some plants have their ways of fighting back.For example,roses,and many other plants are covered with sharp thorns.When a big animal tried to bite them,it hurts!
It can be freezing cold in late winter-too cold for most flowers to grow.But some plants can make their own heat!Take a skunk cabbage for example.That's the name of a plant whose flowers open earlier than most other North American flowers.As the flower grows,it sometimes makes enough heat to melt(融化) its way through snow and even ice!
The heat also helps the flower give off a smell like rotten meat,which attracts many insects thathave come out early.The flies go inside the flower for food.Ha-ha,it's a trick!There's no food.But while a fly is in there,it gets covered with pollen(花粉).Then it may spread this pollen to the next skunk cabbage.Fooled you twice!
When an antelope or other large animal chews the leaves of an African acacia tree,the tree may call out a warning.
How?It may talk with gas!First the tree sends some chemicals into its leaves to make them taste bad.But it also may send a special gas out through its leaves.As the gas spreads to other acacia trees,it"tells"those trees,"Look out,hungry animals are coming!"Then the other trees may start sending the chemicals into their leaves.Soon,the antelope finds the first tree's leaves too smelly to eat.And when it moves to the next tree,and the next,it finds that their leaves taste unpleasant.The antelope may have to walk more than 50 yards away to find a tree it can eat.
32.What is special about skunk cabbage?C
A.Its leaves can eat insects
B.Its flowers open the earliest
C.It tricks flies into spreading pollen
D.It gives off a smell to melt snow
33.What does the underlined word"you"refer to in paragraph 4?C
A.The reader B.The flower C.The fly D.The skunk cabbage
34.What does an African acacia tree do to protect itself?B
A.Move to the next tree
B.Send chemicals and a special gas
C.Cover itself with sharp thorns
D.Give off a smell like rotten meat
35.How does the passage develop?D
A.By using numbers
B.By telling stories
C.By comparing
D.By giving examples.
分析 本文主要講述了不同的植物通過不同的方法來保護自己.
解答 32.C 細節(jié)題.根據(jù)文章內(nèi)容,The flies go inside the flower for food.Ha-ha,it's a trick!There's no food.But while a fly is in there,it gets covered with pollen(花粉).Then it may spread this pollen to the next skunk cabbage.當蒼蠅飛進臭菘覓食的時候,它會發(fā)現(xiàn)花苞里面是空的,當它再次飛走的時候,會把沾了的花粉傳播到旁邊的花朵里,結(jié)合選項,故選C
33.C 詞義猜測題.根據(jù)文章內(nèi)容,But while a fly is in there,it gets covered with pollen(花粉).Then it may spread this pollen to the next skunk cabbage.Fooled you twice!當蒼蠅飛走的時候,會把沾了的花粉傳播到旁邊的花朵里,蒼蠅再次被愚弄被利用了,結(jié)合選項,故選C
34.B 細節(jié)題.根據(jù)文章內(nèi)容,When an antelope or other large animal chews the leaves of an African acacia tree,the tree may call out a warning…But it also may send a special gas out through its leaves.由此可知,非洲的金合歡樹會通過釋放一種特殊的氣體和化學物質(zhì)來保護自己,結(jié)合選項,故選B
35.D 細節(jié)題.根據(jù)文章內(nèi)容,文中對不同的樹和花的特點進行了舉例,來說明植物對自己的保護,結(jié)合選項,故選D
點評 本文是一個科教類閱讀理解,題目涉及多道細節(jié)理解題,做題時結(jié)合原文和題目有針對性的找出相關(guān)語句進行仔細分析,結(jié)合選項選出正確答案.推理判斷題也是要在抓住關(guān)鍵句子的基礎(chǔ)上合理的分析才能得出正確答案,切忌胡亂猜測,一定要做到有理有據(jù).