We have strong ________ for believing that the newly-invented material is not only popular but also a monument to the eco-friendly lifestyle.

A. grounds               B. reasons              C. causes           D. purposes

Scientists discovered 163 new species in Southeast Asia’s Greater Mekong region last year，but all are at risk of extinction due to climate change，the WWF said in a report released Friday.

The newly discovered creatures include a bird?eating frog with fangs (毒牙)，a bird that would rather walk than fly and a gecko (壁虎) whose alien appearance inspired the report’s title of “Close Encounters”，the conservation group said.

The report was released ahead of major UN talks on climate change in Bangkok next week，which are being held before a make?or?break summit in Copenhagen this December.

“Some species will be able to adapt to climate change，and many will not，potentially resulting in massive extinction，” Stuart Chapman，director of the WWF Greater Mekong program，said in the report.“Rare and endangered species like those newly discovered are especially vulnerable (易受伤害的) because climate change will further shrink their already restricted habitats，” he said.

“The new discoveries in 2010 include 100 plants,28 fish,18 reptiles,14 amphibians,2 mammals and a bird，”the WWF report said.The area spans Cambodia，Laos，Myanmar，Thailand，Vietnam and China’s Yunnan Province.

“Among the new species is the bird?eating fanged frog，which remains hidden in a protected area of Thailand despite the fact that scientists are studying there for 40 years，” the report said.

The tiger?striped pit viper was discovered accidentally on an island off the coast of Vietnam when a scientist was looking? for a lizard and his son pointed out that his hand was on a rock right next to? the snake’s fangs.“We caught the snake and the gecko and they both proved to be new species，” researcher Lee Grismer of La Sierra University in California was quoted as saying in the report.The leopard gecko，found on another Vietnamese island，has the coloring of a leopard and bizarre orange，cat?like eyes and thin legs.

The Greater Mekong region has proved a rich area? for scientists.The WWF said in December 2010 that it had found 1,068 new species there between 1997 and 2009.

1. What is special about the newly discovered bird?

A．It usually walks.

B．It likes walking and flying.

C．It can eat other birds.

D．It can eat frogs.

2. Stuart Chapman believes that________.

A．most of the newly discovered species can adapt to climate change

B．climate change can cause massive extinction of the newly discovered species

C．the newly discovered species are not so vulnerable to climate change

D．many species have already died out because of climate change

3. When Lee Grismer discovered the tiger?striped pit viper，he probably felt________.

A．frightened? B．disappointed

C．excited? D．puzzled

4.What does the passage mainly tell us?

A．The Greater Mekong region is a rich area for scientists.

B．Many rare species remain to be discovered in the Mekong region.

C．Scientists have discovered many new species in the Mekong region.

D．Climate change threatens Mekong new species.

After more than a year of bitter political debate, President Obama sat down in the White House East Room on March 23 and signed the 2010 Patient Protection and Affordable Care Act into law with a pen，and then another pen，and another．Obama used 22 pens to sign the $938 billion health care bill．

The practice of using different pens to sign important legislation（法规）dates at least as far back as Franklin Roosevelt．The reason is fairly simple．The pen used to sign historic legislation itself becomes a historical artifact．The more pens a President uses, the more thank-you gifts he can offer to those who helped create that piece of history．The White House often give pens to supporters of the newly signed legislation．When Lyndon Johnson signed the Civil Rights Act in 1964, he reportedly used more than 75 pens and gave one of the first ones to Martin Luther King Jr．And in 1996, President Clinton gave the four pens he used to sign the Line-Item Veto bill to those most likely to appreciate the bill's consequence.

    Once they're given away, some pens end up in museums; others are displayed proudly in recipients'(接受者) offices or homes．But they sometimes appear again, like in the 2008 presidential campaign（竞选活动）, when John Macain promised to use the same pen given to him by President Reagan to cut pork from the federal budget．

Not every President goes for the multipen signature, however．President George W．Bush preferred signing bills with only one pen and then offering several unused "gift" pens as souvenirs．

We can learn from paragraph 1 that the 2010 Patient Protection and Affordable Care Act        ．

       A．has been passed easily     B．was put forward one year ago

       C．becomes law in the USA D．is unimportant

How are the pens dealt with after being used by President Obama?

       A．Supporters of the newly signed legislation are likely to get some of them.

       B．Obama will keep them.

       C．They will be just set aside

       D．They will be sold to the public at a high price．

What can we learn about John Macain?

       A．He was ever President in the USA.

       B．He took part in the 2008 presidential campaign.

       C．He never used the pen given by Reagan.

       D．He was only concerned about his own business． 

What does this passage mainly tell us ?

       A．Obama signed the 2010 Patient Protection and Affordable Care Act．

       B．It is a practice to use multiple pens to sign important legislation in the USA．

       C．Pens are necessary in the signature.

       D．All the presidents like the multipen signature.

They are all interested in the newly-built apartments along the river,        really want to buy them yet.

A. none of them                B. neither of them  C. none of whom              D. neither of whom

With a lot of difficult problems ________, the newly-elected president is having a hard time.

A. settled B. setting

C. to settle      D. being settled