16．Section A
Directions：For each blank in the following passage there are four words or phrases marked A，B，C and D．Fill in each blank with the word or phrase that best fits the context．
The Paris agreement to fight climate change became international law Friday．The landmark deal aims to deal with global warming among growing （41）B that the world is becoming hotter even faster than scientists expected．
So far，96 countries，accounting for just over two-thirds of the world's greenhouse gas emissions，have formally joined the agreement，which （42）A to limit global warming this century to 2 degrees Celsius （3.6 degrees Fahrenheit） above what it was before machines and （43）D appeared in the late 1700s．The United States （44）A entered into the agreement in September，and more countries are expected to come aboard in the coming weeks and months．
United Nations Secretary General Ban-Ki Moon celebrated the event，talking with nongovernmental groups at U．N．headquarters in New York to hear their concerns and （45）C for the future．
"This is an emotional moment for me．It is a credit to all of you．And it is （46）B for the world，"Ban said in his opening remarks．
He praised the （47）B for getting hundreds of millions of people to back fighting climate change but （48）C the outcome remained uncertain．
"We are still in a race （49）A time．We need to move on to a low-emission and climate-sustainable future，"Ban added．
Scientists praised the speed at which the agreement，signed by 192 parties last December in Paris，has come into force，saying it shows a new commitment by the international community to （50）C a problem that is melting polar ice caps，sending sea levels （51）Band transforming vast areas into desert．
"（52）D the real effect of the agreement after it goes into effect is still uncertain，it is a simple sign that the international society is much more open to alter economic and political behavior to control climate change，which is （53）D positive，"said Feng Qi，executive director of the School of Environmental and Sustainability Sciences at Kean University in New Jersey．
Scientists and （54）B say the agreement is the first step of a much longer and complicated process of reducing the use of fossil fuels，which currently （55）C the majority of the planet's energy needs and also are the primary drivers of global warming．
| 41．A．applicants | B．fears | C．observations | D．comments |
| 42．A．seeks | B．allows | C．assumes | D．seizes |
| 43．A．institutions | B．laboratories | C．committees | D．factories |
| 44．A．formally | B．instantly | C．particularly | D．generally |
| 45．A．prejudices | B．approaches | C．visions | D．concepts |
| 46．A．spiritual | B．historic | C．appropriate | D．valueless |
| 47．A．agreements | B．groups | C．headquarters | D．emissions |
| 48．A．apologized | B．denied | C．warned | D．overlooked |
| 49．A．against | B．on | C．for | D．without |
| 50．A．avoid | B．find | C．address | D．ignore |
| 51．A．falling | B．rising | C．disappearing | D．remaining |
| 52．A．Until | B．Since | C．If | D．While |
| 53．A．under no circumstances | B．on the contrary | C．in no case | D．by all means |
| 54．A．officers | B．policymakers | C．employers | D．technicians |
| 55．A．remove | B．preserve | C．supply | D．restore |
