cDNA合成及克隆的基本步骤包括用反转录酶合成cDNA第一链，聚合酶合成cDNA第二

①Forests help to keep water from running away, so drought does not often happen. The trees in the forests can keep raindrops from hitting the soil directly, and the dead leaves on the ground can also keep the water from running away.②

Chinese people don’t want to see more floods and droughts. We have built the “ Great Green Wall” of trees across the northern part of our country.③ Thanks to the “ Great Green Wall”, we can prevent the wind from blowing the earth away. It will stop the sand from moving towards the rich farmland. That’s why more “ Great Green Walls” are needed. Trees must be planted all over the world.④

根据短文内容，从题中所给的A、B、C、D四个选项中，选择最佳答案。（10分）

小题1: “Great Green Wall will make the world better.” This sentence should be put in      .

A．①

B．②

C．③

D．④小题2:       can help to keep water from running away.

A．Rain

B．Forests

C．Sand

D．Land小题3: The reason of building “ Great Green Wall”is        .

A．to make the city beautiful

B．to move the sand

C．to stop the sand from moving towards the rich farmland.

D．to stop the rain from hitting the soil directly.小题4: We have built the “ Great Green Wall” of trees        of China.

A．in the east

B．in the west

C．in the south

D．in the north.小题5:From the passage, we can know which is wrong.

A．We must plant more trees.

B．We have to protect our environment.

C．“Great Green Wall” project is very beneficial to us.

D．It is not necessary that trees must be planted all over the world.

读图，回答问题。

（1）鸦片战争后，A地被开放为通商口岸，此地是_______________；与上述史实相关的不平等条约是《_______________》。

（2）甲午中日战争后，B地区曾被作为割让对象，此地区是_______________与上述史实相关的不平等条约是《_______________》。

（3）上述两个不平等条约分别对近代中国造成了什么严重后果？

_________________________________________________________

第二部分：英语知识及运用（共两节，满分35分）

第一节：完形填空（共10小题；每小题2分, 满分20分） 

阅读下面短文，从短文后所给各题的四个选项A、B、C和D中选出能填入相应空白处的最佳选项。

Rubber ducks are being used to help scientists understand global warming and melting glaciers. NASA researchers have  21   90 ducks into holes in Greenland's fastest moving glacier, the Jakobshavn Glacier between Greenland and Canada. The   22   have each been marked with the words "science experiment" along with an e-mail address. If they are found scientists will be able to  23   how the water moves through the ice and provide information about the   24   of glaciers. Scientists are still   25   about why glaciers speed up in summer and head towards the sea. One theory is that as the summer sun melts ice on top of the glacier's surface, the water moves to the bottom of the glacier, where it helps to   26   the movement of ice toward the coast. The Jakobshavn Glacier is believed to be the   27   of the iceberg that sank the Titanic in 1912. Robert Jones, the experiment organizer, said none of the ducks had been   28   yet. "We haven't heard back but it may take some time until somebody actually finds it and decides to send us a/an   29   that they have found it," he said. "These are places that are   30   so there aren't people walking around."

21. A. flown                 B. buried               C. hidden                     D. dropped

22. A. results            B. toys               C. glaciers          D. scientists

23. A. remember       B. invent            C. learn                 D. control

24. A. development    B. movement           C. growth        D. travels

25. A. unsure          B. excited          C. concerned       D. ignorant

26. A. reduce          B. control        C. speed         D. stop

27. A. position               B. source            C. reason            D. result

28. A. hurt                 B. eaten              C. missing         D. reported

29. A. email            B. card                  C.    fax          D. sign

30. A. hidden          B. lost                C.    remote       D. quiet

简述科学管理理论的代表人物、称号、主要著作及成就。

按照我国对外贸易法的规定，对限制进口或出口的货物，实行（）或者许可证管理。

A、配额

B、限额

C、定额

D、差额