[单项选择]

In their darker moments, climatologists talk about their own "nightmare scenario". This is one where global warming has caused such significant climatic changes that ocean currents change direction. One scene from tile nightmare has the Gulf Stream moving south or even going into reverse, making winter in London look and feel like a St Petersburg January.
The ocean is a great moderating influence on the planet, soaking up heat around the tropics and depositing it in the cooler polar regions. Yet scientists know surprisingly little about how the sea does this— they estimate that the North Atlantic alone moves energy equivalent to the output of several hundred million power stations.
Last year oceanographers began their biggest international research initiative to learn more about ocean circulation. The first results from the World Ocean Circulation Experiment demonstrate just how complex the movement of sea-water can be. They have also given scienti
A. in the surface currents.
B. in the atmosphere.
C. in the deep currents.
D. along the seabed.

[单项选择]

In their darker moments, climatologists talk about their own "nightmare scenario". This is one where global warming has caused such significant climatic changes that ocean currents change direction. One scene from tile nightmare has the Gulf Stream moving south or even going into reverse, making winter in London look and feel like a St Petersburg January.
The ocean is a great moderating influence on the planet, soaking up heat around the tropics and depositing it in the cooler polar regions. Yet scientists know surprisingly little about how the sea does this— they estimate that the North Atlantic alone moves energy equivalent to the output of several hundred million power stations.
Last year oceanographers began their biggest international research initiative to learn more about ocean circulation. The first results from the World Ocean Circulation Experiment demonstrate just how complex the movement of sea-water can be. They have also given scienti
A. modify ocean currents.
B. change wind directions in the polar regions.
C. reduce the influence of currents.
D. increase wind speed.

[填空题]What does the passage talk about It talks about the changes in ______.

[单项选择]What did they talk about
A. quality control
B. recruiting people
C. advertising

[填空题]What scheme does Jatinder talk about

[单项选择]What does the speaker talk about
A. The role he’s going to play in the lab.
B. The workbook pupils are going to use.
C. The experiment the pupils are going to do.

[单项选择]Which distance did they talk about
A. In a factory.
B. In the classroom.
C. In a shop.