Why does the author mention the specimen preserved in the birth canal?

• A、To illustrate that the embryo fossils are quite advanced in their development.
  
  

• B、To explain why the fossils are well preserved
  
  

• C、To explain why the fossils are well preserved
  
  

• D、To prove that ichthyosaurs are marine animals
  
  

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Testing:Is it the Only Way to Evaluate Students?

About ten percent of ___41___ (spend) on primary and secondary education in the United States comes from the federal government. For ten years now, federal law has tied this cost to student ___42___ (perform) .States have been required to show progress through___43___ (year) testing.

States say testing tells only part of the story about efforts by schools and students to improve. So the Obama administration has eased the limits on states in ___44___ (measure) performance.

The western state of Colorado, for example, has a new ___45___ (assess) method.The idea is to show ___46___ (academy) growth, not just achievement on tests. It combines test scores, family income levels, school size, the ethnicity of the student and many other factors.

Josh Smith is principal of a middle school in a network of public charter schools ___47___ (call)  West Denver Prep. Charter schools are publicly funded but not operated the same as ___48___(tradition) public schools. Mr.Smith says he likes to show his students this graph so they can see their school's progress. On average, students enter sixth grade at West Denver Prep ___49___ (perform) below grade level. ___50___ (strange) enough, most are outperforming other students across the state three years later.

 

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Immigration and Problems

Hundreds of thousands of people supporting immigration rights in the US filled streets all over America in early 2006.Many held signs and American flags and asked to be ___31___as citizens rather than criminals. Senator John McCain held the opinion that the country should open a ___32___ to citizenship to immigrants  (移民)  who were already in the country illegally, while other politicians ___33___for stricter measures—including rounding up undocumented immigrants and sending them back to their home countries.

Canadian officials say that immigration applications continue to rise.Some want to keep the doors ___34___ . They need the labor. About 400.000 immigrants were allowed into the country in 2005, according to the Canadian Government statistics. ___35___ .all this growth means that cities need to adapt. New comers don't always make a smooth transition into jobs for which they are skilled.So industries are using mentoring  (辅导) programs to help new ___36___ find proper jobs.

With the large numbers of undocumented African immigrants arriving in the Canary Islands, the Spanish Government has decided to get ___37___ . There will be no more mass amnesties (特赦)  for the illegal immigrants, and anyone coming to Spain without___38___will be sent back.

France's new immigration and integration law gives the government new powers to encourage high-skilled migration. It takes ___39___ in 2007.The new law authorizes the government to help these identified employers find immigrant workers with needed skills or qualifications. The selected foreign employees will be granted“skills and talents”visas (签证) .But some people show the concern that it'll cause brain drain in ___40___countries.

A.immigrants	B.However	C.developing
D. path	E.open	F.tough
G.effect	H.Therefore	I.developed
J. permission	K.treated	L.called