[填空题]David is 10 years old. His sister is 8 years old
David is ______ years than ______ his sister.

[填空题]David is 10 years old. His sister is 8 years old David is ______ years than ______ his sister.

[单项选择]Colin married my sister and I married his brother, （　） makes Colin and me double in-laws.
A. what
B. which
C. that
D. it

[单项选择]Cohn married my sister and I married his brother,（）makes Cohn and me double in-laws.
A. what
B. which
C. that
D. it

[单项选择]A. She hasn’t seen her sister for years.
B. She has no time to see her sister.
C. She is eager to go back to Colorado for the scene.
D. She is so busy that she has no time to climb the mountain.

[填空题]David Jablonski and his colleagues divided the Earth’s surface into two: ______ and the "extratropics".

[单项选择]David（）his company’s success to the unity of all the staff and their persevering hard work.
A. attributed
B. contributed
C. acknowledged
D. pledged

[单项选择]The artist spent years on his monumental painting, which covered the whole roof of the church, the biggest in the country.（　）
A. archaic
B. sentimental
C. outstanding
D. entire

[单项选择]Five and a half years into his presidency, George Bush finally vetoed a bill this week. Oddly enough, it was one that most Americans support: it would have expanded foderal funding for embryonic stem-cell research. The House and Senate had both passed the bill by wide, but not veto-proof margins, so Mr. Bush’s word is final, at least until after the mid-term elections in November.
Stem cells are cells that have not yet decided what they want to be when they grow up. That is, they can become blood cells, brain cells, or pretty much any other type of cell. Their versatility makes them extremely useful for medical research. The ethical snag is that the best stem cells are harvested from human embryos, killing them. For the most ardent pro-lifers, including Mr. Bush and many of his core supporters, that is murder. Proponents of embryonic stem-cell research point out that hordes of embryos are created during fertility treatment, and the vast majority of these are either frozen indefini
A. the House and Senate had not only passed the bill widely, but veto-proof margins.
B. most Americans support the bill although George Bush vetoed an opposite bill.
C. Mr. Bush’s opinion is still final after the House and Senate had passed the bill by wide.
D. George Bush vetoed the first critical bill for embryonic adult-cell research this week.

[单项选择]{{B}}第三篇{{/B}}