托福语法选择题练习及答案3

　　1. --- that as both birds and mammals become larger, their metabolic rates er unit of tissue decrease, and they generally live longer.

　　(A) The truth

　　(B) If true

　　(C) It is true

　　(D) To be true

　　2. Asteroids are small and therefore very difficult to identify, even when --- to Earth.

　　(A) quite closely

　　(B) are being quite close

　　(C) are they quite closely

　　(D) they are quite close

　　3. A number of modern sculptors have rejected --- of minimal and environmental art and developed a style of extreme realism.

　　(A) which abstract qualities

　　(B) there are abstract qualities

　　(C) the abstract qualities

　　(D) the qualities are abstract

　　4. --- tributaries of the Mississippi River system were navigated by steamboats during the period before the outbreak of the Civil War.

　　(A) More than forty

　　(B) More than forty were

　　(C) Forty more than

　　(D) There were more than forty

　　5. Mary Eliza McDowell's introduction to social service came --- , when she assisted victims of the great Chicago Fire of 1871.

　　(A) was sixteen years old

　　(B) had sixteen years

　　(C) at age sixteen

　　(D) sixteen

　　6. Young herons are helpless for a few weeks --- they learn to fly.

　　(A) how

　　(B) before

　　(C) despite

　　(D) since

　　7. The history of painting is a fascinating chain of events that probably began with ---.

　　(A) ever made the very first pictures

　　(B) the ever made very first pictures

　　(C) the very first ever made pictures

　　(D) the very first pictures ever made

　　8. The center of gravity of the human body --- behind the hip joint.

　　(A) locates

　　(B) locating

　　(C) to locate

　　(D) is located

　　9. The leaves and stems of the alfalfa plant are the only parts of the plant ---.

　　(A) the uses for livestock fees

　　(B) for using livestock feed

　　(C) used for livestock feed

　　(D) they are used for livestock feed

　　10. --- choose to live in or near metropolitan areas simply because they like the rapid pace of city life.

　　(A) So large numbers of people to

　　(B) There are large numbers of people

　　(C) Large numbers of people

　　(D) Large numbers of people who

　　11. --- to space travelers is high acceleration or deceleration forces.

　　(A) Danger can be

　　(B) They can be dangerous

　　(C) What can be dangerous

　　(D) While danger

　　12. Organic chemistry has made many new products---.

　　(A) possible

　　(B) as possible

　　(C) are possible

　　(D) they are possible

　　13. Perfectly matched pearls, strung into a necklace, --- a far higher price than the same pearls sold individually.

　　(A) in order to bring

　　(B) their bringing

　　(C) bringing

　　(D) bring

　　14. Some metropolitan newspapers would make sizable volumes --- in book form.

　　(A) than the print

　　(B) print them

　　(C) if printed

　　(D) they are printed

　　15. Pennsylvania ranks high among the states population --- many areas are sparsely settled.

　　(A) and yet

　　(B) so even

　　(C) if not

　　(D) except for

　　参考答案：

　　CABBA CBAAB DCDAA