65what is the passage mainly about ?
(A) a group of forgotten heroes
(B)a book describing a terrifying battle
(C)a ship engineer’s wartime experience
(D)a merchant’s memories of a sea res cue

61. B My father was chief engineer of a merchant ship ，which was sunk in world war ？？？the book night of the U-boats told the story。 Memories In September ，1940，my mother ,sister and I went to Swansea ,where my father ‘s ship was getting ready to sail ,we brought him a family photography to be kept with him at all times and keep him safe . Then I remember my mother lying face down ,sobbing .she had heard from a friend that the ship had been sunk by a torpedo (鱼雷). I can remember the arrived of the telegram（电板），which in those days always brought bad news .my grandmother opened it ,it read ,safe .love ted.” My most vivid memory is being woken and brought down to sit on my father’s knee, his arm in a bandage . He was judged unfit to return to sea and took a shore job in Glasgow for the rest of the war, for as long as I can remember ,he had a weak heart ,mother said it was caused by the torpedoes .he said it was because of t he cigarette ,whichever ,he died suddenly in his early 50s. Ten years later I read night of the U-boat and able to complete the story . Atoast In my room is the book and the photograph .often , glass in hand, I have wondered how I would have dealt with an explosion ,a sinking ship ,a jump into a vast ocean and a wait for rescue ?lest (以免 )we forget ,I have some more whisky and toast the heroes of the war. we can infer that the mother and children went to Swansea ______. (A) to meet a friend (B)to see the father (C) to take a family (D)to enjoy the sailing of the ship

62.what did the author learn about the father from the telegram ? (A) he was still alive (B)his knee was broken (C) his ship had been sunk (D)he had arrived in Glasgow

63.the underlined word “it ” in paragraph 6 refers to the father ‘s _____ . (A) weak heart (B)taking a shore job (C) failure to return (D)injury caused by a torpedo

64.what can we know about the author ‘s father after his ship was attacked ? (A) he lost his arm (B)he repaired the engines (C) he managed to take a lifeboat (D)he was the last to leave the ship

66. C Arecent study of ancient and modern elephant has come up with the unexpected conclusion that the Arican elephant is divided into two distinct (不同的 )species The discovery was made by researchers at York and Harvard University when they were examing the genetic relationship between the ancient woolly mammoth and mastodon modern elephants—the Aian elepphant, Arican forest elephant, and Arican savanna elephant. Once they obastain DNAsequences（序列）from two fossils（化石）,mammoths and mastodons, the team comparted them with DNAfrom modern elephants. They found their amazement that mordern forest and savanna elephants are as distinct from each other as Aian elephants and mammoths. The scientists used detailed genetic analysis to prove that the Arican savanna elephant and the Arican forest elephant have been distinct species for several million years. The divergence of the two species took place around the time of the divergence of Aian elephants and woolly mamm oths. This result amazed all the scientists. There has long been debate in the scientific community that the two might be separate species, but this is the most convincing scientific evidence so far that they are indeed different species. Previously, many naturalists believed that Arican savanna elephants and Arican forest elephants were two populationgs of the same species, despite the elephants’ significant size differences. The savanna elephant has an average shoulder height of 3.5 metres while the forest elephant has an averate shoulder double the weight of the forest elephant.Bt the fact that they look so differrent does not neccssarily mean they are different species. However the prooflay in the analysisi of the DNA Afried Roca, assita nt professor in the Department of Aimal Sciences at t he University of Illinois, said, “We now have to treat the forest and savanna elephants as two difficult units for conservation purpose. Since 1950, all Aican elephants have been conserved as one species. Now that we know the forest and savanna elephants have been distinct animals, the forest elephant should become a bigger priority（优先）for conservation purposes.” One of the fossiles studied by the researchers is that of . (A) the Aian elephant (B)the forest elephant (C)the savanna elephant (D)the maslodon elephant

67. The underlined word “divergence” in Paragraph 4 means “ .” (A) evolution (B)exhibition (C) separation (D)examination

68. The researchers’ conclusion was based on a study of the Arican elephant’s . (A) DNA (B)height (C) weight (D)population

69. What are Afred Roca’s words mainly about? (A) The conservation of Aican elephant (B)The purpose of studying Aican elephant (C) The way to divide Aican elephants into two units (D)The renson for the distinction of Arican elephants

70.Which of the following can be the best tille for the passage? (A) Naturalist’Bliefs about Elephants (B)Aazing Experiments about Elephants (C)A Unexpected Finding ahout Elephants (D)ALong Scientifif Debate about Elephants

21. Every evening after dinner, if not ______ from work, I will spend some time walking my dog. (A). being tired (B). tiring (C). tired (D). to be tired