11.Color TV was first shown in 1929. It took more than two decades,________,
until 1951, for color broadcasts to begin in the USA.
A. anyway B. therefore C. otherwise D. though
10.Tom still thinks that The Hurt Locker is ________ Avatar.
A. so great a film as B. as great film as C. as great a film as D. as a great as
9.Miss Li ________ as a biology teacher for fifteen years in our school,
and now she is Party secretary of our city.
A. has worked B. worked C. had worked D. works
8.-I thought Stephanie and Lee were getting married in June.
-No, that’s ________ her cousin’s wedding is.
A. how B. when C. why D. where
7.Since its entry into ________ Chinese market, Google has been enjoying
________ legal market access and national treatment.
A. the; 不填 B. 不填; 不填 C. a; the D. the; a
5.bathe A. thick B.cloth C.clothing D. breath
第二节 语法和词汇知识(共15小题;每小题1分,满分15分)
从A、B、C、D四个选项中,选出可以入空白处的最佳选项,并在答题卡上将该项涂黑。
a’s housing price becomes one of the hottest topics during the Two
Sessions, ________ most ordinary Chinese people find it more and more
difficult to buy a flat in cities.
A. though B. so C. as D. where
4.theory A. really B.pioneer C. therefore D. diary
2.throw A. crowd B. bowl C. shower D. allow3.chemist A. machine B. check C.technique D. kitchen
第一节 语音知识(共5小题;每小题1分,满分5分)
从A、B、C、D四个选项中,找出其划线部分与所给单词的划线部分读音相同的选项,并在答题卡上将该项涂黑。
1.autumn A. fault B. Australia C. because D. aunt
34.(8分)植物组织培养是克隆植物的一种方法,过程如下图所示,回答相应的问题:
w.w#.w.k.s.5*p;m
(1)为了获得脱毒植株,外植体往往取自植物的花芽、叶芽等处的分生组织,其原因是 。
(2)培养皿中的培养基除添加营养物质外,还需要添加植物激素,其目的是诱导外植体 。
(3)在生产实践中为获得大量的细胞产物如:紫杉醇,可将① 放入液体培养基中经机械作用分散成单个细胞,制备成细胞浮液,再经过 即可获得大量细胞。
(4)组织培养过程需要植物生长和繁殖的最适条件,否则在光学显微镜下可能观察到发生 异常,进而使植物出现遗传不稳定甚至不育。
(5)植物组织培养技术不仅应用于花卉、果树的快速、大量繁殖以及脱毒植株的获取,还广泛用于 、 、 等育种过程中w.w#.w.k.s.5*p;m。
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